./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 39fe77adb61a1e466f06fcf9920e7f42d562f22740249d3a797ea504e0f3c31a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 12:41:35,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:41:35,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:41:35,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:41:35,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:41:35,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:41:35,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:41:35,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:41:35,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:41:35,530 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:41:35,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:41:35,532 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:41:35,532 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:41:35,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:41:35,534 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:41:35,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:41:35,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:41:35,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:41:35,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:41:35,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:41:35,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:41:35,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:41:35,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:41:35,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:41:35,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:41:35,548 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:41:35,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:41:35,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:41:35,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:41:35,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:41:35,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:41:35,551 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:41:35,552 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:41:35,552 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:41:35,553 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:41:35,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:41:35,554 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:41:35,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:41:35,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:41:35,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:41:35,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:41:35,556 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 12:41:35,575 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:41:35,575 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:41:35,575 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:41:35,575 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:41:35,576 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:41:35,576 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:41:35,576 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:41:35,576 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:41:35,577 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:41:35,577 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:41:35,577 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:41:35,577 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:41:35,577 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:41:35,577 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:41:35,577 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:41:35,578 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:41:35,578 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:41:35,578 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:41:35,579 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:41:35,579 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 12:41:35,579 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:41:35,579 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 12:41:35,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:41:35,579 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:41:35,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:41:35,580 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:41:35,580 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 12:41:35,580 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:41:35,580 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:41:35,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:41:35,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:41:35,581 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:41:35,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:41:35,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:41:35,581 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:41:35,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:41:35,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:41:35,582 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:41:35,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:41:35,582 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:41:35,582 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:41:35,582 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_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39fe77adb61a1e466f06fcf9920e7f42d562f22740249d3a797ea504e0f3c31a [2022-12-14 12:41:35,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:41:35,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:41:35,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:41:35,796 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:41:35,796 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:41:35,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec27_product34.cil.c [2022-12-14 12:41:38,386 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:41:38,568 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:41:38,569 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/sv-benchmarks/c/product-lines/email_spec27_product34.cil.c [2022-12-14 12:41:38,580 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/data/839730bb2/92d1ba6ff6ff4a48935e758569e4603f/FLAG3d9be9d6a [2022-12-14 12:41:38,590 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/data/839730bb2/92d1ba6ff6ff4a48935e758569e4603f [2022-12-14 12:41:38,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:41:38,594 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:41:38,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:41:38,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:41:38,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:41:38,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:41:38" (1/1) ... [2022-12-14 12:41:38,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45819405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:41:38, skipping insertion in model container [2022-12-14 12:41:38,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:41:38" (1/1) ... [2022-12-14 12:41:38,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:41:38,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:41:39,004 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:41:39,011 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:41:39,011 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:41:39,014 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:41:39,032 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:41:39,036 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:41:39,038 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_41c92e34-ddb9-4559-ba1c-b9c514654e0f/sv-benchmarks/c/product-lines/email_spec27_product34.cil.c[51595,51608] [2022-12-14 12:41:39,085 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:41:39,086 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:41:39,088 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:41:39,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:41:39,101 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:41:39,145 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:41:39,147 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:41:39,147 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:41:39,148 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:41:39,152 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:41:39,153 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:41:39,154 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_41c92e34-ddb9-4559-ba1c-b9c514654e0f/sv-benchmarks/c/product-lines/email_spec27_product34.cil.c[51595,51608] [2022-12-14 12:41:39,165 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:41:39,166 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:41:39,167 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:41:39,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:41:39,190 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:41:39,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:41:39 WrapperNode [2022-12-14 12:41:39,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:41:39,191 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:41:39,191 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:41:39,192 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:41:39,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:41:39" (1/1) ... [2022-12-14 12:41:39,215 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:41:39" (1/1) ... [2022-12-14 12:41:39,254 INFO L138 Inliner]: procedures = 134, calls = 238, calls flagged for inlining = 61, calls inlined = 58, statements flattened = 1088 [2022-12-14 12:41:39,255 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:41:39,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:41:39,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:41:39,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:41:39,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:41:39" (1/1) ... [2022-12-14 12:41:39,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:41:39" (1/1) ... [2022-12-14 12:41:39,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:41:39" (1/1) ... [2022-12-14 12:41:39,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:41:39" (1/1) ... [2022-12-14 12:41:39,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:41:39" (1/1) ... [2022-12-14 12:41:39,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:41:39" (1/1) ... [2022-12-14 12:41:39,293 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:41:39" (1/1) ... [2022-12-14 12:41:39,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:41:39" (1/1) ... [2022-12-14 12:41:39,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:41:39,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:41:39,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:41:39,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:41:39,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:41:39" (1/1) ... [2022-12-14 12:41:39,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:41:39,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:41:39,330 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:41:39,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:41:39,368 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 12:41:39,368 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 12:41:39,368 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 12:41:39,368 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 12:41:39,368 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 12:41:39,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 12:41:39,368 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 12:41:39,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 12:41:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 12:41:39,369 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 12:41:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 12:41:39,369 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 12:41:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 12:41:39,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 12:41:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 12:41:39,369 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 12:41:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 12:41:39,370 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 12:41:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 12:41:39,370 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 12:41:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 12:41:39,370 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 12:41:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 12:41:39,370 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 12:41:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 12:41:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 12:41:39,370 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 12:41:39,371 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 12:41:39,371 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 12:41:39,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:41:39,371 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 12:41:39,371 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 12:41:39,371 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 12:41:39,371 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 12:41:39,371 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 12:41:39,371 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 12:41:39,371 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 12:41:39,372 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 12:41:39,372 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 12:41:39,372 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 12:41:39,372 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 12:41:39,372 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 12:41:39,372 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2022-12-14 12:41:39,372 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2022-12-14 12:41:39,372 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-12-14 12:41:39,372 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-12-14 12:41:39,372 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 12:41:39,373 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 12:41:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 12:41:39,373 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 12:41:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 12:41:39,373 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 12:41:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 12:41:39,373 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 12:41:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 12:41:39,373 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 12:41:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:41:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 12:41:39,374 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 12:41:39,374 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 12:41:39,374 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 12:41:39,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:41:39,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:41:39,542 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:41:39,545 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:41:40,167 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:41:40,500 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:41:40,500 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 12:41:40,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:41:40 BoogieIcfgContainer [2022-12-14 12:41:40,503 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:41:40,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:41:40,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:41:40,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:41:40,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:41:38" (1/3) ... [2022-12-14 12:41:40,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@631e48eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:41:40, skipping insertion in model container [2022-12-14 12:41:40,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:41:39" (2/3) ... [2022-12-14 12:41:40,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@631e48eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:41:40, skipping insertion in model container [2022-12-14 12:41:40,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:41:40" (3/3) ... [2022-12-14 12:41:40,509 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product34.cil.c [2022-12-14 12:41:40,525 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:41:40,525 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 12:41:40,566 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:41:40,571 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;@578b0a83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:41:40,571 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 12:41:40,576 INFO L276 IsEmpty]: Start isEmpty. Operand has 237 states, 133 states have (on average 1.2857142857142858) internal successors, (171), 138 states have internal predecessors, (171), 73 states have call successors, (73), 29 states have call predecessors, (73), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2022-12-14 12:41:40,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-12-14 12:41:40,587 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:41:40,588 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:41:40,588 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:41:40,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:41:40,592 INFO L85 PathProgramCache]: Analyzing trace with hash 84640552, now seen corresponding path program 1 times [2022-12-14 12:41:40,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:41:40,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491937998] [2022-12-14 12:41:40,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:41:40,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:41:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:41:40,833 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 12:41:40,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:41:40,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491937998] [2022-12-14 12:41:40,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491937998] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:41:40,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:41:40,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:41:40,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384639157] [2022-12-14 12:41:40,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:41:40,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 12:41:40,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:41:40,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 12:41:40,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 12:41:40,863 INFO L87 Difference]: Start difference. First operand has 237 states, 133 states have (on average 1.2857142857142858) internal successors, (171), 138 states have internal predecessors, (171), 73 states have call successors, (73), 29 states have call predecessors, (73), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 12:41:40,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:41:40,979 INFO L93 Difference]: Finished difference Result 382 states and 505 transitions. [2022-12-14 12:41:40,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 12:41:40,990 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 99 [2022-12-14 12:41:40,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:41:40,997 INFO L225 Difference]: With dead ends: 382 [2022-12-14 12:41:40,997 INFO L226 Difference]: Without dead ends: 234 [2022-12-14 12:41:41,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 12:41:41,003 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:41:41,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 268 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:41:41,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-12-14 12:41:41,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2022-12-14 12:41:41,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 131 states have (on average 1.2595419847328244) internal successors, (165), 135 states have internal predecessors, (165), 73 states have call successors, (73), 29 states have call predecessors, (73), 29 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2022-12-14 12:41:41,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 310 transitions. [2022-12-14 12:41:41,046 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 310 transitions. Word has length 99 [2022-12-14 12:41:41,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:41:41,047 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 310 transitions. [2022-12-14 12:41:41,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 12:41:41,047 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 310 transitions. [2022-12-14 12:41:41,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-12-14 12:41:41,050 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:41:41,050 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:41:41,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:41:41,051 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:41:41,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:41:41,052 INFO L85 PathProgramCache]: Analyzing trace with hash -193520691, now seen corresponding path program 1 times [2022-12-14 12:41:41,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:41:41,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221775763] [2022-12-14 12:41:41,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:41:41,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:41:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:41:41,206 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 12:41:41,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:41:41,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221775763] [2022-12-14 12:41:41,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221775763] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:41:41,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:41:41,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:41:41,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567756426] [2022-12-14 12:41:41,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:41:41,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:41:41,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:41:41,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:41:41,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:41:41,210 INFO L87 Difference]: Start difference. First operand 234 states and 310 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 12:41:41,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:41:41,337 INFO L93 Difference]: Finished difference Result 378 states and 490 transitions. [2022-12-14 12:41:41,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:41:41,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 100 [2022-12-14 12:41:41,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:41:41,340 INFO L225 Difference]: With dead ends: 378 [2022-12-14 12:41:41,341 INFO L226 Difference]: Without dead ends: 236 [2022-12-14 12:41:41,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:41:41,344 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 0 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:41:41,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 529 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:41:41,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-12-14 12:41:41,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2022-12-14 12:41:41,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 133 states have (on average 1.255639097744361) internal successors, (167), 137 states have internal predecessors, (167), 73 states have call successors, (73), 29 states have call predecessors, (73), 29 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2022-12-14 12:41:41,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 312 transitions. [2022-12-14 12:41:41,368 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 312 transitions. Word has length 100 [2022-12-14 12:41:41,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:41:41,368 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 312 transitions. [2022-12-14 12:41:41,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 12:41:41,368 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 312 transitions. [2022-12-14 12:41:41,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-12-14 12:41:41,371 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:41:41,371 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:41:41,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 12:41:41,371 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:41:41,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:41:41,372 INFO L85 PathProgramCache]: Analyzing trace with hash 867252578, now seen corresponding path program 1 times [2022-12-14 12:41:41,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:41:41,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164699516] [2022-12-14 12:41:41,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:41:41,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:41:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:41:41,498 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 12:41:41,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:41:41,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164699516] [2022-12-14 12:41:41,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164699516] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:41:41,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:41:41,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:41:41,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764901801] [2022-12-14 12:41:41,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:41:41,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:41:41,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:41:41,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:41:41,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:41:41,501 INFO L87 Difference]: Start difference. First operand 236 states and 312 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 12:41:41,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:41:41,622 INFO L93 Difference]: Finished difference Result 507 states and 691 transitions. [2022-12-14 12:41:41,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:41:41,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 105 [2022-12-14 12:41:41,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:41:41,624 INFO L225 Difference]: With dead ends: 507 [2022-12-14 12:41:41,624 INFO L226 Difference]: Without dead ends: 289 [2022-12-14 12:41:41,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:41:41,625 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 59 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:41:41,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 542 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:41:41,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-12-14 12:41:41,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 284. [2022-12-14 12:41:41,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 167 states have (on average 1.3293413173652695) internal successors, (222), 171 states have internal predecessors, (222), 87 states have call successors, (87), 29 states have call predecessors, (87), 29 states have return successors, (86), 85 states have call predecessors, (86), 86 states have call successors, (86) [2022-12-14 12:41:41,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 395 transitions. [2022-12-14 12:41:41,649 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 395 transitions. Word has length 105 [2022-12-14 12:41:41,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:41:41,649 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 395 transitions. [2022-12-14 12:41:41,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 12:41:41,650 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 395 transitions. [2022-12-14 12:41:41,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-12-14 12:41:41,653 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:41:41,653 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:41:41,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 12:41:41,653 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:41:41,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:41:41,654 INFO L85 PathProgramCache]: Analyzing trace with hash 939850014, now seen corresponding path program 1 times [2022-12-14 12:41:41,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:41:41,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744235621] [2022-12-14 12:41:41,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:41:41,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:41:41,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:41:41,801 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 12:41:41,801 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:41:41,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744235621] [2022-12-14 12:41:41,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744235621] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:41:41,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701592302] [2022-12-14 12:41:41,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:41:41,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:41:41,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:41:41,803 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:41:41,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 12:41:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:41:42,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:41:42,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:41:42,115 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 12:41:42,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:41:42,198 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 12:41:42,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701592302] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:41:42,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [66014529] [2022-12-14 12:41:42,216 INFO L159 IcfgInterpreter]: Started Sifa with 96 locations of interest [2022-12-14 12:41:42,216 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:41:42,219 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:41:42,223 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:41:42,223 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:42:06,447 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 12:42:06,793 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 12:42:07,122 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:42:49,440 WARN L233 SmtUtils]: Spent 9.05s on a formula simplification. DAG size of input: 573 DAG size of output: 418 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:42:56,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [66014529] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:42:56,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:42:56,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 12:42:56,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573297460] [2022-12-14 12:42:56,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:42:56,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 12:42:56,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:42:56,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 12:42:56,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-12-14 12:42:56,610 INFO L87 Difference]: Start difference. First operand 284 states and 395 transitions. Second operand has 21 states, 16 states have (on average 3.5625) internal successors, (57), 15 states have internal predecessors, (57), 7 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2022-12-14 12:43:02,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:43:02,701 INFO L93 Difference]: Finished difference Result 615 states and 890 transitions. [2022-12-14 12:43:02,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-14 12:43:02,701 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 3.5625) internal successors, (57), 15 states have internal predecessors, (57), 7 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) Word has length 117 [2022-12-14 12:43:02,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:43:02,704 INFO L225 Difference]: With dead ends: 615 [2022-12-14 12:43:02,704 INFO L226 Difference]: Without dead ends: 349 [2022-12-14 12:43:02,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 49.5s TimeCoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-12-14 12:43:02,706 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 59 mSDsluCounter, 3615 mSDsCounter, 0 mSdLazyCounter, 1948 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 3905 SdHoareTripleChecker+Invalid, 1957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:43:02,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 3905 Invalid, 1957 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1948 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-12-14 12:43:02,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-12-14 12:43:02,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 307. [2022-12-14 12:43:02,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 189 states have (on average 1.3492063492063493) internal successors, (255), 193 states have internal predecessors, (255), 87 states have call successors, (87), 30 states have call predecessors, (87), 30 states have return successors, (86), 85 states have call predecessors, (86), 86 states have call successors, (86) [2022-12-14 12:43:02,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 428 transitions. [2022-12-14 12:43:02,782 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 428 transitions. Word has length 117 [2022-12-14 12:43:02,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:43:02,783 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 428 transitions. [2022-12-14 12:43:02,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 3.5625) internal successors, (57), 15 states have internal predecessors, (57), 7 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2022-12-14 12:43:02,783 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 428 transitions. [2022-12-14 12:43:02,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 12:43:02,786 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:43:02,786 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:43:02,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 12:43:02,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:43:02,988 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:43:02,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:43:02,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1439401375, now seen corresponding path program 1 times [2022-12-14 12:43:02,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:43:02,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688957840] [2022-12-14 12:43:02,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:43:02,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:43:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:43:03,087 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 12:43:03,087 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:43:03,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688957840] [2022-12-14 12:43:03,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688957840] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:43:03,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:43:03,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:43:03,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097326509] [2022-12-14 12:43:03,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:43:03,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:43:03,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:43:03,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:43:03,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:43:03,090 INFO L87 Difference]: Start difference. First operand 307 states and 428 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 12:43:03,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:43:03,300 INFO L93 Difference]: Finished difference Result 717 states and 1036 transitions. [2022-12-14 12:43:03,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:43:03,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 111 [2022-12-14 12:43:03,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:43:03,304 INFO L225 Difference]: With dead ends: 717 [2022-12-14 12:43:03,304 INFO L226 Difference]: Without dead ends: 434 [2022-12-14 12:43:03,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:43:03,306 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 57 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:43:03,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 555 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:43:03,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-12-14 12:43:03,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 429. [2022-12-14 12:43:03,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 280 states have (on average 1.4107142857142858) internal successors, (395), 284 states have internal predecessors, (395), 118 states have call successors, (118), 30 states have call predecessors, (118), 30 states have return successors, (117), 116 states have call predecessors, (117), 117 states have call successors, (117) [2022-12-14 12:43:03,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 630 transitions. [2022-12-14 12:43:03,485 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 630 transitions. Word has length 111 [2022-12-14 12:43:03,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:43:03,485 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 630 transitions. [2022-12-14 12:43:03,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 12:43:03,486 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 630 transitions. [2022-12-14 12:43:03,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-12-14 12:43:03,489 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:43:03,489 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:43:03,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 12:43:03,489 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:43:03,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:43:03,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1705865950, now seen corresponding path program 1 times [2022-12-14 12:43:03,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:43:03,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907810339] [2022-12-14 12:43:03,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:43:03,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:43:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:43:03,614 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-14 12:43:03,614 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:43:03,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907810339] [2022-12-14 12:43:03,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907810339] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:43:03,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974898448] [2022-12-14 12:43:03,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:43:03,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:43:03,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:43:03,616 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:43:03,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 12:43:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:43:03,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 1312 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:43:03,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:43:03,930 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-14 12:43:03,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:43:03,991 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-14 12:43:03,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974898448] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:43:03,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [94252980] [2022-12-14 12:43:03,996 INFO L159 IcfgInterpreter]: Started Sifa with 100 locations of interest [2022-12-14 12:43:03,996 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:43:03,997 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:43:03,997 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:43:03,997 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:43:39,772 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 12:43:40,062 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 263 for LOIs [2022-12-14 12:43:41,807 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-12-14 12:43:42,085 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 265 for LOIs [2022-12-14 12:43:44,721 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 225 for LOIs [2022-12-14 12:43:44,759 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 233 for LOIs [2022-12-14 12:43:44,793 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 233 for LOIs [2022-12-14 12:43:44,830 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 250 for LOIs [2022-12-14 12:43:44,874 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:44:24,206 WARN L233 SmtUtils]: Spent 5.95s on a formula simplification. DAG size of input: 584 DAG size of output: 333 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:44:30,217 WARN L233 SmtUtils]: Spent 5.71s on a formula simplification. DAG size of input: 586 DAG size of output: 335 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:44:42,102 WARN L233 SmtUtils]: Spent 11.61s on a formula simplification. DAG size of input: 585 DAG size of output: 457 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:44:53,875 WARN L233 SmtUtils]: Spent 11.48s on a formula simplification. DAG size of input: 583 DAG size of output: 455 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:45:18,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [94252980] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:45:18,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:45:18,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [4, 4, 4] total 50 [2022-12-14 12:45:18,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786868212] [2022-12-14 12:45:18,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:45:18,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-12-14 12:45:18,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:45:18,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-12-14 12:45:18,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=2318, Unknown=0, NotChecked=0, Total=2450 [2022-12-14 12:45:18,350 INFO L87 Difference]: Start difference. First operand 429 states and 630 transitions. Second operand has 45 states, 30 states have (on average 2.0) internal successors, (60), 28 states have internal predecessors, (60), 14 states have call successors, (27), 9 states have call predecessors, (27), 7 states have return successors, (24), 12 states have call predecessors, (24), 12 states have call successors, (24) [2022-12-14 12:45:37,000 WARN L233 SmtUtils]: Spent 9.03s on a formula simplification. DAG size of input: 464 DAG size of output: 450 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:45:45,986 WARN L233 SmtUtils]: Spent 8.65s on a formula simplification. DAG size of input: 462 DAG size of output: 448 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:46:10,137 WARN L233 SmtUtils]: Spent 6.12s on a formula simplification. DAG size of input: 585 DAG size of output: 343 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:46:31,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:46:31,735 INFO L93 Difference]: Finished difference Result 935 states and 1413 transitions. [2022-12-14 12:46:31,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-12-14 12:46:31,736 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 30 states have (on average 2.0) internal successors, (60), 28 states have internal predecessors, (60), 14 states have call successors, (27), 9 states have call predecessors, (27), 7 states have return successors, (24), 12 states have call predecessors, (24), 12 states have call successors, (24) Word has length 123 [2022-12-14 12:46:31,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:46:31,738 INFO L225 Difference]: With dead ends: 935 [2022-12-14 12:46:31,738 INFO L226 Difference]: Without dead ends: 569 [2022-12-14 12:46:31,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 144.6s TimeCoverageRelationStatistics Valid=203, Invalid=3579, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 12:46:31,740 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 179 mSDsluCounter, 5686 mSDsCounter, 0 mSdLazyCounter, 6811 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 5963 SdHoareTripleChecker+Invalid, 6835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 6811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time [2022-12-14 12:46:31,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 5963 Invalid, 6835 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [24 Valid, 6811 Invalid, 0 Unknown, 0 Unchecked, 21.6s Time] [2022-12-14 12:46:31,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-12-14 12:46:31,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 466. [2022-12-14 12:46:31,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 303 states have (on average 1.3993399339933994) internal successors, (424), 309 states have internal predecessors, (424), 127 states have call successors, (127), 37 states have call predecessors, (127), 35 states have return successors, (126), 121 states have call predecessors, (126), 126 states have call successors, (126) [2022-12-14 12:46:31,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 677 transitions. [2022-12-14 12:46:31,936 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 677 transitions. Word has length 123 [2022-12-14 12:46:31,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:46:31,936 INFO L495 AbstractCegarLoop]: Abstraction has 466 states and 677 transitions. [2022-12-14 12:46:31,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 30 states have (on average 2.0) internal successors, (60), 28 states have internal predecessors, (60), 14 states have call successors, (27), 9 states have call predecessors, (27), 7 states have return successors, (24), 12 states have call predecessors, (24), 12 states have call successors, (24) [2022-12-14 12:46:31,937 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 677 transitions. [2022-12-14 12:46:31,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-12-14 12:46:31,938 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:46:31,938 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:46:31,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 12:46:32,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:46:32,140 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:46:32,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:46:32,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1819594970, now seen corresponding path program 1 times [2022-12-14 12:46:32,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:46:32,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652628756] [2022-12-14 12:46:32,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:46:32,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:46:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:46:32,283 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 12:46:32,283 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:46:32,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652628756] [2022-12-14 12:46:32,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652628756] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:46:32,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379874551] [2022-12-14 12:46:32,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:46:32,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:46:32,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:46:32,285 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:46:32,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 12:46:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:46:32,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 1249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:46:32,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:46:32,562 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 12:46:32,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:46:32,631 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 12:46:32,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379874551] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:46:32,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [83025956] [2022-12-14 12:46:32,636 INFO L159 IcfgInterpreter]: Started Sifa with 93 locations of interest [2022-12-14 12:46:32,636 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:46:32,636 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:46:32,636 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:46:32,637 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:47:06,798 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 12:47:07,077 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 263 for LOIs [2022-12-14 12:47:08,758 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 233 for LOIs [2022-12-14 12:47:08,793 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-12-14 12:47:09,075 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 263 for LOIs [2022-12-14 12:47:11,721 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 273 for LOIs [2022-12-14 12:47:27,062 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 247 for LOIs [2022-12-14 12:47:27,707 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 247 for LOIs [2022-12-14 12:47:27,747 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 454 for LOIs [2022-12-14 12:47:28,306 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 245 for LOIs [2022-12-14 12:47:28,372 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 433 for LOIs [2022-12-14 12:47:28,945 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 475 for LOIs [2022-12-14 12:47:30,708 INFO L197 IcfgInterpreter]: Interpreting procedure isVerified with input of size 247 for LOIs [2022-12-14 12:47:30,747 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 250 for LOIs [2022-12-14 12:47:30,792 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:48:09,770 WARN L233 SmtUtils]: Spent 5.90s on a formula simplification. DAG size of input: 584 DAG size of output: 333 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:48:15,861 WARN L233 SmtUtils]: Spent 5.84s on a formula simplification. DAG size of input: 586 DAG size of output: 335 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:48:27,163 WARN L233 SmtUtils]: Spent 11.02s on a formula simplification. DAG size of input: 585 DAG size of output: 457 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:48:39,165 WARN L233 SmtUtils]: Spent 11.69s on a formula simplification. DAG size of input: 583 DAG size of output: 455 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:49:05,063 WARN L233 SmtUtils]: Spent 5.94s on a formula simplification. DAG size of input: 454 DAG size of output: 345 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:49:11,107 WARN L233 SmtUtils]: Spent 5.58s on a formula simplification. DAG size of input: 480 DAG size of output: 360 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:49:26,020 WARN L233 SmtUtils]: Spent 6.36s on a formula simplification. DAG size of input: 433 DAG size of output: 340 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:49:32,956 WARN L233 SmtUtils]: Spent 6.38s on a formula simplification. DAG size of input: 452 DAG size of output: 348 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:50:22,800 WARN L233 SmtUtils]: Spent 8.91s on a formula simplification. DAG size of input: 585 DAG size of output: 411 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:50:45,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [83025956] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:50:45,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:50:45,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [76] imperfect sequences [4, 4, 4] total 82 [2022-12-14 12:50:45,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261717802] [2022-12-14 12:50:45,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:50:45,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-12-14 12:50:45,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:50:45,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-12-14 12:50:45,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=6378, Unknown=0, NotChecked=0, Total=6642 [2022-12-14 12:50:45,628 INFO L87 Difference]: Start difference. First operand 466 states and 677 transitions. Second operand has 77 states, 49 states have (on average 1.163265306122449) internal successors, (57), 46 states have internal predecessors, (57), 23 states have call successors, (24), 15 states have call predecessors, (24), 12 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2022-12-14 12:51:04,313 WARN L233 SmtUtils]: Spent 7.67s on a formula simplification. DAG size of input: 464 DAG size of output: 450 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:51:12,518 WARN L233 SmtUtils]: Spent 7.70s on a formula simplification. DAG size of input: 462 DAG size of output: 448 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:51:37,372 WARN L233 SmtUtils]: Spent 5.25s on a formula simplification. DAG size of input: 585 DAG size of output: 343 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:52:25,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:52:25,148 INFO L93 Difference]: Finished difference Result 775 states and 1111 transitions. [2022-12-14 12:52:25,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-12-14 12:52:25,149 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 49 states have (on average 1.163265306122449) internal successors, (57), 46 states have internal predecessors, (57), 23 states have call successors, (24), 15 states have call predecessors, (24), 12 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 112 [2022-12-14 12:52:25,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:52:25,151 INFO L225 Difference]: With dead ends: 775 [2022-12-14 12:52:25,151 INFO L226 Difference]: Without dead ends: 640 [2022-12-14 12:52:25,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 255 SyntacticMatches, 3 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2260 ImplicationChecksByTransitivity, 253.8s TimeCoverageRelationStatistics Valid=369, Invalid=9333, Unknown=0, NotChecked=0, Total=9702 [2022-12-14 12:52:25,153 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 332 mSDsluCounter, 8550 mSDsCounter, 0 mSdLazyCounter, 12975 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 8820 SdHoareTripleChecker+Invalid, 13025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 12975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.5s IncrementalHoareTripleChecker+Time [2022-12-14 12:52:25,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 8820 Invalid, 13025 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [50 Valid, 12975 Invalid, 0 Unknown, 0 Unchecked, 39.5s Time] [2022-12-14 12:52:25,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2022-12-14 12:52:25,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 526. [2022-12-14 12:52:25,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 340 states have (on average 1.3735294117647059) internal successors, (467), 347 states have internal predecessors, (467), 142 states have call successors, (142), 45 states have call predecessors, (142), 43 states have return successors, (142), 135 states have call predecessors, (142), 141 states have call successors, (142) [2022-12-14 12:52:25,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 751 transitions. [2022-12-14 12:52:25,414 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 751 transitions. Word has length 112 [2022-12-14 12:52:25,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:52:25,415 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 751 transitions. [2022-12-14 12:52:25,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 49 states have (on average 1.163265306122449) internal successors, (57), 46 states have internal predecessors, (57), 23 states have call successors, (24), 15 states have call predecessors, (24), 12 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2022-12-14 12:52:25,415 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 751 transitions. [2022-12-14 12:52:25,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-12-14 12:52:25,416 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:52:25,416 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:52:25,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 12:52:25,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:52:25,618 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:52:25,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:52:25,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1537353196, now seen corresponding path program 1 times [2022-12-14 12:52:25,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:52:25,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158904169] [2022-12-14 12:52:25,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:52:25,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:52:25,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:52:25,787 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 12:52:25,787 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:52:25,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158904169] [2022-12-14 12:52:25,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158904169] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:52:25,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264120995] [2022-12-14 12:52:25,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:52:25,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:52:25,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:52:25,789 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:52:25,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 12:52:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:52:26,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 1418 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:52:26,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:52:26,060 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 12:52:26,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:52:26,124 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 12:52:26,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264120995] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:52:26,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1678026485] [2022-12-14 12:52:26,127 INFO L159 IcfgInterpreter]: Started Sifa with 105 locations of interest [2022-12-14 12:52:26,127 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:52:26,127 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:52:26,127 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:52:26,127 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:52:58,792 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 12:52:59,077 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 234 for LOIs [2022-12-14 12:52:59,137 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 243 for LOIs [2022-12-14 12:52:59,200 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 249 for LOIs [2022-12-14 12:52:59,274 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 12:52:59,562 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:53:33,721 WARN L233 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 508 DAG size of output: 385 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:53:42,884 WARN L233 SmtUtils]: Spent 8.85s on a formula simplification. DAG size of input: 619 DAG size of output: 467 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:53:55,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1678026485] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:53:55,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:53:55,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 12:53:55,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677218847] [2022-12-14 12:53:55,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:53:55,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 12:53:55,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:53:55,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 12:53:55,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 12:53:55,226 INFO L87 Difference]: Start difference. First operand 526 states and 751 transitions. Second operand has 30 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 18 states have internal predecessors, (60), 10 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2022-12-14 12:54:19,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:54:19,323 INFO L93 Difference]: Finished difference Result 1060 states and 1595 transitions. [2022-12-14 12:54:19,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 12:54:19,324 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 18 states have internal predecessors, (60), 10 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 126 [2022-12-14 12:54:19,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:54:19,327 INFO L225 Difference]: With dead ends: 1060 [2022-12-14 12:54:19,327 INFO L226 Difference]: Without dead ends: 694 [2022-12-14 12:54:19,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 64.8s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 12:54:19,328 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 139 mSDsluCounter, 4625 mSDsCounter, 0 mSdLazyCounter, 4090 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 4909 SdHoareTripleChecker+Invalid, 4100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 4090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:54:19,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 4909 Invalid, 4100 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 4090 Invalid, 0 Unknown, 0 Unchecked, 14.2s Time] [2022-12-14 12:54:19,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2022-12-14 12:54:20,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 571. [2022-12-14 12:54:20,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 378 states have (on average 1.380952380952381) internal successors, (522), 386 states have internal predecessors, (522), 146 states have call successors, (146), 48 states have call predecessors, (146), 46 states have return successors, (146), 138 states have call predecessors, (146), 145 states have call successors, (146) [2022-12-14 12:54:20,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 814 transitions. [2022-12-14 12:54:20,104 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 814 transitions. Word has length 126 [2022-12-14 12:54:20,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:54:20,104 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 814 transitions. [2022-12-14 12:54:20,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 18 states have internal predecessors, (60), 10 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2022-12-14 12:54:20,104 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 814 transitions. [2022-12-14 12:54:20,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-12-14 12:54:20,106 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:54:20,106 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:54:20,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 12:54:20,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:54:20,307 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:54:20,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:54:20,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1026882392, now seen corresponding path program 1 times [2022-12-14 12:54:20,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:54:20,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954578192] [2022-12-14 12:54:20,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:54:20,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:54:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:54:20,457 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 12:54:20,458 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:54:20,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954578192] [2022-12-14 12:54:20,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954578192] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:54:20,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078075795] [2022-12-14 12:54:20,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:54:20,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:54:20,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:54:20,459 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:54:20,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c92e34-ddb9-4559-ba1c-b9c514654e0f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 12:54:20,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:54:20,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:54:20,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:54:20,739 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 12:54:20,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:54:20,791 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 12:54:20,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078075795] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:54:20,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1477435253] [2022-12-14 12:54:20,793 INFO L159 IcfgInterpreter]: Started Sifa with 97 locations of interest [2022-12-14 12:54:20,793 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:54:20,794 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:54:20,794 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:54:20,794 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:55:09,344 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 12:55:09,630 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 267 for LOIs [2022-12-14 12:55:11,332 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-12-14 12:55:11,367 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 12:55:11,645 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 267 for LOIs [2022-12-14 12:55:14,347 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 277 for LOIs [2022-12-14 12:55:27,620 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 251 for LOIs [2022-12-14 12:55:28,287 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 251 for LOIs [2022-12-14 12:55:28,328 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 452 for LOIs [2022-12-14 12:55:28,893 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 249 for LOIs [2022-12-14 12:55:28,963 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 431 for LOIs [2022-12-14 12:55:29,544 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 473 for LOIs [2022-12-14 12:55:34,122 INFO L197 IcfgInterpreter]: Interpreting procedure isVerified with input of size 251 for LOIs [2022-12-14 12:55:34,162 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 254 for LOIs [2022-12-14 12:55:34,208 INFO L180 IcfgInterpreter]: Interpretation finished