./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/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_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/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_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/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 c4f282cd51b7c35fd32c34f82b9fbd91d93e4244798e2a2790fa24fbe3843942 --- 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 15:24:16,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:24:16,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:24:16,460 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:24:16,460 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:24:16,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:24:16,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:24:16,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:24:16,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:24:16,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:24:16,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:24:16,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:24:16,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:24:16,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:24:16,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:24:16,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:24:16,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:24:16,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:24:16,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:24:16,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:24:16,472 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:24:16,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:24:16,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:24:16,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:24:16,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:24:16,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:24:16,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:24:16,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:24:16,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:24:16,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:24:16,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:24:16,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:24:16,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:24:16,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:24:16,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:24:16,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:24:16,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:24:16,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:24:16,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:24:16,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:24:16,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:24:16,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 15:24:16,496 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:24:16,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:24:16,496 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:24:16,496 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:24:16,497 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:24:16,497 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:24:16,497 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:24:16,497 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:24:16,497 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:24:16,497 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:24:16,497 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:24:16,497 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:24:16,497 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:24:16,497 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:24:16,498 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:24:16,498 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:24:16,498 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:24:16,498 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:24:16,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:24:16,498 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:24:16,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:24:16,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:24:16,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:24:16,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:24:16,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:24:16,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:24:16,499 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:24:16,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:24:16,499 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:24:16,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:24:16,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:24:16,500 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:24:16,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:24:16,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:24:16,500 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:24:16,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:24:16,500 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:24:16,500 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:24:16,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:24:16,500 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:24:16,500 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:24:16,501 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_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4f282cd51b7c35fd32c34f82b9fbd91d93e4244798e2a2790fa24fbe3843942 [2022-12-14 15:24:16,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:24:16,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:24:16,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:24:16,693 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:24:16,693 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:24:16,694 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec1_product35.cil.c [2022-12-14 15:24:19,312 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:24:19,578 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:24:19,578 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/sv-benchmarks/c/product-lines/email_spec1_product35.cil.c [2022-12-14 15:24:19,590 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/data/7d5d3aca3/7ccbb74d872042bda8a4c65ee177965a/FLAG89fb62a93 [2022-12-14 15:24:19,600 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/data/7d5d3aca3/7ccbb74d872042bda8a4c65ee177965a [2022-12-14 15:24:19,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:24:19,603 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:24:19,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:24:19,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:24:19,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:24:19,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:24:19" (1/1) ... [2022-12-14 15:24:19,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55abcfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:19, skipping insertion in model container [2022-12-14 15:24:19,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:24:19" (1/1) ... [2022-12-14 15:24:19,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:24:19,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:24:19,876 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:24:19,880 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:24:19,886 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:24:19,945 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:24:19,965 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:24:19,969 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:24:19,970 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:24:19,972 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:24:19,981 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:24:19,983 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:24:20,063 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_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/sv-benchmarks/c/product-lines/email_spec1_product35.cil.c[66161,66174] [2022-12-14 15:24:20,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:24:20,076 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:24:20,089 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:24:20,090 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:24:20,092 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:24:20,111 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:24:20,113 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:24:20,116 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:24:20,117 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:24:20,118 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:24:20,123 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:24:20,124 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:24:20,176 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_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/sv-benchmarks/c/product-lines/email_spec1_product35.cil.c[66161,66174] [2022-12-14 15:24:20,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:24:20,207 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:24:20,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:20 WrapperNode [2022-12-14 15:24:20,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:24:20,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:24:20,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:24:20,208 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:24:20,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:20" (1/1) ... [2022-12-14 15:24:20,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:20" (1/1) ... [2022-12-14 15:24:20,294 INFO L138 Inliner]: procedures = 137, calls = 247, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1148 [2022-12-14 15:24:20,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:24:20,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:24:20,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:24:20,295 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:24:20,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:20" (1/1) ... [2022-12-14 15:24:20,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:20" (1/1) ... [2022-12-14 15:24:20,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:20" (1/1) ... [2022-12-14 15:24:20,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:20" (1/1) ... [2022-12-14 15:24:20,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:20" (1/1) ... [2022-12-14 15:24:20,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:20" (1/1) ... [2022-12-14 15:24:20,344 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:20" (1/1) ... [2022-12-14 15:24:20,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:20" (1/1) ... [2022-12-14 15:24:20,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:24:20,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:24:20,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:24:20,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:24:20,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:20" (1/1) ... [2022-12-14 15:24:20,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:24:20,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:24:20,385 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:24:20,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:24:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 15:24:20,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 15:24:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 15:24:20,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 15:24:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 15:24:20,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 15:24:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 15:24:20,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 15:24:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 15:24:20,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 15:24:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 15:24:20,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 15:24:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-14 15:24:20,421 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-14 15:24:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 15:24:20,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 15:24:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 15:24:20,421 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 15:24:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 15:24:20,421 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 15:24:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 15:24:20,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 15:24:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 15:24:20,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 15:24:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 15:24:20,421 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 15:24:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 15:24:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 15:24:20,422 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 15:24:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-14 15:24:20,422 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-14 15:24:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 15:24:20,422 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 15:24:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:24:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 15:24:20,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 15:24:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 15:24:20,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 15:24:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 15:24:20,422 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 15:24:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 15:24:20,422 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 15:24:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 15:24:20,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 15:24:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 15:24:20,423 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 15:24:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 15:24:20,423 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 15:24:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 15:24:20,423 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 15:24:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 15:24:20,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 15:24:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 15:24:20,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 15:24:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 15:24:20,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 15:24:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:24:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 15:24:20,424 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 15:24:20,424 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 15:24:20,424 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 15:24:20,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:24:20,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:24:20,603 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:24:20,605 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:24:21,259 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:24:21,781 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:24:21,781 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 15:24:21,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:24:21 BoogieIcfgContainer [2022-12-14 15:24:21,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:24:21,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:24:21,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:24:21,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:24:21,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:24:19" (1/3) ... [2022-12-14 15:24:21,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183c2f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:24:21, skipping insertion in model container [2022-12-14 15:24:21,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:20" (2/3) ... [2022-12-14 15:24:21,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183c2f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:24:21, skipping insertion in model container [2022-12-14 15:24:21,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:24:21" (3/3) ... [2022-12-14 15:24:21,792 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product35.cil.c [2022-12-14 15:24:21,809 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:24:21,809 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 15:24:21,847 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:24:21,852 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;@52b28667, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:24:21,852 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 15:24:21,856 INFO L276 IsEmpty]: Start isEmpty. Operand has 242 states, 136 states have (on average 1.286764705882353) internal successors, (175), 141 states have internal predecessors, (175), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-12-14 15:24:21,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 15:24:21,865 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:24:21,865 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:24:21,866 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:24:21,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:24:21,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1507075242, now seen corresponding path program 1 times [2022-12-14 15:24:21,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:24:21,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100213210] [2022-12-14 15:24:21,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:21,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:24:22,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:22,146 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:24:22,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:24:22,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100213210] [2022-12-14 15:24:22,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100213210] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:24:22,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:24:22,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:24:22,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397735347] [2022-12-14 15:24:22,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:24:22,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 15:24:22,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:24:22,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 15:24:22,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 15:24:22,177 INFO L87 Difference]: Start difference. First operand has 242 states, 136 states have (on average 1.286764705882353) internal successors, (175), 141 states have internal predecessors, (175), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 15:24:22,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:24:22,322 INFO L93 Difference]: Finished difference Result 392 states and 521 transitions. [2022-12-14 15:24:22,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 15:24:22,325 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2022-12-14 15:24:22,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:24:22,337 INFO L225 Difference]: With dead ends: 392 [2022-12-14 15:24:22,337 INFO L226 Difference]: Without dead ends: 239 [2022-12-14 15:24:22,342 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 15:24:22,345 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:24:22,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 275 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:24:22,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2022-12-14 15:24:22,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2022-12-14 15:24:22,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 134 states have (on average 1.2611940298507462) internal successors, (169), 138 states have internal predecessors, (169), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2022-12-14 15:24:22,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 318 transitions. [2022-12-14 15:24:22,395 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 318 transitions. Word has length 71 [2022-12-14 15:24:22,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:24:22,396 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 318 transitions. [2022-12-14 15:24:22,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 15:24:22,396 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 318 transitions. [2022-12-14 15:24:22,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 15:24:22,400 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:24:22,400 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:24:22,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:24:22,401 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:24:22,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:24:22,401 INFO L85 PathProgramCache]: Analyzing trace with hash 2005131563, now seen corresponding path program 1 times [2022-12-14 15:24:22,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:24:22,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110207443] [2022-12-14 15:24:22,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:22,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:24:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:22,591 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:24:22,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:24:22,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110207443] [2022-12-14 15:24:22,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110207443] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:24:22,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:24:22,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:24:22,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693359300] [2022-12-14 15:24:22,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:24:22,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:24:22,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:24:22,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:24:22,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:24:22,595 INFO L87 Difference]: Start difference. First operand 239 states and 318 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 15:24:22,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:24:22,728 INFO L93 Difference]: Finished difference Result 388 states and 506 transitions. [2022-12-14 15:24:22,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:24:22,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2022-12-14 15:24:22,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:24:22,732 INFO L225 Difference]: With dead ends: 388 [2022-12-14 15:24:22,732 INFO L226 Difference]: Without dead ends: 241 [2022-12-14 15:24:22,733 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 15:24:22,733 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 0 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:24:22,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 543 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:24:22,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-12-14 15:24:22,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2022-12-14 15:24:22,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 136 states have (on average 1.2573529411764706) internal successors, (171), 140 states have internal predecessors, (171), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2022-12-14 15:24:22,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 320 transitions. [2022-12-14 15:24:22,748 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 320 transitions. Word has length 72 [2022-12-14 15:24:22,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:24:22,748 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 320 transitions. [2022-12-14 15:24:22,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 15:24:22,748 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 320 transitions. [2022-12-14 15:24:22,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-14 15:24:22,750 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:24:22,750 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:24:22,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:24:22,751 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:24:22,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:24:22,751 INFO L85 PathProgramCache]: Analyzing trace with hash 847730877, now seen corresponding path program 1 times [2022-12-14 15:24:22,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:24:22,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088779809] [2022-12-14 15:24:22,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:22,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:24:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:22,854 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:24:22,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:24:22,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088779809] [2022-12-14 15:24:22,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088779809] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:24:22,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:24:22,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:24:22,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604095595] [2022-12-14 15:24:22,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:24:22,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:24:22,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:24:22,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:24:22,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:24:22,857 INFO L87 Difference]: Start difference. First operand 241 states and 320 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 15:24:22,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:24:22,978 INFO L93 Difference]: Finished difference Result 517 states and 707 transitions. [2022-12-14 15:24:22,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:24:22,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2022-12-14 15:24:22,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:24:22,982 INFO L225 Difference]: With dead ends: 517 [2022-12-14 15:24:22,982 INFO L226 Difference]: Without dead ends: 294 [2022-12-14 15:24:22,984 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 15:24:22,985 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 59 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:24:22,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 557 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:24:22,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-12-14 15:24:23,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 289. [2022-12-14 15:24:23,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 170 states have (on average 1.3294117647058823) internal successors, (226), 174 states have internal predecessors, (226), 89 states have call successors, (89), 29 states have call predecessors, (89), 29 states have return successors, (88), 87 states have call predecessors, (88), 88 states have call successors, (88) [2022-12-14 15:24:23,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 403 transitions. [2022-12-14 15:24:23,018 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 403 transitions. Word has length 77 [2022-12-14 15:24:23,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:24:23,019 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 403 transitions. [2022-12-14 15:24:23,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 15:24:23,019 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 403 transitions. [2022-12-14 15:24:23,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 15:24:23,024 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:24:23,024 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:24:23,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 15:24:23,025 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:24:23,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:24:23,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1559297620, now seen corresponding path program 1 times [2022-12-14 15:24:23,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:24:23,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24584216] [2022-12-14 15:24:23,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:23,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:24:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:23,210 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:24:23,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:24:23,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24584216] [2022-12-14 15:24:23,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24584216] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:24:23,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081241872] [2022-12-14 15:24:23,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:23,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:24:23,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:24:23,212 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:24:23,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:24:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:23,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:24:23,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:24:23,514 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:24:23,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:24:23,573 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:24:23,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081241872] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:24:23,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1586426764] [2022-12-14 15:24:23,592 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-12-14 15:24:23,592 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:24:23,595 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:24:23,600 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:24:23,601 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:24:57,157 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 15:24:57,479 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 273 for LOIs [2022-12-14 15:24:59,614 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 241 for LOIs [2022-12-14 15:24:59,661 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 15:24:59,980 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 275 for LOIs [2022-12-14 15:25:03,328 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 231 for LOIs [2022-12-14 15:25:03,369 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 283 for LOIs [2022-12-14 15:25:09,255 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 253 for LOIs [2022-12-14 15:25:09,339 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 250 for LOIs [2022-12-14 15:25:09,387 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 477 for LOIs [2022-12-14 15:25:14,656 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 258 for LOIs [2022-12-14 15:25:14,709 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:25:56,378 WARN L233 SmtUtils]: Spent 10.43s on a formula simplification. DAG size of input: 591 DAG size of output: 466 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:26:53,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1586426764] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:26:53,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:26:53,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [4, 4, 4] total 59 [2022-12-14 15:26:53,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286900580] [2022-12-14 15:26:53,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:26:53,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-12-14 15:26:53,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:26:53,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-12-14 15:26:53,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=3272, Unknown=0, NotChecked=0, Total=3422 [2022-12-14 15:26:53,709 INFO L87 Difference]: Start difference. First operand 289 states and 403 transitions. Second operand has 54 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 15:27:03,980 WARN L233 SmtUtils]: Spent 7.54s on a formula simplification. DAG size of input: 479 DAG size of output: 438 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:27:24,548 WARN L233 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 577 DAG size of output: 429 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:27:32,164 WARN L233 SmtUtils]: Spent 6.57s on a formula simplification. DAG size of input: 590 DAG size of output: 429 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:28:12,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:28:12,590 INFO L93 Difference]: Finished difference Result 724 states and 1076 transitions. [2022-12-14 15:28:12,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-12-14 15:28:12,591 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 78 [2022-12-14 15:28:12,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:28:12,594 INFO L225 Difference]: With dead ends: 724 [2022-12-14 15:28:12,594 INFO L226 Difference]: Without dead ends: 453 [2022-12-14 15:28:12,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 177 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1090 ImplicationChecksByTransitivity, 145.7s TimeCoverageRelationStatistics Valid=243, Invalid=5013, Unknown=0, NotChecked=0, Total=5256 [2022-12-14 15:28:12,596 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 225 mSDsluCounter, 8055 mSDsCounter, 0 mSdLazyCounter, 10024 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 8366 SdHoareTripleChecker+Invalid, 10056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 10024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.6s IncrementalHoareTripleChecker+Time [2022-12-14 15:28:12,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 8366 Invalid, 10056 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [32 Valid, 10024 Invalid, 0 Unknown, 0 Unchecked, 31.6s Time] [2022-12-14 15:28:12,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-12-14 15:28:12,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 372. [2022-12-14 15:28:12,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 236 states have (on average 1.3389830508474576) internal successors, (316), 240 states have internal predecessors, (316), 99 states have call successors, (99), 39 states have call predecessors, (99), 36 states have return successors, (98), 94 states have call predecessors, (98), 98 states have call successors, (98) [2022-12-14 15:28:12,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 513 transitions. [2022-12-14 15:28:12,728 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 513 transitions. Word has length 78 [2022-12-14 15:28:12,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:28:12,728 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 513 transitions. [2022-12-14 15:28:12,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 15:28:12,729 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 513 transitions. [2022-12-14 15:28:12,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 15:28:12,730 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:28:12,731 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:28:12,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:28:12,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:28:12,931 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:28:12,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:28:12,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1058526754, now seen corresponding path program 1 times [2022-12-14 15:28:12,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:28:12,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776831347] [2022-12-14 15:28:12,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:28:12,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:28:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:28:12,992 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 15:28:12,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:28:12,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776831347] [2022-12-14 15:28:12,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776831347] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:28:12,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:28:12,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:28:12,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042700624] [2022-12-14 15:28:12,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:28:12,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:28:12,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:28:12,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:28:12,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:28:12,994 INFO L87 Difference]: Start difference. First operand 372 states and 513 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 15:28:13,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:28:13,389 INFO L93 Difference]: Finished difference Result 821 states and 1167 transitions. [2022-12-14 15:28:13,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:28:13,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 83 [2022-12-14 15:28:13,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:28:13,392 INFO L225 Difference]: With dead ends: 821 [2022-12-14 15:28:13,392 INFO L226 Difference]: Without dead ends: 496 [2022-12-14 15:28:13,393 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 15:28:13,394 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 57 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 575 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 15:28:13,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 575 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:28:13,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-12-14 15:28:13,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 489. [2022-12-14 15:28:13,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 322 states have (on average 1.3944099378881987) internal successors, (449), 326 states have internal predecessors, (449), 130 states have call successors, (130), 39 states have call predecessors, (130), 36 states have return successors, (129), 125 states have call predecessors, (129), 129 states have call successors, (129) [2022-12-14 15:28:13,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 708 transitions. [2022-12-14 15:28:13,558 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 708 transitions. Word has length 83 [2022-12-14 15:28:13,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:28:13,558 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 708 transitions. [2022-12-14 15:28:13,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 15:28:13,559 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 708 transitions. [2022-12-14 15:28:13,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 15:28:13,560 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:28:13,560 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:28:13,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 15:28:13,561 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:28:13,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:28:13,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1845767664, now seen corresponding path program 1 times [2022-12-14 15:28:13,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:28:13,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48642007] [2022-12-14 15:28:13,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:28:13,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:28:13,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:28:13,644 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 15:28:13,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:28:13,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48642007] [2022-12-14 15:28:13,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48642007] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:28:13,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83600288] [2022-12-14 15:28:13,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:28:13,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:28:13,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:28:13,646 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:28:13,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 15:28:13,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:28:13,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:28:13,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:28:13,880 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 15:28:13,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:28:13,927 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 15:28:13,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83600288] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:28:13,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [307958472] [2022-12-14 15:28:13,931 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 15:28:13,931 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:28:13,932 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:28:13,932 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:28:13,932 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:28:58,693 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 15:28:59,020 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-12-14 15:28:59,349 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:29:40,622 WARN L233 SmtUtils]: Spent 7.97s on a formula simplification. DAG size of input: 583 DAG size of output: 398 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:29:54,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [307958472] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:29:54,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:29:54,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 15:29:54,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409256846] [2022-12-14 15:29:54,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:29:54,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 15:29:54,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:29:54,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 15:29:54,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-12-14 15:29:54,851 INFO L87 Difference]: Start difference. First operand 489 states and 708 transitions. Second operand has 25 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2022-12-14 15:30:02,170 WARN L233 SmtUtils]: Spent 6.36s on a formula simplification. DAG size of input: 508 DAG size of output: 402 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:30:29,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:30:29,982 INFO L93 Difference]: Finished difference Result 937 states and 1399 transitions. [2022-12-14 15:30:29,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 15:30:29,983 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 84 [2022-12-14 15:30:29,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:30:29,985 INFO L225 Difference]: With dead ends: 937 [2022-12-14 15:30:29,985 INFO L226 Difference]: Without dead ends: 566 [2022-12-14 15:30:29,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 224 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 83.8s TimeCoverageRelationStatistics Valid=208, Invalid=1198, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 15:30:29,987 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 140 mSDsluCounter, 3703 mSDsCounter, 0 mSdLazyCounter, 2115 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 3983 SdHoareTripleChecker+Invalid, 2131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-12-14 15:30:29,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 3983 Invalid, 2131 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 2115 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-12-14 15:30:29,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2022-12-14 15:30:30,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 501. [2022-12-14 15:30:30,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 332 states have (on average 1.394578313253012) internal successors, (463), 336 states have internal predecessors, (463), 131 states have call successors, (131), 40 states have call predecessors, (131), 37 states have return successors, (130), 126 states have call predecessors, (130), 130 states have call successors, (130) [2022-12-14 15:30:30,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 724 transitions. [2022-12-14 15:30:30,177 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 724 transitions. Word has length 84 [2022-12-14 15:30:30,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:30:30,177 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 724 transitions. [2022-12-14 15:30:30,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2022-12-14 15:30:30,177 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 724 transitions. [2022-12-14 15:30:30,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 15:30:30,179 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:30:30,179 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:30:30,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 15:30:30,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:30:30,380 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:30:30,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:30:30,382 INFO L85 PathProgramCache]: Analyzing trace with hash -729153548, now seen corresponding path program 1 times [2022-12-14 15:30:30,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:30:30,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2347662] [2022-12-14 15:30:30,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:30:30,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:30:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:30:30,507 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:30:30,507 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:30:30,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2347662] [2022-12-14 15:30:30,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2347662] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:30:30,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689147032] [2022-12-14 15:30:30,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:30:30,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:30:30,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:30:30,508 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:30:30,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 15:30:30,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:30:30,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:30:30,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:30:30,720 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:30:30,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:30:30,767 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:30:30,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689147032] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:30:30,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1300553865] [2022-12-14 15:30:30,771 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2022-12-14 15:30:30,771 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:30:30,771 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:30:30,772 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:30:30,772 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:31:09,590 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 15:31:09,908 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-12-14 15:31:09,978 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 422 for LOIs [2022-12-14 15:31:10,276 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 222 for LOIs [2022-12-14 15:31:10,344 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 15:31:10,668 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:31:43,658 WARN L233 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 512 DAG size of output: 384 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:31:52,133 WARN L233 SmtUtils]: Spent 8.22s on a formula simplification. DAG size of input: 623 DAG size of output: 436 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:32:07,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1300553865] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:32:07,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:32:07,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-12-14 15:32:07,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477331137] [2022-12-14 15:32:07,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:32:07,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 15:32:07,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:32:07,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 15:32:07,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1018, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 15:32:07,586 INFO L87 Difference]: Start difference. First operand 501 states and 724 transitions. Second operand has 29 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 17 states have internal predecessors, (44), 9 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 9 states have call successors, (17) [2022-12-14 15:32:40,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:32:40,664 INFO L93 Difference]: Finished difference Result 958 states and 1430 transitions. [2022-12-14 15:32:40,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 15:32:40,665 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 17 states have internal predecessors, (44), 9 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 9 states have call successors, (17) Word has length 87 [2022-12-14 15:32:40,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:32:40,668 INFO L225 Difference]: With dead ends: 958 [2022-12-14 15:32:40,668 INFO L226 Difference]: Without dead ends: 587 [2022-12-14 15:32:40,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 228 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 77.3s TimeCoverageRelationStatistics Valid=162, Invalid=1478, Unknown=0, NotChecked=0, Total=1640 [2022-12-14 15:32:40,670 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 126 mSDsluCounter, 4336 mSDsCounter, 0 mSdLazyCounter, 4013 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 4616 SdHoareTripleChecker+Invalid, 4028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 4013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:32:40,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 4616 Invalid, 4028 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 4013 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2022-12-14 15:32:40,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2022-12-14 15:32:40,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 537. [2022-12-14 15:32:40,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 362 states have (on average 1.3950276243093922) internal successors, (505), 366 states have internal predecessors, (505), 134 states have call successors, (134), 43 states have call predecessors, (134), 40 states have return successors, (133), 129 states have call predecessors, (133), 133 states have call successors, (133) [2022-12-14 15:32:40,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 772 transitions. [2022-12-14 15:32:40,907 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 772 transitions. Word has length 87 [2022-12-14 15:32:40,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:32:40,907 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 772 transitions. [2022-12-14 15:32:40,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 17 states have internal predecessors, (44), 9 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 9 states have call successors, (17) [2022-12-14 15:32:40,907 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 772 transitions. [2022-12-14 15:32:40,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 15:32:40,909 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:32:40,909 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:32:40,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 15:32:41,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 15:32:41,110 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:32:41,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:32:41,111 INFO L85 PathProgramCache]: Analyzing trace with hash -500902902, now seen corresponding path program 1 times [2022-12-14 15:32:41,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:32:41,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911379972] [2022-12-14 15:32:41,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:32:41,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:32:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:32:41,201 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:32:41,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:32:41,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911379972] [2022-12-14 15:32:41,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911379972] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:32:41,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530962799] [2022-12-14 15:32:41,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:32:41,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:32:41,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:32:41,203 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:32:41,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 15:32:41,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:32:41,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 1137 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:32:41,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:32:41,431 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:32:41,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:32:41,472 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:32:41,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530962799] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:32:41,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1501260229] [2022-12-14 15:32:41,474 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2022-12-14 15:32:41,474 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:32:41,474 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:32:41,474 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:32:41,475 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:33:33,601 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 15:33:33,916 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 273 for LOIs [2022-12-14 15:33:35,985 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 241 for LOIs [2022-12-14 15:33:36,028 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 15:33:36,344 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 273 for LOIs [2022-12-14 15:33:39,457 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 231 for LOIs [2022-12-14 15:33:39,499 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 283 for LOIs [2022-12-14 15:33:46,138 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 253 for LOIs [2022-12-14 15:33:46,215 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 250 for LOIs [2022-12-14 15:33:46,261 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 477 for LOIs [2022-12-14 15:33:51,547 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 258 for LOIs [2022-12-14 15:33:51,599 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:35:42,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1501260229] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:35:42,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:35:42,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [61] imperfect sequences [4, 4, 4] total 67 [2022-12-14 15:35:42,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583387304] [2022-12-14 15:35:42,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:35:42,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-12-14 15:35:42,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:35:42,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-12-14 15:35:42,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=4220, Unknown=0, NotChecked=0, Total=4422 [2022-12-14 15:35:42,817 INFO L87 Difference]: Start difference. First operand 537 states and 772 transitions. Second operand has 62 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 40 states have internal predecessors, (49), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 15:37:27,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:37:27,146 INFO L93 Difference]: Finished difference Result 1043 states and 1531 transitions. [2022-12-14 15:37:27,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-12-14 15:37:27,147 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 40 states have internal predecessors, (49), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 86 [2022-12-14 15:37:27,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:37:27,150 INFO L225 Difference]: With dead ends: 1043 [2022-12-14 15:37:27,150 INFO L226 Difference]: Without dead ends: 672 [2022-12-14 15:37:27,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 193 SyntacticMatches, 2 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1893 ImplicationChecksByTransitivity, 186.9s TimeCoverageRelationStatistics Valid=540, Invalid=7832, Unknown=0, NotChecked=0, Total=8372 [2022-12-14 15:37:27,154 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 357 mSDsluCounter, 7440 mSDsCounter, 0 mSdLazyCounter, 9203 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 7730 SdHoareTripleChecker+Invalid, 9240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 9203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.8s IncrementalHoareTripleChecker+Time [2022-12-14 15:37:27,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 7730 Invalid, 9240 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [37 Valid, 9203 Invalid, 0 Unknown, 0 Unchecked, 27.8s Time] [2022-12-14 15:37:27,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2022-12-14 15:37:27,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 550. [2022-12-14 15:37:27,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 375 states have (on average 1.4) internal successors, (525), 379 states have internal predecessors, (525), 134 states have call successors, (134), 43 states have call predecessors, (134), 40 states have return successors, (133), 129 states have call predecessors, (133), 133 states have call successors, (133) [2022-12-14 15:37:27,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 792 transitions. [2022-12-14 15:37:27,548 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 792 transitions. Word has length 86 [2022-12-14 15:37:27,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:37:27,549 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 792 transitions. [2022-12-14 15:37:27,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 40 states have internal predecessors, (49), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 15:37:27,549 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 792 transitions. [2022-12-14 15:37:27,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-14 15:37:27,550 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:37:27,550 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:37:27,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 15:37:27,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 15:37:27,752 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:37:27,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:37:27,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1783800131, now seen corresponding path program 1 times [2022-12-14 15:37:27,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:37:27,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22399868] [2022-12-14 15:37:27,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:37:27,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:37:27,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:37:27,881 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 15:37:27,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:37:27,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22399868] [2022-12-14 15:37:27,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22399868] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:37:27,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247888611] [2022-12-14 15:37:27,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:37:27,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:37:27,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:37:27,882 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:37:27,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc43111-0cc3-4bd9-b5f2-6febf7253c12/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 15:37:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:37:28,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 15:37:28,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:37:28,089 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 15:37:28,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:37:28,131 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 15:37:28,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247888611] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:37:28,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1896242480] [2022-12-14 15:37:28,134 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 15:37:28,134 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:37:28,134 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:37:28,134 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:37:28,134 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs