./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product20.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS --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 d4216ddf014ff953368f9c10444517e5ad475a960f2c91abb81cda95e6b2b3bf --- 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-8393723 [2022-11-19 06:53:27,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:53:27,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:53:27,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:53:27,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:53:27,402 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:53:27,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:53:27,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:53:27,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:53:27,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:53:27,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:53:27,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:53:27,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:53:27,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:53:27,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:53:27,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:53:27,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:53:27,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:53:27,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:53:27,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:53:27,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:53:27,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:53:27,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:53:27,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:53:27,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:53:27,479 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:53:27,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:53:27,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:53:27,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:53:27,485 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:53:27,485 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:53:27,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:53:27,487 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:53:27,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:53:27,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:53:27,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:53:27,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:53:27,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:53:27,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:53:27,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:53:27,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:53:27,495 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 06:53:27,522 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:53:27,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:53:27,523 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:53:27,523 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:53:27,524 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:53:27,524 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:53:27,524 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:53:27,525 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:53:27,525 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:53:27,525 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:53:27,525 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:53:27,526 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:53:27,526 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:53:27,526 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:53:27,527 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:53:27,527 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:53:27,527 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:53:27,528 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:53:27,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:53:27,529 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:53:27,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:53:27,529 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:53:27,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:53:27,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:53:27,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:53:27,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:53:27,531 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:53:27,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:53:27,531 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:53:27,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:53:27,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:53:27,532 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:53:27,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:53:27,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:53:27,533 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:53:27,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:53:27,534 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:53:27,534 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:53:27,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:53:27,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:53:27,535 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:53:27,535 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_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4216ddf014ff953368f9c10444517e5ad475a960f2c91abb81cda95e6b2b3bf [2022-11-19 06:53:27,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:53:27,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:53:27,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:53:27,963 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:53:27,964 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:53:27,966 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/email_spec6_product20.cil.c [2022-11-19 06:53:28,060 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/data/ae46bb339/cea12e8c7ec548cabc31f589d1959054/FLAG0fc46c46d [2022-11-19 06:53:28,834 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:53:28,834 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/sv-benchmarks/c/product-lines/email_spec6_product20.cil.c [2022-11-19 06:53:28,882 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/data/ae46bb339/cea12e8c7ec548cabc31f589d1959054/FLAG0fc46c46d [2022-11-19 06:53:29,059 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/data/ae46bb339/cea12e8c7ec548cabc31f589d1959054 [2022-11-19 06:53:29,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:53:29,063 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:53:29,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:53:29,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:53:29,073 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:53:29,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:53:29" (1/1) ... [2022-11-19 06:53:29,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43709601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:29, skipping insertion in model container [2022-11-19 06:53:29,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:53:29" (1/1) ... [2022-11-19 06:53:29,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:53:29,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:53:29,854 WARN L234 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_177e6390-c3c3-49b2-aab7-6f79428857d8/sv-benchmarks/c/product-lines/email_spec6_product20.cil.c[56376,56389] [2022-11-19 06:53:29,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:53:29,909 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:53:30,024 WARN L234 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_177e6390-c3c3-49b2-aab7-6f79428857d8/sv-benchmarks/c/product-lines/email_spec6_product20.cil.c[56376,56389] [2022-11-19 06:53:30,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:53:30,090 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:53:30,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:30 WrapperNode [2022-11-19 06:53:30,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:53:30,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:53:30,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:53:30,093 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:53:30,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:30" (1/1) ... [2022-11-19 06:53:30,136 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:30" (1/1) ... [2022-11-19 06:53:30,212 INFO L138 Inliner]: procedures = 129, calls = 222, calls flagged for inlining = 54, calls inlined = 47, statements flattened = 942 [2022-11-19 06:53:30,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:53:30,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:53:30,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:53:30,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:53:30,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:30" (1/1) ... [2022-11-19 06:53:30,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:30" (1/1) ... [2022-11-19 06:53:30,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:30" (1/1) ... [2022-11-19 06:53:30,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:30" (1/1) ... [2022-11-19 06:53:30,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:30" (1/1) ... [2022-11-19 06:53:30,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:30" (1/1) ... [2022-11-19 06:53:30,280 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:30" (1/1) ... [2022-11-19 06:53:30,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:30" (1/1) ... [2022-11-19 06:53:30,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:53:30,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:53:30,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:53:30,296 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:53:30,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:30" (1/1) ... [2022-11-19 06:53:30,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:53:30,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:53:30,338 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:53:30,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:53:30,389 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-19 06:53:30,390 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-19 06:53:30,390 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-19 06:53:30,390 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-19 06:53:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-19 06:53:30,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-19 06:53:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-19 06:53:30,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-19 06:53:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-19 06:53:30,392 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-19 06:53:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-19 06:53:30,392 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-19 06:53:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-19 06:53:30,393 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-19 06:53:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-19 06:53:30,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-19 06:53:30,394 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-19 06:53:30,394 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-19 06:53:30,394 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-19 06:53:30,394 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-19 06:53:30,395 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-19 06:53:30,395 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-19 06:53:30,395 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-19 06:53:30,395 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-19 06:53:30,396 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-19 06:53:30,396 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-19 06:53:30,396 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-19 06:53:30,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:53:30,397 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-19 06:53:30,397 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-19 06:53:30,397 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-19 06:53:30,397 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-19 06:53:30,397 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-19 06:53:30,398 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-19 06:53:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-19 06:53:30,398 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-19 06:53:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-19 06:53:30,399 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-19 06:53:30,399 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-19 06:53:30,399 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-19 06:53:30,399 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-19 06:53:30,400 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-19 06:53:30,400 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-19 06:53:30,400 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-19 06:53:30,400 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-19 06:53:30,401 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-19 06:53:30,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:53:30,401 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-19 06:53:30,401 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-19 06:53:30,402 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-19 06:53:30,402 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-19 06:53:30,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:53:30,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:53:30,758 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:53:30,761 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:53:32,044 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:53:32,894 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:53:32,895 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 06:53:32,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:53:32 BoogieIcfgContainer [2022-11-19 06:53:32,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:53:32,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:53:32,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:53:32,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:53:32,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:53:29" (1/3) ... [2022-11-19 06:53:32,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c85dce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:53:32, skipping insertion in model container [2022-11-19 06:53:32,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:30" (2/3) ... [2022-11-19 06:53:32,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c85dce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:53:32, skipping insertion in model container [2022-11-19 06:53:32,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:53:32" (3/3) ... [2022-11-19 06:53:32,911 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product20.cil.c [2022-11-19 06:53:32,934 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:53:32,934 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:53:33,002 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:53:33,011 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;@5cdfb321, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:53:33,012 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:53:33,018 INFO L276 IsEmpty]: Start isEmpty. Operand has 193 states, 109 states have (on average 1.3211009174311927) internal successors, (144), 114 states have internal predecessors, (144), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2022-11-19 06:53:33,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-19 06:53:33,036 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:53:33,037 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:53:33,038 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:53:33,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:53:33,046 INFO L85 PathProgramCache]: Analyzing trace with hash -984611720, now seen corresponding path program 1 times [2022-11-19 06:53:33,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:53:33,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535605575] [2022-11-19 06:53:33,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:33,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:53:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:33,660 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-19 06:53:33,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:53:33,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535605575] [2022-11-19 06:53:33,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535605575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:53:33,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:53:33,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:53:33,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456141515] [2022-11-19 06:53:33,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:53:33,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 06:53:33,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:53:33,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 06:53:33,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:53:33,727 INFO L87 Difference]: Start difference. First operand has 193 states, 109 states have (on average 1.3211009174311927) internal successors, (144), 114 states have internal predecessors, (144), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-19 06:53:33,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:53:33,968 INFO L93 Difference]: Finished difference Result 294 states and 391 transitions. [2022-11-19 06:53:33,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 06:53:33,971 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 79 [2022-11-19 06:53:33,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:53:33,993 INFO L225 Difference]: With dead ends: 294 [2022-11-19 06:53:33,993 INFO L226 Difference]: Without dead ends: 190 [2022-11-19 06:53:33,998 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 [2022-11-19 06:53:34,003 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:53:34,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 221 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:53:34,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-11-19 06:53:34,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2022-11-19 06:53:34,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 107 states have (on average 1.2897196261682242) internal successors, (138), 111 states have internal predecessors, (138), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-11-19 06:53:34,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 253 transitions. [2022-11-19 06:53:34,085 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 253 transitions. Word has length 79 [2022-11-19 06:53:34,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:53:34,087 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 253 transitions. [2022-11-19 06:53:34,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-19 06:53:34,088 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 253 transitions. [2022-11-19 06:53:34,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-19 06:53:34,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:53:34,094 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:53:34,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:53:34,095 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:53:34,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:53:34,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1316142753, now seen corresponding path program 1 times [2022-11-19 06:53:34,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:53:34,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321692091] [2022-11-19 06:53:34,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:34,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:53:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:34,451 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-19 06:53:34,451 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:53:34,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321692091] [2022-11-19 06:53:34,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321692091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:53:34,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:53:34,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:53:34,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874560526] [2022-11-19 06:53:34,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:53:34,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:53:34,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:53:34,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:53:34,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:53:34,456 INFO L87 Difference]: Start difference. First operand 190 states and 253 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-19 06:53:34,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:53:34,646 INFO L93 Difference]: Finished difference Result 290 states and 376 transitions. [2022-11-19 06:53:34,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:53:34,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 80 [2022-11-19 06:53:34,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:53:34,650 INFO L225 Difference]: With dead ends: 290 [2022-11-19 06:53:34,654 INFO L226 Difference]: Without dead ends: 192 [2022-11-19 06:53:34,659 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 [2022-11-19 06:53:34,663 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 0 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:53:34,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 435 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:53:34,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-11-19 06:53:34,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2022-11-19 06:53:34,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 109 states have (on average 1.2844036697247707) internal successors, (140), 113 states have internal predecessors, (140), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-11-19 06:53:34,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 255 transitions. [2022-11-19 06:53:34,710 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 255 transitions. Word has length 80 [2022-11-19 06:53:34,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:53:34,712 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 255 transitions. [2022-11-19 06:53:34,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-19 06:53:34,713 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 255 transitions. [2022-11-19 06:53:34,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-19 06:53:34,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:53:34,721 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:53:34,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:53:34,722 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:53:34,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:53:34,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1590219848, now seen corresponding path program 1 times [2022-11-19 06:53:34,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:53:34,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343145491] [2022-11-19 06:53:34,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:34,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:53:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:34,913 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-19 06:53:34,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:53:34,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343145491] [2022-11-19 06:53:34,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343145491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:53:34,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:53:34,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:53:34,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266294647] [2022-11-19 06:53:34,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:53:34,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:53:34,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:53:34,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:53:34,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:53:34,917 INFO L87 Difference]: Start difference. First operand 192 states and 255 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 06:53:35,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:53:35,082 INFO L93 Difference]: Finished difference Result 419 states and 577 transitions. [2022-11-19 06:53:35,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:53:35,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 96 [2022-11-19 06:53:35,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:53:35,089 INFO L225 Difference]: With dead ends: 419 [2022-11-19 06:53:35,089 INFO L226 Difference]: Without dead ends: 245 [2022-11-19 06:53:35,091 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 [2022-11-19 06:53:35,101 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 59 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:53:35,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 450 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:53:35,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2022-11-19 06:53:35,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 240. [2022-11-19 06:53:35,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 143 states have (on average 1.3636363636363635) internal successors, (195), 147 states have internal predecessors, (195), 72 states have call successors, (72), 24 states have call predecessors, (72), 24 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-19 06:53:35,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 338 transitions. [2022-11-19 06:53:35,151 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 338 transitions. Word has length 96 [2022-11-19 06:53:35,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:53:35,154 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 338 transitions. [2022-11-19 06:53:35,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 06:53:35,155 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 338 transitions. [2022-11-19 06:53:35,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-19 06:53:35,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:53:35,159 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:53:35,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 06:53:35,160 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:53:35,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:53:35,161 INFO L85 PathProgramCache]: Analyzing trace with hash 34743351, now seen corresponding path program 1 times [2022-11-19 06:53:35,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:53:35,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954606873] [2022-11-19 06:53:35,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:35,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:53:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:35,506 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-19 06:53:35,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:53:35,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954606873] [2022-11-19 06:53:35,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954606873] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:53:35,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087706615] [2022-11-19 06:53:35,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:35,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:53:35,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:53:35,512 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:53:35,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 06:53:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:35,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 1160 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 06:53:36,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:53:36,091 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-19 06:53:36,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:53:36,237 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-19 06:53:36,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087706615] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:53:36,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [456846384] [2022-11-19 06:53:36,270 INFO L159 IcfgInterpreter]: Started Sifa with 80 locations of interest [2022-11-19 06:53:36,270 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:53:36,278 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:53:36,283 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:53:36,284 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:54:15,732 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 448 for LOIs [2022-11-19 06:54:16,083 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 259 for LOIs [2022-11-19 06:54:18,067 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-19 06:54:18,390 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 261 for LOIs [2022-11-19 06:54:19,181 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 239 for LOIs [2022-11-19 06:54:19,266 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 239 for LOIs [2022-11-19 06:54:19,314 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 229 for LOIs [2022-11-19 06:54:19,353 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:54:33,223 WARN L233 SmtUtils]: Spent 5.38s on a formula simplification. DAG size of input: 448 DAG size of output: 248 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:54:39,182 WARN L233 SmtUtils]: Spent 5.84s on a formula simplification. DAG size of input: 471 DAG size of output: 268 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:55:09,786 WARN L233 SmtUtils]: Spent 5.46s on a formula simplification. DAG size of input: 502 DAG size of output: 299 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:55:17,067 WARN L233 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 512 DAG size of output: 289 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:55:41,533 WARN L233 SmtUtils]: Spent 24.07s on a formula simplification. DAG size of input: 596 DAG size of output: 468 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:55:48,263 WARN L233 SmtUtils]: Spent 6.35s on a formula simplification. DAG size of input: 565 DAG size of output: 331 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:55:54,877 WARN L233 SmtUtils]: Spent 6.26s on a formula simplification. DAG size of input: 567 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:56:04,294 WARN L233 SmtUtils]: Spent 9.04s on a formula simplification. DAG size of input: 569 DAG size of output: 393 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:56:13,679 WARN L233 SmtUtils]: Spent 8.96s on a formula simplification. DAG size of input: 565 DAG size of output: 389 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:56:39,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [456846384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:56:39,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:56:39,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [4, 4, 4] total 43 [2022-11-19 06:56:39,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56416597] [2022-11-19 06:56:39,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:56:39,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-19 06:56:39,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:56:39,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-19 06:56:39,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1693, Unknown=0, NotChecked=0, Total=1806 [2022-11-19 06:56:39,658 INFO L87 Difference]: Start difference. First operand 240 states and 338 transitions. Second operand has 38 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 24 states have internal predecessors, (47), 12 states have call successors, (22), 8 states have call predecessors, (22), 6 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) [2022-11-19 06:56:51,866 WARN L233 SmtUtils]: Spent 9.70s on a formula simplification. DAG size of input: 576 DAG size of output: 412 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:57:20,329 WARN L233 SmtUtils]: Spent 11.87s on a formula simplification. DAG size of input: 522 DAG size of output: 450 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:57:34,009 WARN L233 SmtUtils]: Spent 12.48s on a formula simplification. DAG size of input: 594 DAG size of output: 434 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:57:58,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:57:58,345 INFO L93 Difference]: Finished difference Result 641 states and 991 transitions. [2022-11-19 06:57:58,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-19 06:57:58,346 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 24 states have internal predecessors, (47), 12 states have call successors, (22), 8 states have call predecessors, (22), 6 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) Word has length 97 [2022-11-19 06:57:58,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:57:58,350 INFO L225 Difference]: With dead ends: 641 [2022-11-19 06:57:58,350 INFO L226 Difference]: Without dead ends: 419 [2022-11-19 06:57:58,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 194.6s TimeCoverageRelationStatistics Valid=181, Invalid=2471, Unknown=0, NotChecked=0, Total=2652 [2022-11-19 06:57:58,353 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 287 mSDsluCounter, 5373 mSDsCounter, 0 mSdLazyCounter, 5611 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 5658 SdHoareTripleChecker+Invalid, 5642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 5611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2022-11-19 06:57:58,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 5658 Invalid, 5642 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [31 Valid, 5611 Invalid, 0 Unknown, 0 Unchecked, 23.7s Time] [2022-11-19 06:57:58,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-11-19 06:57:58,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 318. [2022-11-19 06:57:58,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 212 states have (on average 1.4386792452830188) internal successors, (305), 216 states have internal predecessors, (305), 77 states have call successors, (77), 30 states have call predecessors, (77), 28 states have return successors, (76), 73 states have call predecessors, (76), 76 states have call successors, (76) [2022-11-19 06:57:58,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 458 transitions. [2022-11-19 06:57:58,599 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 458 transitions. Word has length 97 [2022-11-19 06:57:58,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:57:58,600 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 458 transitions. [2022-11-19 06:57:58,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 24 states have internal predecessors, (47), 12 states have call successors, (22), 8 states have call predecessors, (22), 6 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) [2022-11-19 06:57:58,601 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 458 transitions. [2022-11-19 06:57:58,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-19 06:57:58,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:57:58,603 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:57:58,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 06:57:58,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:57:58,811 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:57:58,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:57:58,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1798844295, now seen corresponding path program 1 times [2022-11-19 06:57:58,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:57:58,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461704633] [2022-11-19 06:57:58,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:57:58,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:57:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:57:58,981 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-19 06:57:58,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:57:58,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461704633] [2022-11-19 06:57:58,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461704633] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:57:58,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509244784] [2022-11-19 06:57:58,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:57:58,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:57:58,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:57:58,984 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:57:58,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 06:57:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:57:59,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 06:57:59,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:57:59,358 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-19 06:57:59,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:57:59,435 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-19 06:57:59,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509244784] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:57:59,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1773143818] [2022-11-19 06:57:59,440 INFO L159 IcfgInterpreter]: Started Sifa with 73 locations of interest [2022-11-19 06:57:59,440 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:57:59,441 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:57:59,441 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:57:59,441 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:58:41,656 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-19 06:58:41,970 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 471 for LOIs [2022-11-19 06:59:16,439 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 451 for LOIs [2022-11-19 06:59:16,751 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-19 06:59:17,106 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 469 for LOIs [2022-11-19 06:59:24,529 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 458 for LOIs [2022-11-19 06:59:36,449 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 431 for LOIs [2022-11-19 06:59:36,721 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 452 for LOIs [2022-11-19 06:59:37,492 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 247 for LOIs [2022-11-19 06:59:37,538 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 439 for LOIs [2022-11-19 06:59:37,844 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:00:27,192 WARN L233 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 512 DAG size of output: 289 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:00:35,550 WARN L233 SmtUtils]: Spent 6.72s on a formula simplification. DAG size of input: 560 DAG size of output: 362 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:00:42,925 WARN L233 SmtUtils]: Spent 7.07s on a formula simplification. DAG size of input: 562 DAG size of output: 364 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:00:50,925 WARN L233 SmtUtils]: Spent 7.64s on a formula simplification. DAG size of input: 566 DAG size of output: 385 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:00:58,906 WARN L233 SmtUtils]: Spent 7.66s on a formula simplification. DAG size of input: 562 DAG size of output: 381 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:01:06,939 WARN L233 SmtUtils]: Spent 7.64s on a formula simplification. DAG size of input: 568 DAG size of output: 387 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:01:14,063 WARN L233 SmtUtils]: Spent 6.79s on a formula simplification. DAG size of input: 561 DAG size of output: 363 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:01:19,652 WARN L233 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 471 DAG size of output: 314 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:01:25,534 WARN L233 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 485 DAG size of output: 328 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:01:41,389 WARN L233 SmtUtils]: Spent 6.51s on a formula simplification. DAG size of input: 524 DAG size of output: 328 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:01:54,782 WARN L233 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 520 DAG size of output: 282 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:02:01,788 WARN L233 SmtUtils]: Spent 6.55s on a formula simplification. DAG size of input: 533 DAG size of output: 340 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:02:09,021 WARN L233 SmtUtils]: Spent 6.75s on a formula simplification. DAG size of input: 469 DAG size of output: 353 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:02:16,194 WARN L233 SmtUtils]: Spent 6.70s on a formula simplification. DAG size of input: 473 DAG size of output: 357 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:02:34,278 WARN L233 SmtUtils]: Spent 7.08s on a formula simplification. DAG size of input: 481 DAG size of output: 347 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:02:41,698 WARN L233 SmtUtils]: Spent 6.85s on a formula simplification. DAG size of input: 483 DAG size of output: 349 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:03:33,646 WARN L233 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 568 DAG size of output: 376 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:03:40,214 WARN L233 SmtUtils]: Spent 5.79s on a formula simplification. DAG size of input: 593 DAG size of output: 401 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:03:40,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1773143818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:03:40,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:03:40,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [4, 4, 4] total 58 [2022-11-19 07:03:40,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693964778] [2022-11-19 07:03:40,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:03:40,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-11-19 07:03:40,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:03:40,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-11-19 07:03:40,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=3154, Unknown=0, NotChecked=0, Total=3306 [2022-11-19 07:03:40,221 INFO L87 Difference]: Start difference. First operand 318 states and 458 transitions. Second operand has 53 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 32 states have internal predecessors, (44), 17 states have call successors, (19), 11 states have call predecessors, (19), 8 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2022-11-19 07:05:14,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:05:14,151 INFO L93 Difference]: Finished difference Result 548 states and 801 transitions. [2022-11-19 07:05:14,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-11-19 07:05:14,152 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 32 states have internal predecessors, (44), 17 states have call successors, (19), 11 states have call predecessors, (19), 8 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) Word has length 86 [2022-11-19 07:05:14,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:05:14,158 INFO L225 Difference]: With dead ends: 548 [2022-11-19 07:05:14,158 INFO L226 Difference]: Without dead ends: 457 [2022-11-19 07:05:14,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 202 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1120 ImplicationChecksByTransitivity, 301.2s TimeCoverageRelationStatistics Valid=265, Invalid=4847, Unknown=0, NotChecked=0, Total=5112 [2022-11-19 07:05:14,161 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 392 mSDsluCounter, 6441 mSDsCounter, 0 mSdLazyCounter, 8199 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 6727 SdHoareTripleChecker+Invalid, 8219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 8199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:05:14,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 6727 Invalid, 8219 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [20 Valid, 8199 Invalid, 0 Unknown, 0 Unchecked, 34.1s Time] [2022-11-19 07:05:14,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2022-11-19 07:05:14,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 353. [2022-11-19 07:05:14,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 234 states have (on average 1.4145299145299146) internal successors, (331), 239 states have internal predecessors, (331), 86 states have call successors, (86), 34 states have call predecessors, (86), 32 states have return successors, (86), 81 states have call predecessors, (86), 85 states have call successors, (86) [2022-11-19 07:05:14,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 503 transitions. [2022-11-19 07:05:14,397 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 503 transitions. Word has length 86 [2022-11-19 07:05:14,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:05:14,397 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 503 transitions. [2022-11-19 07:05:14,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 32 states have internal predecessors, (44), 17 states have call successors, (19), 11 states have call predecessors, (19), 8 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2022-11-19 07:05:14,398 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 503 transitions. [2022-11-19 07:05:14,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-19 07:05:14,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:05:14,403 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:05:14,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:05:14,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:05:14,608 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:05:14,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:05:14,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1231439396, now seen corresponding path program 1 times [2022-11-19 07:05:14,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:05:14,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627958540] [2022-11-19 07:05:14,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:14,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:05:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:05:14,747 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-19 07:05:14,748 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:05:14,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627958540] [2022-11-19 07:05:14,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627958540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:05:14,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:05:14,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:05:14,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605300863] [2022-11-19 07:05:14,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:05:14,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:05:14,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:05:14,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:05:14,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:05:14,752 INFO L87 Difference]: Start difference. First operand 353 states and 503 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2022-11-19 07:05:15,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:05:15,345 INFO L93 Difference]: Finished difference Result 793 states and 1162 transitions. [2022-11-19 07:05:15,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:05:15,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 102 [2022-11-19 07:05:15,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:05:15,354 INFO L225 Difference]: With dead ends: 793 [2022-11-19 07:05:15,354 INFO L226 Difference]: Without dead ends: 478 [2022-11-19 07:05:15,355 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 [2022-11-19 07:05:15,356 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 57 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:05:15,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 466 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:05:15,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2022-11-19 07:05:15,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 471. [2022-11-19 07:05:15,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 321 states have (on average 1.4485981308411215) internal successors, (465), 326 states have internal predecessors, (465), 117 states have call successors, (117), 34 states have call predecessors, (117), 32 states have return successors, (117), 112 states have call predecessors, (117), 116 states have call successors, (117) [2022-11-19 07:05:15,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 699 transitions. [2022-11-19 07:05:15,699 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 699 transitions. Word has length 102 [2022-11-19 07:05:15,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:05:15,699 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 699 transitions. [2022-11-19 07:05:15,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2022-11-19 07:05:15,700 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 699 transitions. [2022-11-19 07:05:15,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-19 07:05:15,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:05:15,703 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:05:15,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:05:15,703 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:05:15,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:05:15,704 INFO L85 PathProgramCache]: Analyzing trace with hash 204952288, now seen corresponding path program 1 times [2022-11-19 07:05:15,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:05:15,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330226535] [2022-11-19 07:05:15,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:15,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:05:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:05:15,872 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-19 07:05:15,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:05:15,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330226535] [2022-11-19 07:05:15,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330226535] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:05:15,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672821324] [2022-11-19 07:05:15,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:15,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:05:15,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:05:15,875 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:05:15,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177e6390-c3c3-49b2-aab7-6f79428857d8/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:05:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:05:16,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:05:16,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:05:16,241 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-19 07:05:16,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:05:16,328 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-19 07:05:16,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672821324] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:05:16,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2072794751] [2022-11-19 07:05:16,340 INFO L159 IcfgInterpreter]: Started Sifa with 77 locations of interest [2022-11-19 07:05:16,341 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:05:16,341 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:05:16,342 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:05:16,342 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:06:04,022 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 448 for LOIs [2022-11-19 07:06:04,387 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-19 07:06:04,732 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:06:17,994 WARN L233 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 448 DAG size of output: 248 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:06:23,416 WARN L233 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 471 DAG size of output: 268 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)