./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6b54f48e5606af61de5b12570bc2e15a173e4036917e2e3bdec28cef1386724b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 03:43:39,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:43:39,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:43:39,380 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:43:39,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:43:39,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:43:39,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:43:39,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:43:39,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:43:39,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:43:39,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:43:39,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:43:39,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:43:39,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:43:39,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:43:39,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:43:39,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:43:39,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:43:39,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:43:39,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:43:39,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:43:39,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:43:39,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:43:39,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:43:39,413 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:43:39,414 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:43:39,414 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:43:39,415 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:43:39,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:43:39,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:43:39,417 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:43:39,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:43:39,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:43:39,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:43:39,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:43:39,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:43:39,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:43:39,433 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:43:39,433 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:43:39,434 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:43:39,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:43:39,438 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 03:43:39,482 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:43:39,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:43:39,483 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:43:39,483 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:43:39,484 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:43:39,484 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:43:39,484 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:43:39,484 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:43:39,485 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:43:39,485 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:43:39,486 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:43:39,486 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:43:39,486 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:43:39,487 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:43:39,487 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:43:39,487 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:43:39,487 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:43:39,487 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:43:39,488 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:43:39,488 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:43:39,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:43:39,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:43:39,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:43:39,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:43:39,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:43:39,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:43:39,490 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:43:39,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:43:39,490 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:43:39,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:43:39,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:43:39,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:43:39,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:43:39,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:43:39,492 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:43:39,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:43:39,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:43:39,492 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:43:39,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:43:39,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:43:39,493 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:43:39,494 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_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b54f48e5606af61de5b12570bc2e15a173e4036917e2e3bdec28cef1386724b [2022-11-03 03:43:39,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:43:39,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:43:39,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:43:39,858 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:43:39,858 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:43:39,860 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/email_spec27_product32.cil.c [2022-11-03 03:43:39,946 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/data/9ddfebf14/b8b2be79dcef4f3abe3bbb0cbfa7011a/FLAG256e4c7a0 [2022-11-03 03:43:40,623 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:43:40,624 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/sv-benchmarks/c/product-lines/email_spec27_product32.cil.c [2022-11-03 03:43:40,664 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/data/9ddfebf14/b8b2be79dcef4f3abe3bbb0cbfa7011a/FLAG256e4c7a0 [2022-11-03 03:43:40,844 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/data/9ddfebf14/b8b2be79dcef4f3abe3bbb0cbfa7011a [2022-11-03 03:43:40,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:43:40,848 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:43:40,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:43:40,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:43:40,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:43:40,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:43:40" (1/1) ... [2022-11-03 03:43:40,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f7c7ca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:40, skipping insertion in model container [2022-11-03 03:43:40,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:43:40" (1/1) ... [2022-11-03 03:43:40,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:43:40,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:43:41,274 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/sv-benchmarks/c/product-lines/email_spec27_product32.cil.c[27975,27988] [2022-11-03 03:43:41,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:43:41,595 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:43:41,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/sv-benchmarks/c/product-lines/email_spec27_product32.cil.c[27975,27988] [2022-11-03 03:43:41,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:43:41,751 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:43:41,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:41 WrapperNode [2022-11-03 03:43:41,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:43:41,753 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:43:41,753 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:43:41,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:43:41,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:41" (1/1) ... [2022-11-03 03:43:41,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:41" (1/1) ... [2022-11-03 03:43:41,880 INFO L138 Inliner]: procedures = 134, calls = 238, calls flagged for inlining = 60, calls inlined = 53, statements flattened = 994 [2022-11-03 03:43:41,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:43:41,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:43:41,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:43:41,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:43:41,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:41" (1/1) ... [2022-11-03 03:43:41,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:41" (1/1) ... [2022-11-03 03:43:41,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:41" (1/1) ... [2022-11-03 03:43:41,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:41" (1/1) ... [2022-11-03 03:43:41,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:41" (1/1) ... [2022-11-03 03:43:41,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:41" (1/1) ... [2022-11-03 03:43:41,997 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:41" (1/1) ... [2022-11-03 03:43:42,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:41" (1/1) ... [2022-11-03 03:43:42,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:43:42,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:43:42,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:43:42,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:43:42,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:41" (1/1) ... [2022-11-03 03:43:42,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:43:42,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:43:42,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:43:42,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:43:42,126 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-03 03:43:42,127 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-03 03:43:42,127 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-03 03:43:42,127 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-03 03:43:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-03 03:43:42,128 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-03 03:43:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-03 03:43:42,128 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-03 03:43:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-03 03:43:42,128 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-03 03:43:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-03 03:43:42,129 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-03 03:43:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-03 03:43:42,129 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-03 03:43:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-03 03:43:42,130 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-03 03:43:42,130 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-03 03:43:42,130 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-03 03:43:42,130 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-03 03:43:42,130 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-03 03:43:42,130 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-03 03:43:42,131 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-03 03:43:42,131 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-03 03:43:42,131 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-03 03:43:42,131 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-03 03:43:42,131 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-03 03:43:42,131 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-03 03:43:42,132 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-03 03:43:42,132 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-03 03:43:42,132 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-03 03:43:42,134 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-03 03:43:42,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:43:42,134 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-03 03:43:42,135 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-03 03:43:42,135 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-03 03:43:42,135 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-03 03:43:42,135 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-03 03:43:42,136 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-03 03:43:42,136 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-03 03:43:42,136 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-03 03:43:42,136 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-03 03:43:42,136 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-03 03:43:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-03 03:43:42,137 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-03 03:43:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2022-11-03 03:43:42,138 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2022-11-03 03:43:42,139 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-03 03:43:42,139 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-03 03:43:42,140 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-03 03:43:42,140 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-03 03:43:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-03 03:43:42,141 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-03 03:43:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-03 03:43:42,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-03 03:43:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-03 03:43:42,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-03 03:43:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:43:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-03 03:43:42,142 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-03 03:43:42,143 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-03 03:43:42,143 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-03 03:43:42,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:43:42,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:43:42,400 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:43:42,418 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:43:43,629 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:43:44,302 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:43:44,302 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 03:43:44,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:43:44 BoogieIcfgContainer [2022-11-03 03:43:44,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:43:44,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:43:44,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:43:44,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:43:44,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:43:40" (1/3) ... [2022-11-03 03:43:44,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b40f133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:43:44, skipping insertion in model container [2022-11-03 03:43:44,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:41" (2/3) ... [2022-11-03 03:43:44,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b40f133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:43:44, skipping insertion in model container [2022-11-03 03:43:44,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:43:44" (3/3) ... [2022-11-03 03:43:44,319 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product32.cil.c [2022-11-03 03:43:44,342 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:43:44,343 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:43:44,420 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:43:44,427 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;@11404a70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:43:44,428 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:43:44,433 INFO L276 IsEmpty]: Start isEmpty. Operand has 223 states, 126 states have (on average 1.3015873015873016) internal successors, (164), 131 states have internal predecessors, (164), 66 states have call successors, (66), 29 states have call predecessors, (66), 29 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2022-11-03 03:43:44,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-03 03:43:44,451 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:43:44,452 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:43:44,452 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:43:44,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:43:44,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1988615148, now seen corresponding path program 1 times [2022-11-03 03:43:44,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:43:44,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170404428] [2022-11-03 03:43:44,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:43:44,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:43:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:43:44,978 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 03:43:44,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:43:44,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170404428] [2022-11-03 03:43:44,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170404428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:43:44,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:43:44,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:43:44,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672296404] [2022-11-03 03:43:44,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:43:44,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:43:44,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:43:45,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:43:45,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:43:45,023 INFO L87 Difference]: Start difference. First operand has 223 states, 126 states have (on average 1.3015873015873016) internal successors, (164), 131 states have internal predecessors, (164), 66 states have call successors, (66), 29 states have call predecessors, (66), 29 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 03:43:45,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:43:45,182 INFO L93 Difference]: Finished difference Result 354 states and 463 transitions. [2022-11-03 03:43:45,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:43:45,185 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 99 [2022-11-03 03:43:45,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:43:45,198 INFO L225 Difference]: With dead ends: 354 [2022-11-03 03:43:45,198 INFO L226 Difference]: Without dead ends: 220 [2022-11-03 03:43:45,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:43:45,210 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:43:45,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 251 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:43:45,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-03 03:43:45,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2022-11-03 03:43:45,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 124 states have (on average 1.2741935483870968) internal successors, (158), 128 states have internal predecessors, (158), 66 states have call successors, (66), 29 states have call predecessors, (66), 29 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-11-03 03:43:45,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 289 transitions. [2022-11-03 03:43:45,308 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 289 transitions. Word has length 99 [2022-11-03 03:43:45,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:43:45,311 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 289 transitions. [2022-11-03 03:43:45,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 03:43:45,312 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 289 transitions. [2022-11-03 03:43:45,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-03 03:43:45,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:43:45,317 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:43:45,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:43:45,318 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:43:45,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:43:45,318 INFO L85 PathProgramCache]: Analyzing trace with hash 567149928, now seen corresponding path program 1 times [2022-11-03 03:43:45,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:43:45,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640885972] [2022-11-03 03:43:45,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:43:45,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:43:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:43:45,756 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 03:43:45,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:43:45,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640885972] [2022-11-03 03:43:45,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640885972] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:43:45,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:43:45,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:43:45,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876085463] [2022-11-03 03:43:45,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:43:45,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:43:45,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:43:45,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:43:45,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:43:45,766 INFO L87 Difference]: Start difference. First operand 220 states and 289 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 03:43:45,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:43:45,959 INFO L93 Difference]: Finished difference Result 350 states and 448 transitions. [2022-11-03 03:43:45,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:43:45,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 100 [2022-11-03 03:43:45,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:43:45,967 INFO L225 Difference]: With dead ends: 350 [2022-11-03 03:43:45,967 INFO L226 Difference]: Without dead ends: 222 [2022-11-03 03:43:45,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:43:45,977 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 0 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:43:45,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 495 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:43:45,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-11-03 03:43:46,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2022-11-03 03:43:46,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 126 states have (on average 1.2698412698412698) internal successors, (160), 130 states have internal predecessors, (160), 66 states have call successors, (66), 29 states have call predecessors, (66), 29 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-11-03 03:43:46,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 291 transitions. [2022-11-03 03:43:46,005 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 291 transitions. Word has length 100 [2022-11-03 03:43:46,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:43:46,006 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 291 transitions. [2022-11-03 03:43:46,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 03:43:46,007 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 291 transitions. [2022-11-03 03:43:46,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-03 03:43:46,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:43:46,011 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:43:46,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:43:46,012 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:43:46,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:43:46,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1728211291, now seen corresponding path program 1 times [2022-11-03 03:43:46,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:43:46,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213511028] [2022-11-03 03:43:46,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:43:46,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:43:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:43:46,135 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 03:43:46,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:43:46,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213511028] [2022-11-03 03:43:46,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213511028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:43:46,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:43:46,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:43:46,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918425055] [2022-11-03 03:43:46,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:43:46,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:43:46,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:43:46,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:43:46,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:43:46,140 INFO L87 Difference]: Start difference. First operand 222 states and 291 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 03:43:46,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:43:46,312 INFO L93 Difference]: Finished difference Result 479 states and 649 transitions. [2022-11-03 03:43:46,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:43:46,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 105 [2022-11-03 03:43:46,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:43:46,315 INFO L225 Difference]: With dead ends: 479 [2022-11-03 03:43:46,315 INFO L226 Difference]: Without dead ends: 275 [2022-11-03 03:43:46,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:43:46,317 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 59 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:43:46,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 516 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:43:46,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-11-03 03:43:46,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 270. [2022-11-03 03:43:46,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 160 states have (on average 1.34375) internal successors, (215), 164 states have internal predecessors, (215), 80 states have call successors, (80), 29 states have call predecessors, (80), 29 states have return successors, (79), 78 states have call predecessors, (79), 79 states have call successors, (79) [2022-11-03 03:43:46,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 374 transitions. [2022-11-03 03:43:46,356 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 374 transitions. Word has length 105 [2022-11-03 03:43:46,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:43:46,356 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 374 transitions. [2022-11-03 03:43:46,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 03:43:46,357 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 374 transitions. [2022-11-03 03:43:46,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-03 03:43:46,359 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:43:46,359 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:43:46,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:43:46,360 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:43:46,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:43:46,360 INFO L85 PathProgramCache]: Analyzing trace with hash 602295634, now seen corresponding path program 1 times [2022-11-03 03:43:46,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:43:46,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516270432] [2022-11-03 03:43:46,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:43:46,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:43:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:43:46,590 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 03:43:46,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:43:46,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516270432] [2022-11-03 03:43:46,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516270432] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:43:46,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253242167] [2022-11-03 03:43:46,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:43:46,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:43:46,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:43:46,593 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:43:46,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:43:47,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:43:47,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 1291 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:43:47,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:43:47,102 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 03:43:47,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:43:47,207 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 03:43:47,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253242167] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:43:47,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [106234332] [2022-11-03 03:43:47,240 INFO L159 IcfgInterpreter]: Started Sifa with 96 locations of interest [2022-11-03 03:43:47,240 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:43:47,247 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:43:47,252 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:43:47,253 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:44:30,060 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-03 03:44:30,359 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 267 for LOIs [2022-11-03 03:44:32,477 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 03:44:32,806 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 269 for LOIs [2022-11-03 03:44:36,947 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-11-03 03:44:36,993 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 229 for LOIs [2022-11-03 03:44:37,040 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 237 for LOIs [2022-11-03 03:44:37,084 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 254 for LOIs [2022-11-03 03:44:37,134 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:45:07,017 WARN L234 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 464 DAG size of output: 292 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:45:14,076 WARN L234 SmtUtils]: Spent 6.81s on a formula simplification. DAG size of input: 476 DAG size of output: 352 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:45:25,899 WARN L234 SmtUtils]: Spent 5.90s on a formula simplification. DAG size of input: 498 DAG size of output: 330 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:45:34,331 WARN L234 SmtUtils]: Spent 6.96s on a formula simplification. DAG size of input: 508 DAG size of output: 337 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:45:43,030 WARN L234 SmtUtils]: Spent 7.10s on a formula simplification. DAG size of input: 555 DAG size of output: 367 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:45:50,645 WARN L234 SmtUtils]: Spent 7.27s on a formula simplification. DAG size of input: 559 DAG size of output: 372 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:45:58,228 WARN L234 SmtUtils]: Spent 7.23s on a formula simplification. DAG size of input: 555 DAG size of output: 368 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:46:05,665 WARN L234 SmtUtils]: Spent 7.07s on a formula simplification. DAG size of input: 561 DAG size of output: 374 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:46:45,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [106234332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:46:45,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:46:45,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [4, 4, 4] total 46 [2022-11-03 03:46:45,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466174555] [2022-11-03 03:46:45,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:46:45,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-03 03:46:45,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:46:45,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-03 03:46:45,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1953, Unknown=0, NotChecked=0, Total=2070 [2022-11-03 03:46:45,615 INFO L87 Difference]: Start difference. First operand 270 states and 374 transitions. Second operand has 41 states, 27 states have (on average 2.111111111111111) internal successors, (57), 25 states have internal predecessors, (57), 13 states have call successors, (26), 9 states have call predecessors, (26), 7 states have return successors, (23), 11 states have call predecessors, (23), 11 states have call successors, (23) [2022-11-03 03:48:04,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:48:04,485 INFO L93 Difference]: Finished difference Result 705 states and 1067 transitions. [2022-11-03 03:48:04,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-03 03:48:04,486 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 27 states have (on average 2.111111111111111) internal successors, (57), 25 states have internal predecessors, (57), 13 states have call successors, (26), 9 states have call predecessors, (26), 7 states have return successors, (23), 11 states have call predecessors, (23), 11 states have call successors, (23) Word has length 117 [2022-11-03 03:48:04,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:48:04,489 INFO L225 Difference]: With dead ends: 705 [2022-11-03 03:48:04,490 INFO L226 Difference]: Without dead ends: 453 [2022-11-03 03:48:04,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 176.5s TimeCoverageRelationStatistics Valid=201, Invalid=2991, Unknown=0, NotChecked=0, Total=3192 [2022-11-03 03:48:04,493 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 407 mSDsluCounter, 6323 mSDsCounter, 0 mSdLazyCounter, 6732 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 6481 SdHoareTripleChecker+Invalid, 6771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 6732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:48:04,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 6481 Invalid, 6771 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [39 Valid, 6732 Invalid, 0 Unknown, 0 Unchecked, 30.0s Time] [2022-11-03 03:48:04,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-11-03 03:48:04,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 352. [2022-11-03 03:48:04,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 231 states have (on average 1.4155844155844155) internal successors, (327), 235 states have internal predecessors, (327), 86 states have call successors, (86), 36 states have call predecessors, (86), 34 states have return successors, (85), 82 states have call predecessors, (85), 85 states have call successors, (85) [2022-11-03 03:48:04,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 498 transitions. [2022-11-03 03:48:04,692 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 498 transitions. Word has length 117 [2022-11-03 03:48:04,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:48:04,693 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 498 transitions. [2022-11-03 03:48:04,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 27 states have (on average 2.111111111111111) internal successors, (57), 25 states have internal predecessors, (57), 13 states have call successors, (26), 9 states have call predecessors, (26), 7 states have return successors, (23), 11 states have call predecessors, (23), 11 states have call successors, (23) [2022-11-03 03:48:04,694 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 498 transitions. [2022-11-03 03:48:04,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-03 03:48:04,697 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:04,697 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:48:04,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:48:04,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:48:04,924 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:04,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:04,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1945523816, now seen corresponding path program 1 times [2022-11-03 03:48:04,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:04,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704224448] [2022-11-03 03:48:04,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:04,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:05,093 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-03 03:48:05,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:05,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704224448] [2022-11-03 03:48:05,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704224448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:48:05,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:48:05,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:48:05,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407564101] [2022-11-03 03:48:05,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:48:05,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:48:05,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:48:05,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:48:05,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:48:05,100 INFO L87 Difference]: Start difference. First operand 352 states and 498 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-03 03:48:05,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:48:05,537 INFO L93 Difference]: Finished difference Result 791 states and 1152 transitions. [2022-11-03 03:48:05,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:48:05,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 122 [2022-11-03 03:48:05,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:48:05,545 INFO L225 Difference]: With dead ends: 791 [2022-11-03 03:48:05,545 INFO L226 Difference]: Without dead ends: 477 [2022-11-03 03:48:05,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:48:05,550 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 57 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:48:05,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 519 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:48:05,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-11-03 03:48:05,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 470. [2022-11-03 03:48:05,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 318 states have (on average 1.449685534591195) internal successors, (461), 322 states have internal predecessors, (461), 117 states have call successors, (117), 36 states have call predecessors, (117), 34 states have return successors, (116), 113 states have call predecessors, (116), 116 states have call successors, (116) [2022-11-03 03:48:05,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 694 transitions. [2022-11-03 03:48:05,900 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 694 transitions. Word has length 122 [2022-11-03 03:48:05,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:48:05,901 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 694 transitions. [2022-11-03 03:48:05,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-03 03:48:05,901 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 694 transitions. [2022-11-03 03:48:05,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-03 03:48:05,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:05,910 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:48:05,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:48:05,910 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:05,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:05,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1174085287, now seen corresponding path program 1 times [2022-11-03 03:48:05,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:05,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480637979] [2022-11-03 03:48:05,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:05,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:06,174 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-03 03:48:06,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:06,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480637979] [2022-11-03 03:48:06,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480637979] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:48:06,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417365961] [2022-11-03 03:48:06,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:06,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:48:06,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:48:06,180 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:48:06,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:48:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:06,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 1312 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:48:06,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:48:06,620 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-03 03:48:06,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:48:06,734 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-03 03:48:06,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417365961] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:48:06,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1698110936] [2022-11-03 03:48:06,740 INFO L159 IcfgInterpreter]: Started Sifa with 100 locations of interest [2022-11-03 03:48:06,740 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:48:06,741 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:48:06,741 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:48:06,742 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:48:43,289 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-03 03:48:43,620 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 263 for LOIs [2022-11-03 03:48:45,480 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-11-03 03:48:45,796 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 263 for LOIs [2022-11-03 03:48:49,107 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 233 for LOIs [2022-11-03 03:48:49,151 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 225 for LOIs [2022-11-03 03:48:49,189 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 233 for LOIs [2022-11-03 03:48:49,227 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 250 for LOIs [2022-11-03 03:48:49,288 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:49:22,009 WARN L234 SmtUtils]: Spent 5.57s on a formula simplification. DAG size of input: 464 DAG size of output: 292 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:49:29,117 WARN L234 SmtUtils]: Spent 6.86s on a formula simplification. DAG size of input: 476 DAG size of output: 352 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:49:40,968 WARN L234 SmtUtils]: Spent 5.90s on a formula simplification. DAG size of input: 498 DAG size of output: 330 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:49:49,230 WARN L234 SmtUtils]: Spent 6.82s on a formula simplification. DAG size of input: 508 DAG size of output: 337 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:50:02,625 WARN L234 SmtUtils]: Spent 11.93s on a formula simplification. DAG size of input: 584 DAG size of output: 333 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:50:47,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1698110936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:50:47,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:50:47,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [4, 4, 4] total 50 [2022-11-03 03:50:47,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846228757] [2022-11-03 03:50:47,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:50:47,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-11-03 03:50:47,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:50:47,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-11-03 03:50:47,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=2299, Unknown=0, NotChecked=0, Total=2450 [2022-11-03 03:50:47,082 INFO L87 Difference]: Start difference. First operand 470 states and 694 transitions. Second operand has 45 states, 30 states have (on average 2.0) internal successors, (60), 28 states have internal predecessors, (60), 14 states have call successors, (27), 9 states have call predecessors, (27), 7 states have return successors, (24), 12 states have call predecessors, (24), 12 states have call successors, (24) [2022-11-03 03:52:01,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:52:01,403 INFO L93 Difference]: Finished difference Result 944 states and 1424 transitions. [2022-11-03 03:52:01,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-03 03:52:01,407 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 30 states have (on average 2.0) internal successors, (60), 28 states have internal predecessors, (60), 14 states have call successors, (27), 9 states have call predecessors, (27), 7 states have return successors, (24), 12 states have call predecessors, (24), 12 states have call successors, (24) Word has length 123 [2022-11-03 03:52:01,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:52:01,411 INFO L225 Difference]: With dead ends: 944 [2022-11-03 03:52:01,411 INFO L226 Difference]: Without dead ends: 592 [2022-11-03 03:52:01,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 766 ImplicationChecksByTransitivity, 162.6s TimeCoverageRelationStatistics Valid=242, Invalid=3418, Unknown=0, NotChecked=0, Total=3660 [2022-11-03 03:52:01,419 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 327 mSDsluCounter, 5698 mSDsCounter, 0 mSdLazyCounter, 6422 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 5792 SdHoareTripleChecker+Invalid, 6467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 6422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:52:01,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 5792 Invalid, 6467 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [45 Valid, 6422 Invalid, 0 Unknown, 0 Unchecked, 28.7s Time] [2022-11-03 03:52:01,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-11-03 03:52:01,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 498. [2022-11-03 03:52:01,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 343 states have (on average 1.4518950437317784) internal successors, (498), 348 states have internal predecessors, (498), 119 states have call successors, (119), 37 states have call predecessors, (119), 35 states have return successors, (118), 114 states have call predecessors, (118), 118 states have call successors, (118) [2022-11-03 03:52:01,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 735 transitions. [2022-11-03 03:52:01,729 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 735 transitions. Word has length 123 [2022-11-03 03:52:01,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:52:01,730 INFO L495 AbstractCegarLoop]: Abstraction has 498 states and 735 transitions. [2022-11-03 03:52:01,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 30 states have (on average 2.0) internal successors, (60), 28 states have internal predecessors, (60), 14 states have call successors, (27), 9 states have call predecessors, (27), 7 states have return successors, (24), 12 states have call predecessors, (24), 12 states have call successors, (24) [2022-11-03 03:52:01,730 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 735 transitions. [2022-11-03 03:52:01,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-03 03:52:01,733 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:52:01,733 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:52:01,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:52:01,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:52:01,950 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:52:01,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:52:01,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1009357379, now seen corresponding path program 1 times [2022-11-03 03:52:01,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:52:01,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071531826] [2022-11-03 03:52:01,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:01,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:52:01,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:02,124 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 03:52:02,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:52:02,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071531826] [2022-11-03 03:52:02,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071531826] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:52:02,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781950800] [2022-11-03 03:52:02,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:02,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:52:02,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:52:02,127 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:52:02,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4398072e-bb48-49cb-90d4-8147d30497f5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 03:52:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:02,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:52:02,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:52:02,533 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 03:52:02,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:52:02,640 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 03:52:02,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781950800] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:52:02,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1407129295] [2022-11-03 03:52:02,653 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2022-11-03 03:52:02,653 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:52:02,655 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:52:02,656 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:52:02,656 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:52:47,635 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-03 03:52:47,972 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 267 for LOIs [2022-11-03 03:52:49,852 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-11-03 03:52:49,891 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 03:52:50,208 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 267 for LOIs [2022-11-03 03:52:54,922 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 277 for LOIs [2022-11-03 03:53:16,677 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 251 for LOIs [2022-11-03 03:53:17,367 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 251 for LOIs [2022-11-03 03:53:17,413 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 452 for LOIs [2022-11-03 03:53:18,049 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 249 for LOIs [2022-11-03 03:53:18,128 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 431 for LOIs [2022-11-03 03:53:18,798 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 473 for LOIs [2022-11-03 03:53:20,786 INFO L197 IcfgInterpreter]: Interpreting procedure isVerified with input of size 251 for LOIs [2022-11-03 03:53:20,853 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 254 for LOIs [2022-11-03 03:53:20,900 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:53:34,641 WARN L234 SmtUtils]: Spent 5.81s on a formula simplification. DAG size of input: 444 DAG size of output: 244 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:53:40,768 WARN L234 SmtUtils]: Spent 5.95s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:53:53,951 WARN L234 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 464 DAG size of output: 292 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:54:00,707 WARN L234 SmtUtils]: Spent 6.49s on a formula simplification. DAG size of input: 476 DAG size of output: 352 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:54:12,153 WARN L234 SmtUtils]: Spent 5.66s on a formula simplification. DAG size of input: 498 DAG size of output: 330 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:54:20,218 WARN L234 SmtUtils]: Spent 6.60s on a formula simplification. DAG size of input: 508 DAG size of output: 337 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:54:32,737 WARN L234 SmtUtils]: Spent 7.27s on a formula simplification. DAG size of input: 556 DAG size of output: 377 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:54:42,500 WARN L234 SmtUtils]: Spent 9.21s on a formula simplification. DAG size of input: 560 DAG size of output: 430 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:54:52,570 WARN L234 SmtUtils]: Spent 9.49s on a formula simplification. DAG size of input: 556 DAG size of output: 426 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:55:02,781 WARN L234 SmtUtils]: Spent 9.62s on a formula simplification. DAG size of input: 562 DAG size of output: 432 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:55:19,644 WARN L234 SmtUtils]: Spent 8.37s on a formula simplification. DAG size of input: 473 DAG size of output: 279 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:55:48,279 WARN L234 SmtUtils]: Spent 7.71s on a formula simplification. DAG size of input: 452 DAG size of output: 269 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:55:58,189 WARN L234 SmtUtils]: Spent 7.71s on a formula simplification. DAG size of input: 478 DAG size of output: 285 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)