./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product25.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_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/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_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/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_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/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 be72096c105f582e8528565b95ebbdcff5f4be75e7838295d3ddf5b4552aba69 --- 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 06:55:54,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:55:54,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:55:54,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:55:54,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:55:54,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:55:54,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:55:54,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:55:54,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:55:54,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:55:54,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:55:54,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:55:54,832 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:55:54,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:55:54,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:55:54,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:55:54,842 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:55:54,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:55:54,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:55:54,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:55:54,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:55:54,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:55:54,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:55:54,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:55:54,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:55:54,870 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:55:54,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:55:54,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:55:54,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:55:54,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:55:54,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:55:54,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:55:54,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:55:54,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:55:54,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:55:54,881 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:55:54,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:55:54,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:55:54,883 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:55:54,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:55:54,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:55:54,885 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 06:55:54,927 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:55:54,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:55:54,928 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:55:54,928 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:55:54,929 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:55:54,929 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:55:54,929 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:55:54,930 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:55:54,930 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:55:54,930 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:55:54,931 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:55:54,931 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:55:54,931 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:55:54,932 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:55:54,932 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:55:54,932 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:55:54,932 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:55:54,932 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:55:54,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:55:54,933 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:55:54,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:55:54,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:55:54,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:55:54,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:55:54,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:55:54,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:55:54,934 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:55:54,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:55:54,935 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:55:54,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:55:54,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:55:54,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:55:54,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:55:54,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:55:54,936 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:55:54,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:55:54,937 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:55:54,937 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:55:54,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:55:54,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:55:54,938 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:55:54,938 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_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be72096c105f582e8528565b95ebbdcff5f4be75e7838295d3ddf5b4552aba69 [2022-11-19 06:55:55,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:55:55,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:55:55,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:55:55,335 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:55:55,336 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:55:55,337 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/email_spec0_product25.cil.c [2022-11-19 06:55:55,405 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS/data/a83cc2172/8b86ce2c227843fcbd97fce3c9be1a1f/FLAGd54360c5d [2022-11-19 06:55:56,081 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:55:56,082 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/sv-benchmarks/c/product-lines/email_spec0_product25.cil.c [2022-11-19 06:55:56,103 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS/data/a83cc2172/8b86ce2c227843fcbd97fce3c9be1a1f/FLAGd54360c5d [2022-11-19 06:55:56,304 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS/data/a83cc2172/8b86ce2c227843fcbd97fce3c9be1a1f [2022-11-19 06:55:56,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:55:56,307 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:55:56,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:55:56,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:55:56,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:55:56,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:55:56" (1/1) ... [2022-11-19 06:55:56,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7698ad7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:56, skipping insertion in model container [2022-11-19 06:55:56,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:55:56" (1/1) ... [2022-11-19 06:55:56,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:55:56,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:55:56,902 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_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/sv-benchmarks/c/product-lines/email_spec0_product25.cil.c[43418,43431] [2022-11-19 06:55:57,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:55:57,075 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:55:57,158 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_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/sv-benchmarks/c/product-lines/email_spec0_product25.cil.c[43418,43431] [2022-11-19 06:55:57,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:55:57,225 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:55:57,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:57 WrapperNode [2022-11-19 06:55:57,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:55:57,227 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:55:57,227 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:55:57,227 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:55:57,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:57" (1/1) ... [2022-11-19 06:55:57,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:57" (1/1) ... [2022-11-19 06:55:57,314 INFO L138 Inliner]: procedures = 130, calls = 217, calls flagged for inlining = 61, calls inlined = 58, statements flattened = 1072 [2022-11-19 06:55:57,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:55:57,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:55:57,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:55:57,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:55:57,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:57" (1/1) ... [2022-11-19 06:55:57,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:57" (1/1) ... [2022-11-19 06:55:57,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:57" (1/1) ... [2022-11-19 06:55:57,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:57" (1/1) ... [2022-11-19 06:55:57,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:57" (1/1) ... [2022-11-19 06:55:57,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:57" (1/1) ... [2022-11-19 06:55:57,376 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:57" (1/1) ... [2022-11-19 06:55:57,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:57" (1/1) ... [2022-11-19 06:55:57,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:55:57,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:55:57,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:55:57,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:55:57,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:57" (1/1) ... [2022-11-19 06:55:57,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:55:57,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:55:57,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:55:57,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:55:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-19 06:55:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-19 06:55:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-19 06:55:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-19 06:55:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2022-11-19 06:55:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2022-11-19 06:55:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-19 06:55:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-19 06:55:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-19 06:55:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-19 06:55:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-19 06:55:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-19 06:55:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-19 06:55:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-19 06:55:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-19 06:55:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-19 06:55:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-19 06:55:57,543 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-19 06:55:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-19 06:55:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-19 06:55:57,544 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-19 06:55:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-19 06:55:57,544 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-19 06:55:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:55:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-19 06:55:57,545 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-19 06:55:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-19 06:55:57,545 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-19 06:55:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-19 06:55:57,545 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-19 06:55:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-19 06:55:57,546 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-19 06:55:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-19 06:55:57,546 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-19 06:55:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-19 06:55:57,547 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-19 06:55:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-19 06:55:57,547 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-19 06:55:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-19 06:55:57,547 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-19 06:55:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:55:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-19 06:55:57,548 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-19 06:55:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-19 06:55:57,548 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-19 06:55:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:55:57,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:55:57,772 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:55:57,774 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:55:58,801 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:55:59,408 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:55:59,408 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 06:55:59,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:55:59 BoogieIcfgContainer [2022-11-19 06:55:59,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:55:59,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:55:59,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:55:59,419 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:55:59,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:55:56" (1/3) ... [2022-11-19 06:55:59,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd459f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:55:59, skipping insertion in model container [2022-11-19 06:55:59,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:57" (2/3) ... [2022-11-19 06:55:59,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd459f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:55:59, skipping insertion in model container [2022-11-19 06:55:59,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:55:59" (3/3) ... [2022-11-19 06:55:59,423 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product25.cil.c [2022-11-19 06:55:59,444 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:55:59,444 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:55:59,530 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:55:59,537 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;@401888d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:55:59,538 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:55:59,543 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 103 states have (on average 1.3203883495145632) internal successors, (136), 106 states have internal predecessors, (136), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2022-11-19 06:55:59,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-19 06:55:59,566 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:59,567 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] [2022-11-19 06:55:59,568 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:55:59,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:59,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1667383075, now seen corresponding path program 1 times [2022-11-19 06:55:59,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:59,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068660638] [2022-11-19 06:55:59,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:59,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:00,056 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-19 06:56:00,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:00,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068660638] [2022-11-19 06:56:00,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068660638] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:56:00,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:56:00,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:56:00,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842720214] [2022-11-19 06:56:00,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:56:00,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 06:56:00,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:56:00,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 06:56:00,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:56:00,107 INFO L87 Difference]: Start difference. First operand has 180 states, 103 states have (on average 1.3203883495145632) internal successors, (136), 106 states have internal predecessors, (136), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 06:56:00,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:56:00,266 INFO L93 Difference]: Finished difference Result 268 states and 359 transitions. [2022-11-19 06:56:00,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 06:56:00,269 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2022-11-19 06:56:00,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:56:00,281 INFO L225 Difference]: With dead ends: 268 [2022-11-19 06:56:00,281 INFO L226 Difference]: Without dead ends: 177 [2022-11-19 06:56:00,287 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 06:56:00,291 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:56:00,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 204 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:56:00,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-11-19 06:56:00,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2022-11-19 06:56:00,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 101 states have (on average 1.2871287128712872) internal successors, (130), 103 states have internal predecessors, (130), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2022-11-19 06:56:00,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 237 transitions. [2022-11-19 06:56:00,385 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 237 transitions. Word has length 71 [2022-11-19 06:56:00,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:56:00,387 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 237 transitions. [2022-11-19 06:56:00,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 06:56:00,387 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 237 transitions. [2022-11-19 06:56:00,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-19 06:56:00,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:00,391 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] [2022-11-19 06:56:00,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:56:00,391 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:56:00,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:00,392 INFO L85 PathProgramCache]: Analyzing trace with hash -379101384, now seen corresponding path program 1 times [2022-11-19 06:56:00,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:00,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643105234] [2022-11-19 06:56:00,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:00,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:00,763 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-19 06:56:00,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:00,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643105234] [2022-11-19 06:56:00,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643105234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:56:00,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:56:00,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:56:00,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322055248] [2022-11-19 06:56:00,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:56:00,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:56:00,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:56:00,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:56:00,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:56:00,771 INFO L87 Difference]: Start difference. First operand 177 states and 237 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 06:56:00,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:56:00,976 INFO L93 Difference]: Finished difference Result 264 states and 344 transitions. [2022-11-19 06:56:00,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:56:00,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2022-11-19 06:56:00,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:56:00,983 INFO L225 Difference]: With dead ends: 264 [2022-11-19 06:56:00,983 INFO L226 Difference]: Without dead ends: 179 [2022-11-19 06:56:00,991 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 06:56:00,993 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 0 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:56:00,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 401 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:56:00,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-11-19 06:56:01,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2022-11-19 06:56:01,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 103 states have (on average 1.2815533980582525) internal successors, (132), 105 states have internal predecessors, (132), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2022-11-19 06:56:01,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 239 transitions. [2022-11-19 06:56:01,025 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 239 transitions. Word has length 72 [2022-11-19 06:56:01,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:56:01,026 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 239 transitions. [2022-11-19 06:56:01,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 06:56:01,027 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 239 transitions. [2022-11-19 06:56:01,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-19 06:56:01,037 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:01,038 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:56:01,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:56:01,039 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:56:01,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:01,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1473074810, now seen corresponding path program 1 times [2022-11-19 06:56:01,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:01,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765282528] [2022-11-19 06:56:01,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:01,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:01,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:01,216 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-19 06:56:01,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:01,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765282528] [2022-11-19 06:56:01,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765282528] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:56:01,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:56:01,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:56:01,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834080550] [2022-11-19 06:56:01,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:56:01,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:56:01,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:56:01,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:56:01,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:56:01,221 INFO L87 Difference]: Start difference. First operand 179 states and 239 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 06:56:01,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:56:01,403 INFO L93 Difference]: Finished difference Result 393 states and 545 transitions. [2022-11-19 06:56:01,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:56:01,404 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2022-11-19 06:56:01,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:56:01,410 INFO L225 Difference]: With dead ends: 393 [2022-11-19 06:56:01,410 INFO L226 Difference]: Without dead ends: 232 [2022-11-19 06:56:01,414 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 06:56:01,419 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 59 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 412 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 06:56:01,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 412 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:56:01,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-11-19 06:56:01,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 227. [2022-11-19 06:56:01,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 137 states have (on average 1.364963503649635) internal successors, (187), 139 states have internal predecessors, (187), 68 states have call successors, (68), 21 states have call predecessors, (68), 21 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2022-11-19 06:56:01,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 322 transitions. [2022-11-19 06:56:01,454 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 322 transitions. Word has length 77 [2022-11-19 06:56:01,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:56:01,456 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 322 transitions. [2022-11-19 06:56:01,456 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 06:56:01,456 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 322 transitions. [2022-11-19 06:56:01,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-19 06:56:01,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:01,461 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:56:01,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 06:56:01,462 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:56:01,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:01,463 INFO L85 PathProgramCache]: Analyzing trace with hash 769229580, now seen corresponding path program 1 times [2022-11-19 06:56:01,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:01,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148575640] [2022-11-19 06:56:01,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:01,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:01,703 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-19 06:56:01,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:01,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148575640] [2022-11-19 06:56:01,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148575640] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:56:01,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296639219] [2022-11-19 06:56:01,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:01,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:56:01,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:56:01,718 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:56:01,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 06:56:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:02,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 1086 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 06:56:02,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:56:02,213 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-19 06:56:02,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:56:02,325 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-19 06:56:02,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296639219] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:56:02,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [773748738] [2022-11-19 06:56:02,355 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-11-19 06:56:02,356 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:56:02,361 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:56:02,367 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:56:02,368 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:56:36,119 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-19 06:56:36,437 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-19 06:56:36,876 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 256 for LOIs [2022-11-19 06:56:38,991 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 258 for LOIs [2022-11-19 06:56:43,364 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 239 for LOIs [2022-11-19 06:56:43,423 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Keys with input of size 266 for LOIs [2022-11-19 06:56:49,373 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 438 for LOIs [2022-11-19 06:56:49,633 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 248 for LOIs [2022-11-19 06:56:49,677 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 480 for LOIs [2022-11-19 06:56:51,786 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 234 for LOIs [2022-11-19 06:56:51,833 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:57:30,943 WARN L233 SmtUtils]: Spent 6.74s on a formula simplification. DAG size of input: 492 DAG size of output: 341 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:57:42,824 WARN L233 SmtUtils]: Spent 6.47s on a formula simplification. DAG size of input: 514 DAG size of output: 333 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:57:49,778 WARN L233 SmtUtils]: Spent 6.66s on a formula simplification. DAG size of input: 570 DAG size of output: 324 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:57:57,899 WARN L233 SmtUtils]: Spent 7.80s 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 06:58:03,397 WARN L233 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 567 DAG size of output: 328 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:58:09,161 WARN L233 SmtUtils]: Spent 5.38s on a formula simplification. DAG size of input: 565 DAG size of output: 326 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:58:15,009 WARN L233 SmtUtils]: Spent 5.45s on a formula simplification. DAG size of input: 569 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:58:32,427 WARN L233 SmtUtils]: Spent 13.64s on a formula simplification. DAG size of input: 480 DAG size of output: 368 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:59:20,714 WARN L233 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 438 DAG size of output: 317 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:59:26,601 WARN L233 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 444 DAG size of output: 323 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:59:35,197 WARN L233 SmtUtils]: Spent 7.88s on a formula simplification. DAG size of input: 537 DAG size of output: 362 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:59:41,848 WARN L233 SmtUtils]: Spent 5.97s on a formula simplification. DAG size of input: 537 DAG size of output: 357 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:59:41,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [773748738] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:59:41,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:59:41,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [4, 4, 4] total 54 [2022-11-19 06:59:41,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637452575] [2022-11-19 06:59:41,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:59:41,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-11-19 06:59:41,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:59:41,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-11-19 06:59:41,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=2713, Unknown=0, NotChecked=0, Total=2862 [2022-11-19 06:59:41,860 INFO L87 Difference]: Start difference. First operand 227 states and 322 transitions. Second operand has 49 states, 32 states have (on average 1.21875) internal successors, (39), 29 states have internal predecessors, (39), 16 states have call successors, (17), 10 states have call predecessors, (17), 7 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-19 07:00:23,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:00:23,153 INFO L93 Difference]: Finished difference Result 545 states and 806 transitions. [2022-11-19 07:00:23,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-19 07:00:23,155 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 32 states have (on average 1.21875) internal successors, (39), 29 states have internal predecessors, (39), 16 states have call successors, (17), 10 states have call predecessors, (17), 7 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 78 [2022-11-19 07:00:23,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:00:23,158 INFO L225 Difference]: With dead ends: 545 [2022-11-19 07:00:23,158 INFO L226 Difference]: Without dead ends: 336 [2022-11-19 07:00:23,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 183 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 183.4s TimeCoverageRelationStatistics Valid=173, Invalid=3133, Unknown=0, NotChecked=0, Total=3306 [2022-11-19 07:00:23,161 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 161 mSDsluCounter, 5486 mSDsCounter, 0 mSdLazyCounter, 6938 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 5709 SdHoareTripleChecker+Invalid, 6960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 6938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:00:23,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 5709 Invalid, 6960 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [22 Valid, 6938 Invalid, 0 Unknown, 0 Unchecked, 27.3s Time] [2022-11-19 07:00:23,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-11-19 07:00:23,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 293. [2022-11-19 07:00:23,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 185 states have (on average 1.3567567567567567) internal successors, (251), 188 states have internal predecessors, (251), 79 states have call successors, (79), 30 states have call predecessors, (79), 28 states have return successors, (79), 74 states have call predecessors, (79), 78 states have call successors, (79) [2022-11-19 07:00:23,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 409 transitions. [2022-11-19 07:00:23,350 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 409 transitions. Word has length 78 [2022-11-19 07:00:23,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:00:23,352 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 409 transitions. [2022-11-19 07:00:23,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 32 states have (on average 1.21875) internal successors, (39), 29 states have internal predecessors, (39), 16 states have call successors, (17), 10 states have call predecessors, (17), 7 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-19 07:00:23,353 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 409 transitions. [2022-11-19 07:00:23,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-19 07:00:23,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:00:23,356 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:00:23,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 07:00:23,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:00:23,564 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:00:23,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:00:23,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1426991427, now seen corresponding path program 1 times [2022-11-19 07:00:23,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:00:23,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727014036] [2022-11-19 07:00:23,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:00:23,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:00:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:00:23,666 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:00:23,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:00:23,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727014036] [2022-11-19 07:00:23,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727014036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:00:23,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:00:23,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:00:23,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71299883] [2022-11-19 07:00:23,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:00:23,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:00:23,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:00:23,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:00:23,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:00:23,669 INFO L87 Difference]: Start difference. First operand 293 states and 409 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 07:00:23,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:00:23,989 INFO L93 Difference]: Finished difference Result 688 states and 998 transitions. [2022-11-19 07:00:23,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:00:23,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 83 [2022-11-19 07:00:23,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:00:23,996 INFO L225 Difference]: With dead ends: 688 [2022-11-19 07:00:23,996 INFO L226 Difference]: Without dead ends: 421 [2022-11-19 07:00:23,997 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 07:00:23,999 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 57 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:00:23,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 432 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:00:24,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-11-19 07:00:24,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 414. [2022-11-19 07:00:24,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 275 states have (on average 1.4218181818181819) internal successors, (391), 278 states have internal predecessors, (391), 110 states have call successors, (110), 30 states have call predecessors, (110), 28 states have return successors, (110), 105 states have call predecessors, (110), 109 states have call successors, (110) [2022-11-19 07:00:24,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 611 transitions. [2022-11-19 07:00:24,186 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 611 transitions. Word has length 83 [2022-11-19 07:00:24,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:00:24,186 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 611 transitions. [2022-11-19 07:00:24,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 07:00:24,187 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 611 transitions. [2022-11-19 07:00:24,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-19 07:00:24,189 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:00:24,189 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:00:24,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:00:24,190 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:00:24,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:00:24,190 INFO L85 PathProgramCache]: Analyzing trace with hash -678441256, now seen corresponding path program 1 times [2022-11-19 07:00:24,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:00:24,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203098308] [2022-11-19 07:00:24,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:00:24,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:00:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:00:24,345 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:00:24,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:00:24,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203098308] [2022-11-19 07:00:24,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203098308] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:00:24,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101597516] [2022-11-19 07:00:24,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:00:24,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:00:24,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:00:24,360 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:00:24,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:00:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:00:24,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 1116 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:00:24,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:00:24,755 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:00:24,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:00:24,837 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:00:24,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101597516] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:00:24,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [621955286] [2022-11-19 07:00:24,844 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-11-19 07:00:24,844 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:00:24,848 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:00:24,848 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:00:24,848 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:01:01,068 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-19 07:01:01,378 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-11-19 07:01:01,687 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 252 for LOIs [2022-11-19 07:01:03,417 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 252 for LOIs [2022-11-19 07:01:07,413 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 258 for LOIs [2022-11-19 07:01:07,466 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Keys with input of size 262 for LOIs [2022-11-19 07:01:10,644 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 244 for LOIs [2022-11-19 07:01:10,681 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 244 for LOIs [2022-11-19 07:01:10,741 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 476 for LOIs [2022-11-19 07:01:12,754 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 230 for LOIs [2022-11-19 07:01:12,792 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:01:30,810 WARN L233 SmtUtils]: Spent 5.17s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:01:55,943 WARN L233 SmtUtils]: Spent 6.67s on a formula simplification. DAG size of input: 492 DAG size of output: 341 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:02:07,607 WARN L233 SmtUtils]: Spent 6.44s on a formula simplification. DAG size of input: 514 DAG size of output: 333 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:02:18,632 WARN L233 SmtUtils]: Spent 10.69s on a formula simplification. DAG size of input: 588 DAG size of output: 337 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:02:45,450 WARN L233 SmtUtils]: Spent 12.90s on a formula simplification. DAG size of input: 476 DAG size of output: 364 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:03:23,799 WARN L233 SmtUtils]: Spent 5.40s on a formula simplification. DAG size of input: 497 DAG size of output: 343 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:03:33,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [621955286] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:03:33,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:03:33,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [4, 4, 4] total 58 [2022-11-19 07:03:33,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241799556] [2022-11-19 07:03:33,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:03:33,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-11-19 07:03:33,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:03:33,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-11-19 07:03:33,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=3133, Unknown=0, NotChecked=0, Total=3306 [2022-11-19 07:03:33,947 INFO L87 Difference]: Start difference. First operand 414 states and 611 transitions. Second operand has 53 states, 35 states have (on average 1.2) internal successors, (42), 32 states have internal predecessors, (42), 17 states have call successors, (18), 10 states have call predecessors, (18), 7 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) [2022-11-19 07:04:44,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:44,823 INFO L93 Difference]: Finished difference Result 880 states and 1347 transitions. [2022-11-19 07:04:44,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-11-19 07:04:44,824 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 35 states have (on average 1.2) internal successors, (42), 32 states have internal predecessors, (42), 17 states have call successors, (18), 10 states have call predecessors, (18), 7 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) Word has length 84 [2022-11-19 07:04:44,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:44,828 INFO L225 Difference]: With dead ends: 880 [2022-11-19 07:04:44,828 INFO L226 Difference]: Without dead ends: 571 [2022-11-19 07:04:44,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1030 ImplicationChecksByTransitivity, 184.6s TimeCoverageRelationStatistics Valid=273, Invalid=4557, Unknown=0, NotChecked=0, Total=4830 [2022-11-19 07:04:44,831 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 398 mSDsluCounter, 4553 mSDsCounter, 0 mSdLazyCounter, 6692 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 4769 SdHoareTripleChecker+Invalid, 6749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 6692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:04:44,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 4769 Invalid, 6749 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [57 Valid, 6692 Invalid, 0 Unknown, 0 Unchecked, 26.7s Time] [2022-11-19 07:04:44,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2022-11-19 07:04:45,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 430. [2022-11-19 07:04:45,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 287 states have (on average 1.4250871080139373) internal successors, (409), 292 states have internal predecessors, (409), 113 states have call successors, (113), 31 states have call predecessors, (113), 29 states have return successors, (113), 106 states have call predecessors, (113), 112 states have call successors, (113) [2022-11-19 07:04:45,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 635 transitions. [2022-11-19 07:04:45,051 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 635 transitions. Word has length 84 [2022-11-19 07:04:45,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:45,052 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 635 transitions. [2022-11-19 07:04:45,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 35 states have (on average 1.2) internal successors, (42), 32 states have internal predecessors, (42), 17 states have call successors, (18), 10 states have call predecessors, (18), 7 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) [2022-11-19 07:04:45,052 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 635 transitions. [2022-11-19 07:04:45,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-19 07:04:45,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:45,055 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:04:45,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-19 07:04:45,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:04:45,262 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:45,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:45,262 INFO L85 PathProgramCache]: Analyzing trace with hash 517204407, now seen corresponding path program 1 times [2022-11-19 07:04:45,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:04:45,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444996291] [2022-11-19 07:04:45,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:45,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:04:45,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:45,397 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-19 07:04:45,397 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:04:45,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444996291] [2022-11-19 07:04:45,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444996291] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:04:45,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242443335] [2022-11-19 07:04:45,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:45,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:04:45,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:04:45,399 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:04:45,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eddb4d-b5b8-4c9a-99f5-19f66b5a8b59/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:04:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:45,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 1100 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:04:45,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:45,753 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-19 07:04:45,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:04:45,824 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-19 07:04:45,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242443335] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:04:45,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [839355067] [2022-11-19 07:04:45,832 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-11-19 07:04:45,832 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:04:45,832 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:04:45,833 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:04:45,833 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:05:14,690 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-19 07:05:15,182 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-19 07:05:15,545 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 256 for LOIs [2022-11-19 07:05:17,349 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 256 for LOIs [2022-11-19 07:05:21,217 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 267 for LOIs [2022-11-19 07:05:21,279 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Keys with input of size 266 for LOIs [2022-11-19 07:05:37,742 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 438 for LOIs [2022-11-19 07:05:37,993 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 248 for LOIs [2022-11-19 07:05:38,055 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 234 for LOIs [2022-11-19 07:05:38,096 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 480 for LOIs [2022-11-19 07:05:42,273 INFO L197 IcfgInterpreter]: Interpreting procedure isSigned with input of size 438 for LOIs [2022-11-19 07:05:42,535 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:06:00,492 WARN L233 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:06:23,529 WARN L233 SmtUtils]: Spent 6.64s on a formula simplification. DAG size of input: 492 DAG size of output: 341 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:06:35,321 WARN L233 SmtUtils]: Spent 6.53s on a formula simplification. DAG size of input: 514 DAG size of output: 333 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:06:42,285 WARN L233 SmtUtils]: Spent 6.68s on a formula simplification. DAG size of input: 570 DAG size of output: 324 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:06:50,371 WARN L233 SmtUtils]: Spent 7.79s 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 07:06:55,798 WARN L233 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 567 DAG size of output: 328 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:07:01,209 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 565 DAG size of output: 326 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:07:06,709 WARN L233 SmtUtils]: Spent 5.17s on a formula simplification. DAG size of input: 569 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:07:23,491 WARN L233 SmtUtils]: Spent 13.28s on a formula simplification. DAG size of input: 480 DAG size of output: 368 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:08:12,247 WARN L233 SmtUtils]: Spent 5.24s on a formula simplification. DAG size of input: 438 DAG size of output: 317 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:08:18,450 WARN L233 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 444 DAG size of output: 323 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:08:27,219 WARN L233 SmtUtils]: Spent 8.04s on a formula simplification. DAG size of input: 537 DAG size of output: 362 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:08:34,062 WARN L233 SmtUtils]: Spent 6.11s on a formula simplification. DAG size of input: 537 DAG size of output: 357 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:08:55,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [839355067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:08:55,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:08:55,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [4, 4, 4] total 60 [2022-11-19 07:08:55,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281985524] [2022-11-19 07:08:55,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:08:55,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-11-19 07:08:55,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:08:55,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-11-19 07:08:55,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=3359, Unknown=0, NotChecked=0, Total=3540 [2022-11-19 07:08:55,115 INFO L87 Difference]: Start difference. First operand 430 states and 635 transitions. Second operand has 55 states, 37 states have (on average 1.135135135135135) internal successors, (42), 33 states have internal predecessors, (42), 17 states have call successors, (18), 11 states have call predecessors, (18), 8 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15)