./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product34.cil.c --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for ERROR reachability
Using default analysis
Version aef121e0
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 39fe77adb61a1e466f06fcf9920e7f42d562f22740249d3a797ea504e0f3c31a
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-aef121e
[2021-11-23 02:26:19,415 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-11-23 02:26:19,418 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-23 02:26:19,476 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-23 02:26:19,476 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-23 02:26:19,481 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-23 02:26:19,483 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-23 02:26:19,487 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-23 02:26:19,490 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-23 02:26:19,496 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-23 02:26:19,497 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-11-23 02:26:19,499 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-23 02:26:19,499 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-23 02:26:19,502 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-23 02:26:19,504 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-23 02:26:19,509 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-23 02:26:19,510 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-23 02:26:19,511 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-23 02:26:19,513 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-23 02:26:19,516 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-23 02:26:19,517 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-23 02:26:19,519 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-23 02:26:19,520 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-11-23 02:26:19,521 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-23 02:26:19,525 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-23 02:26:19,525 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-23 02:26:19,525 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-23 02:26:19,526 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-23 02:26:19,527 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-23 02:26:19,528 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-23 02:26:19,528 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-23 02:26:19,529 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-23 02:26:19,530 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-23 02:26:19,531 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-23 02:26:19,532 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-23 02:26:19,532 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-23 02:26:19,533 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-23 02:26:19,533 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-23 02:26:19,534 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-23 02:26:19,535 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-23 02:26:19,535 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-11-23 02:26:19,536 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf
[2021-11-23 02:26:19,560 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-11-23 02:26:19,560 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-23 02:26:19,561 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-23 02:26:19,561 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-23 02:26:19,562 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-23 02:26:19,562 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-23 02:26:19,562 INFO  L138        SettingsManager]:  * User list type=DISABLED
[2021-11-23 02:26:19,562 INFO  L136        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2021-11-23 02:26:19,562 INFO  L138        SettingsManager]:  * Explicit value domain=true
[2021-11-23 02:26:19,562 INFO  L138        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2021-11-23 02:26:19,563 INFO  L138        SettingsManager]:  * Octagon Domain=false
[2021-11-23 02:26:19,563 INFO  L138        SettingsManager]:  * Abstract domain=CompoundDomain
[2021-11-23 02:26:19,563 INFO  L138        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2021-11-23 02:26:19,563 INFO  L138        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2021-11-23 02:26:19,563 INFO  L138        SettingsManager]:  * Interval Domain=false
[2021-11-23 02:26:19,564 INFO  L136        SettingsManager]: Preferences of Sifa differ from their defaults:
[2021-11-23 02:26:19,564 INFO  L138        SettingsManager]:  * Call Summarizer=TopInputCallSummarizer
[2021-11-23 02:26:19,564 INFO  L138        SettingsManager]:  * Simplification Technique=POLY_PAC
[2021-11-23 02:26:19,565 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-23 02:26:19,565 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-11-23 02:26:19,565 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-11-23 02:26:19,565 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-11-23 02:26:19,566 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-11-23 02:26:19,566 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-11-23 02:26:19,566 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-23 02:26:19,566 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-11-23 02:26:19,566 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-11-23 02:26:19,567 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-11-23 02:26:19,567 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-11-23 02:26:19,567 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-11-23 02:26:19,567 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-23 02:26:19,567 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-11-23 02:26:19,568 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-23 02:26:19,568 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-23 02:26:19,568 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-11-23 02:26:19,568 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-23 02:26:19,568 INFO  L138        SettingsManager]:  * Trace refinement strategy=SIFA_TAIPAN
[2021-11-23 02:26:19,569 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-11-23 02:26:19,569 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-23 02:26:19,569 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-11-23 02:26:19,569 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2021-11-23 02:26:19,569 INFO  L138        SettingsManager]:  * Abstract interpretation Mode=USE_PREDICATES
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_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/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_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39fe77adb61a1e466f06fcf9920e7f42d562f22740249d3a797ea504e0f3c31a
[2021-11-23 02:26:19,899 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-23 02:26:19,938 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-23 02:26:19,941 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-23 02:26:19,942 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-11-23 02:26:19,943 INFO  L275        PluginConnector]: CDTParser initialized
[2021-11-23 02:26:19,945 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/email_spec27_product34.cil.c
[2021-11-23 02:26:20,022 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/data/1745761de/7b47b27554bb41f4a562a4c16ecb664a/FLAG7d768db38
[2021-11-23 02:26:20,649 INFO  L306              CDTParser]: Found 1 translation units.
[2021-11-23 02:26:20,650 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/sv-benchmarks/c/product-lines/email_spec27_product34.cil.c
[2021-11-23 02:26:20,686 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/data/1745761de/7b47b27554bb41f4a562a4c16ecb664a/FLAG7d768db38
[2021-11-23 02:26:20,871 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/data/1745761de/7b47b27554bb41f4a562a4c16ecb664a
[2021-11-23 02:26:20,876 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-23 02:26:20,877 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-23 02:26:20,883 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-23 02:26:20,883 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-23 02:26:20,887 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-23 02:26:20,888 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:26:20" (1/1) ...
[2021-11-23 02:26:20,891 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4502c849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:20, skipping insertion in model container
[2021-11-23 02:26:20,892 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:26:20" (1/1) ...
[2021-11-23 02:26:20,899 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-11-23 02:26:20,987 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-11-23 02:26:21,694 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/sv-benchmarks/c/product-lines/email_spec27_product34.cil.c[51595,51608]
[2021-11-23 02:26:21,765 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-11-23 02:26:21,776 INFO  L203         MainTranslator]: Completed pre-run
[2021-11-23 02:26:21,841 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/sv-benchmarks/c/product-lines/email_spec27_product34.cil.c[51595,51608]
[2021-11-23 02:26:21,867 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-11-23 02:26:21,913 INFO  L208         MainTranslator]: Completed translation
[2021-11-23 02:26:21,913 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:21 WrapperNode
[2021-11-23 02:26:21,913 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-23 02:26:21,914 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-23 02:26:21,915 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-23 02:26:21,915 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-23 02:26:21,922 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:21" (1/1) ...
[2021-11-23 02:26:21,980 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:21" (1/1) ...
[2021-11-23 02:26:22,070 INFO  L137                Inliner]: procedures = 134, calls = 238, calls flagged for inlining = 61, calls inlined = 58, statements flattened = 1088
[2021-11-23 02:26:22,078 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-23 02:26:22,079 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-23 02:26:22,079 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-23 02:26:22,079 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-11-23 02:26:22,088 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:21" (1/1) ...
[2021-11-23 02:26:22,088 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:21" (1/1) ...
[2021-11-23 02:26:22,104 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:21" (1/1) ...
[2021-11-23 02:26:22,110 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:21" (1/1) ...
[2021-11-23 02:26:22,151 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:21" (1/1) ...
[2021-11-23 02:26:22,173 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:21" (1/1) ...
[2021-11-23 02:26:22,193 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:21" (1/1) ...
[2021-11-23 02:26:22,203 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-23 02:26:22,216 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-23 02:26:22,216 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-11-23 02:26:22,216 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-11-23 02:26:22,217 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:21" (1/1) ...
[2021-11-23 02:26:22,228 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-23 02:26:22,239 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/z3
[2021-11-23 02:26:22,251 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-23 02:26:22,285 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-23 02:26:22,309 INFO  L130     BoogieDeclarations]: Found specification of procedure getClientPrivateKey
[2021-11-23 02:26:22,309 INFO  L138     BoogieDeclarations]: Found implementation of procedure getClientPrivateKey
[2021-11-23 02:26:22,309 INFO  L130     BoogieDeclarations]: Found specification of procedure getClientAddressBookSize
[2021-11-23 02:26:22,309 INFO  L138     BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize
[2021-11-23 02:26:22,310 INFO  L130     BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey
[2021-11-23 02:26:22,310 INFO  L138     BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey
[2021-11-23 02:26:22,310 INFO  L130     BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress
[2021-11-23 02:26:22,310 INFO  L138     BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress
[2021-11-23 02:26:22,310 INFO  L130     BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey
[2021-11-23 02:26:22,310 INFO  L138     BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey
[2021-11-23 02:26:22,311 INFO  L130     BoogieDeclarations]: Found specification of procedure getEmailTo
[2021-11-23 02:26:22,311 INFO  L138     BoogieDeclarations]: Found implementation of procedure getEmailTo
[2021-11-23 02:26:22,311 INFO  L130     BoogieDeclarations]: Found specification of procedure setEmailFrom
[2021-11-23 02:26:22,311 INFO  L138     BoogieDeclarations]: Found implementation of procedure setEmailFrom
[2021-11-23 02:26:22,311 INFO  L130     BoogieDeclarations]: Found specification of procedure isReadable
[2021-11-23 02:26:22,311 INFO  L138     BoogieDeclarations]: Found implementation of procedure isReadable
[2021-11-23 02:26:22,312 INFO  L130     BoogieDeclarations]: Found specification of procedure createClientKeyringEntry
[2021-11-23 02:26:22,312 INFO  L138     BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry
[2021-11-23 02:26:22,313 INFO  L130     BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted
[2021-11-23 02:26:22,313 INFO  L138     BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted
[2021-11-23 02:26:22,313 INFO  L130     BoogieDeclarations]: Found specification of procedure getEmailSignKey
[2021-11-23 02:26:22,313 INFO  L138     BoogieDeclarations]: Found implementation of procedure getEmailSignKey
[2021-11-23 02:26:22,313 INFO  L130     BoogieDeclarations]: Found specification of procedure chuckKeyAdd
[2021-11-23 02:26:22,313 INFO  L138     BoogieDeclarations]: Found implementation of procedure chuckKeyAdd
[2021-11-23 02:26:22,314 INFO  L130     BoogieDeclarations]: Found specification of procedure puts
[2021-11-23 02:26:22,314 INFO  L130     BoogieDeclarations]: Found specification of procedure getEmailFrom
[2021-11-23 02:26:22,314 INFO  L138     BoogieDeclarations]: Found implementation of procedure getEmailFrom
[2021-11-23 02:26:22,314 INFO  L130     BoogieDeclarations]: Found specification of procedure setClientId
[2021-11-23 02:26:22,315 INFO  L138     BoogieDeclarations]: Found implementation of procedure setClientId
[2021-11-23 02:26:22,315 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2021-11-23 02:26:22,315 INFO  L130     BoogieDeclarations]: Found specification of procedure isSigned
[2021-11-23 02:26:22,315 INFO  L138     BoogieDeclarations]: Found implementation of procedure isSigned
[2021-11-23 02:26:22,315 INFO  L130     BoogieDeclarations]: Found specification of procedure isKeyPairValid
[2021-11-23 02:26:22,315 INFO  L138     BoogieDeclarations]: Found implementation of procedure isKeyPairValid
[2021-11-23 02:26:22,316 INFO  L130     BoogieDeclarations]: Found specification of procedure setClientAddressBookSize
[2021-11-23 02:26:22,316 INFO  L138     BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize
[2021-11-23 02:26:22,316 INFO  L130     BoogieDeclarations]: Found specification of procedure setClientKeyringUser
[2021-11-23 02:26:22,316 INFO  L138     BoogieDeclarations]: Found implementation of procedure setClientKeyringUser
[2021-11-23 02:26:22,316 INFO  L130     BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey
[2021-11-23 02:26:22,316 INFO  L138     BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey
[2021-11-23 02:26:22,317 INFO  L130     BoogieDeclarations]: Found specification of procedure outgoing
[2021-11-23 02:26:22,317 INFO  L138     BoogieDeclarations]: Found implementation of procedure outgoing
[2021-11-23 02:26:22,317 INFO  L130     BoogieDeclarations]: Found specification of procedure isVerified
[2021-11-23 02:26:22,317 INFO  L138     BoogieDeclarations]: Found implementation of procedure isVerified
[2021-11-23 02:26:22,318 INFO  L130     BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt
[2021-11-23 02:26:22,318 INFO  L138     BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt
[2021-11-23 02:26:22,319 INFO  L130     BoogieDeclarations]: Found specification of procedure findPublicKey
[2021-11-23 02:26:22,319 INFO  L138     BoogieDeclarations]: Found implementation of procedure findPublicKey
[2021-11-23 02:26:22,320 INFO  L130     BoogieDeclarations]: Found specification of procedure sendEmail
[2021-11-23 02:26:22,322 INFO  L138     BoogieDeclarations]: Found implementation of procedure sendEmail
[2021-11-23 02:26:22,322 INFO  L130     BoogieDeclarations]: Found specification of procedure isEncrypted
[2021-11-23 02:26:22,322 INFO  L138     BoogieDeclarations]: Found implementation of procedure isEncrypted
[2021-11-23 02:26:22,322 INFO  L130     BoogieDeclarations]: Found specification of procedure setClientPrivateKey
[2021-11-23 02:26:22,322 INFO  L138     BoogieDeclarations]: Found implementation of procedure setClientPrivateKey
[2021-11-23 02:26:22,323 INFO  L130     BoogieDeclarations]: Found specification of procedure setEmailTo
[2021-11-23 02:26:22,323 INFO  L138     BoogieDeclarations]: Found implementation of procedure setEmailTo
[2021-11-23 02:26:22,323 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-11-23 02:26:22,324 INFO  L130     BoogieDeclarations]: Found specification of procedure generateKeyPair
[2021-11-23 02:26:22,324 INFO  L138     BoogieDeclarations]: Found implementation of procedure generateKeyPair
[2021-11-23 02:26:22,324 INFO  L130     BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress
[2021-11-23 02:26:22,324 INFO  L138     BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress
[2021-11-23 02:26:22,324 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-23 02:26:22,324 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-23 02:26:22,638 INFO  L236             CfgBuilder]: Building ICFG
[2021-11-23 02:26:22,641 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2021-11-23 02:26:23,760 INFO  L277             CfgBuilder]: Performing block encoding
[2021-11-23 02:26:24,380 INFO  L296             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-23 02:26:24,381 INFO  L301             CfgBuilder]: Removed 1 assume(true) statements.
[2021-11-23 02:26:24,384 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:26:24 BoogieIcfgContainer
[2021-11-23 02:26:24,385 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-23 02:26:24,394 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-23 02:26:24,395 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-11-23 02:26:24,398 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-11-23 02:26:24,399 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:26:20" (1/3) ...
[2021-11-23 02:26:24,399 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2162693a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:26:24, skipping insertion in model container
[2021-11-23 02:26:24,400 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:21" (2/3) ...
[2021-11-23 02:26:24,401 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2162693a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:26:24, skipping insertion in model container
[2021-11-23 02:26:24,401 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:26:24" (3/3) ...
[2021-11-23 02:26:24,402 INFO  L111   eAbstractionObserver]: Analyzing ICFG email_spec27_product34.cil.c
[2021-11-23 02:26:24,408 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-23 02:26:24,408 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-11-23 02:26:24,478 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-23 02:26:24,487 INFO  L339      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, mLoopAccelerationTechnique=FAST_UPR
[2021-11-23 02:26:24,488 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-11-23 02:26:24,524 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 237 states, 133 states have (on average 1.2857142857142858) internal successors, (171), 138 states have internal predecessors, (171), 73 states have call successors, (73), 29 states have call predecessors, (73), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73)
[2021-11-23 02:26:24,555 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 100
[2021-11-23 02:26:24,558 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-23 02:26:24,560 INFO  L514         BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-23 02:26:24,560 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-23 02:26:24,566 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-23 02:26:24,566 INFO  L85        PathProgramCache]: Analyzing trace with hash -361348639, now seen corresponding path program 1 times
[2021-11-23 02:26:24,574 INFO  L121   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2021-11-23 02:26:24,574 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841054784]
[2021-11-23 02:26:24,574 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-23 02:26:24,575 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-23 02:26:24,820 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-23 02:26:25,015 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2021-11-23 02:26:25,016 INFO  L139   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2021-11-23 02:26:25,016 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841054784]
[2021-11-23 02:26:25,017 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841054784] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-23 02:26:25,017 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-23 02:26:25,017 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-11-23 02:26:25,019 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484504439]
[2021-11-23 02:26:25,020 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-23 02:26:25,024 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-11-23 02:26:25,024 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2021-11-23 02:26:25,052 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-11-23 02:26:25,053 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-23 02:26:25,056 INFO  L87              Difference]: Start difference. First operand  has 237 states, 133 states have (on average 1.2857142857142858) internal successors, (171), 138 states have internal predecessors, (171), 73 states have call successors, (73), 29 states have call predecessors, (73), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) Second operand  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20)
[2021-11-23 02:26:25,306 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-23 02:26:25,308 INFO  L93              Difference]: Finished difference Result 382 states and 505 transitions.
[2021-11-23 02:26:25,309 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-11-23 02:26:25,311 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 99
[2021-11-23 02:26:25,312 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-23 02:26:25,329 INFO  L225             Difference]: With dead ends: 382
[2021-11-23 02:26:25,330 INFO  L226             Difference]: Without dead ends: 234
[2021-11-23 02:26:25,340 INFO  L932         BasicCegarLoop]: 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
[2021-11-23 02:26:25,345 INFO  L933         BasicCegarLoop]: 268 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2021-11-23 02:26:25,352 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 268 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2021-11-23 02:26:25,371 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 234 states.
[2021-11-23 02:26:25,439 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234.
[2021-11-23 02:26:25,443 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 234 states, 131 states have (on average 1.2595419847328244) internal successors, (165), 135 states have internal predecessors, (165), 73 states have call successors, (73), 29 states have call predecessors, (73), 29 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72)
[2021-11-23 02:26:25,449 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 310 transitions.
[2021-11-23 02:26:25,450 INFO  L78                 Accepts]: Start accepts. Automaton has 234 states and 310 transitions. Word has length 99
[2021-11-23 02:26:25,452 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-23 02:26:25,452 INFO  L470      AbstractCegarLoop]: Abstraction has 234 states and 310 transitions.
[2021-11-23 02:26:25,452 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20)
[2021-11-23 02:26:25,453 INFO  L276                IsEmpty]: Start isEmpty. Operand 234 states and 310 transitions.
[2021-11-23 02:26:25,463 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 112
[2021-11-23 02:26:25,463 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-23 02:26:25,463 INFO  L514         BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-23 02:26:25,464 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-11-23 02:26:25,465 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-23 02:26:25,466 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-23 02:26:25,466 INFO  L85        PathProgramCache]: Analyzing trace with hash -1999790941, now seen corresponding path program 1 times
[2021-11-23 02:26:25,466 INFO  L121   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2021-11-23 02:26:25,467 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158841495]
[2021-11-23 02:26:25,467 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-23 02:26:25,467 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-23 02:26:25,576 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-23 02:26:25,676 INFO  L134       CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2021-11-23 02:26:25,676 INFO  L139   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2021-11-23 02:26:25,676 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158841495]
[2021-11-23 02:26:25,676 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158841495] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-23 02:26:25,677 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-23 02:26:25,677 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-11-23 02:26:25,677 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653872865]
[2021-11-23 02:26:25,677 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-23 02:26:25,679 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-23 02:26:25,679 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2021-11-23 02:26:25,679 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-23 02:26:25,680 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-23 02:26:25,680 INFO  L87              Difference]: Start difference. First operand 234 states and 310 transitions. Second operand  has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23)
[2021-11-23 02:26:25,844 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-23 02:26:25,844 INFO  L93              Difference]: Finished difference Result 378 states and 490 transitions.
[2021-11-23 02:26:25,845 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-11-23 02:26:25,845 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 111
[2021-11-23 02:26:25,846 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-23 02:26:25,853 INFO  L225             Difference]: With dead ends: 378
[2021-11-23 02:26:25,853 INFO  L226             Difference]: Without dead ends: 236
[2021-11-23 02:26:25,858 INFO  L932         BasicCegarLoop]: 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
[2021-11-23 02:26:25,860 INFO  L933         BasicCegarLoop]: 265 mSDtfsCounter, 0 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2021-11-23 02:26:25,861 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 529 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2021-11-23 02:26:25,864 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 236 states.
[2021-11-23 02:26:25,897 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236.
[2021-11-23 02:26:25,898 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 236 states, 133 states have (on average 1.255639097744361) internal successors, (167), 137 states have internal predecessors, (167), 73 states have call successors, (73), 29 states have call predecessors, (73), 29 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72)
[2021-11-23 02:26:25,902 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 312 transitions.
[2021-11-23 02:26:25,903 INFO  L78                 Accepts]: Start accepts. Automaton has 236 states and 312 transitions. Word has length 111
[2021-11-23 02:26:25,905 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-23 02:26:25,906 INFO  L470      AbstractCegarLoop]: Abstraction has 236 states and 312 transitions.
[2021-11-23 02:26:25,906 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23)
[2021-11-23 02:26:25,906 INFO  L276                IsEmpty]: Start isEmpty. Operand 236 states and 312 transitions.
[2021-11-23 02:26:25,913 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 106
[2021-11-23 02:26:25,914 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-23 02:26:25,914 INFO  L514         BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-23 02:26:25,914 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-11-23 02:26:25,915 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-23 02:26:25,915 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-23 02:26:25,915 INFO  L85        PathProgramCache]: Analyzing trace with hash 1841764790, now seen corresponding path program 1 times
[2021-11-23 02:26:25,916 INFO  L121   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2021-11-23 02:26:25,916 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561442569]
[2021-11-23 02:26:25,917 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-23 02:26:25,918 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-23 02:26:25,979 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-23 02:26:26,107 INFO  L134       CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2021-11-23 02:26:26,107 INFO  L139   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2021-11-23 02:26:26,108 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561442569]
[2021-11-23 02:26:26,108 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561442569] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-23 02:26:26,109 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-23 02:26:26,109 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-11-23 02:26:26,109 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15321678]
[2021-11-23 02:26:26,110 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-23 02:26:26,111 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-23 02:26:26,112 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2021-11-23 02:26:26,113 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-23 02:26:26,113 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-23 02:26:26,113 INFO  L87              Difference]: Start difference. First operand 236 states and 312 transitions. Second operand  has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20)
[2021-11-23 02:26:26,283 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-23 02:26:26,284 INFO  L93              Difference]: Finished difference Result 507 states and 691 transitions.
[2021-11-23 02:26:26,284 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-11-23 02:26:26,284 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 105
[2021-11-23 02:26:26,285 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-23 02:26:26,289 INFO  L225             Difference]: With dead ends: 507
[2021-11-23 02:26:26,290 INFO  L226             Difference]: Without dead ends: 289
[2021-11-23 02:26:26,291 INFO  L932         BasicCegarLoop]: 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
[2021-11-23 02:26:26,299 INFO  L933         BasicCegarLoop]: 285 mSDtfsCounter, 59 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2021-11-23 02:26:26,300 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 545 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2021-11-23 02:26:26,302 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 289 states.
[2021-11-23 02:26:26,334 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 284.
[2021-11-23 02:26:26,335 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 284 states, 167 states have (on average 1.3293413173652695) internal successors, (222), 171 states have internal predecessors, (222), 87 states have call successors, (87), 29 states have call predecessors, (87), 29 states have return successors, (86), 85 states have call predecessors, (86), 86 states have call successors, (86)
[2021-11-23 02:26:26,339 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 395 transitions.
[2021-11-23 02:26:26,339 INFO  L78                 Accepts]: Start accepts. Automaton has 284 states and 395 transitions. Word has length 105
[2021-11-23 02:26:26,340 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-23 02:26:26,340 INFO  L470      AbstractCegarLoop]: Abstraction has 284 states and 395 transitions.
[2021-11-23 02:26:26,340 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20)
[2021-11-23 02:26:26,341 INFO  L276                IsEmpty]: Start isEmpty. Operand 284 states and 395 transitions.
[2021-11-23 02:26:26,347 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2021-11-23 02:26:26,347 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-23 02:26:26,348 INFO  L514         BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-23 02:26:26,348 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-11-23 02:26:26,349 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-23 02:26:26,350 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-23 02:26:26,350 INFO  L85        PathProgramCache]: Analyzing trace with hash 1548770012, now seen corresponding path program 1 times
[2021-11-23 02:26:26,350 INFO  L121   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2021-11-23 02:26:26,350 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267368525]
[2021-11-23 02:26:26,351 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-23 02:26:26,351 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-23 02:26:26,416 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-23 02:26:26,503 INFO  L134       CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2021-11-23 02:26:26,503 INFO  L139   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2021-11-23 02:26:26,503 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267368525]
[2021-11-23 02:26:26,504 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267368525] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-23 02:26:26,504 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617149987]
[2021-11-23 02:26:26,504 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-23 02:26:26,505 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-23 02:26:26,505 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/z3
[2021-11-23 02:26:26,509 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-23 02:26:26,532 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2021-11-23 02:26:26,866 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-23 02:26:26,873 INFO  L263         TraceCheckSpWp]: Trace formula consists of 1219 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-23 02:26:26,887 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-11-23 02:26:27,209 INFO  L134       CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2021-11-23 02:26:27,210 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-11-23 02:26:27,465 INFO  L134       CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2021-11-23 02:26:27,465 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617149987] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-23 02:26:27,467 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [506660976]
[2021-11-23 02:26:27,493 INFO  L159        IcfgInterpreter]: Started Sifa with 89 locations of interest
[2021-11-23 02:26:27,493 INFO  L166        IcfgInterpreter]: Building call graph
[2021-11-23 02:26:27,498 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2021-11-23 02:26:27,503 INFO  L176        IcfgInterpreter]: Starting interpretation
[2021-11-23 02:26:27,504 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2021-11-23 02:26:51,581 INFO  L197        IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs
[2021-11-23 02:26:51,937 INFO  L197        IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs
[2021-11-23 02:26:52,207 INFO  L180        IcfgInterpreter]: Interpretation finished
[2021-11-23 02:27:38,933 WARN  L227               SmtUtils]: Spent 6.56s on a formula simplification. DAG size of input: 508 DAG size of output: 385 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 02:27:54,133 WARN  L227               SmtUtils]: Spent 14.96s on a formula simplification. DAG size of input: 573 DAG size of output: 418 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 02:28:04,959 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSifa [506660976] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-23 02:28:04,959 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences.
[2021-11-23 02:28:04,960 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26
[2021-11-23 02:28:04,961 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120322726]
[2021-11-23 02:28:04,961 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-23 02:28:04,961 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2021-11-23 02:28:04,962 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2021-11-23 02:28:04,964 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2021-11-23 02:28:04,965 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650
[2021-11-23 02:28:04,965 INFO  L87              Difference]: Start difference. First operand 284 states and 395 transitions. Second operand  has 21 states, 16 states have (on average 3.375) internal successors, (54), 15 states have internal predecessors, (54), 7 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20)
[2021-11-23 02:28:11,343 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-23 02:28:11,343 INFO  L93              Difference]: Finished difference Result 615 states and 890 transitions.
[2021-11-23 02:28:11,344 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. 
[2021-11-23 02:28:11,344 INFO  L78                 Accepts]: Start accepts. Automaton has  has 21 states, 16 states have (on average 3.375) internal successors, (54), 15 states have internal predecessors, (54), 7 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 106
[2021-11-23 02:28:11,344 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-23 02:28:11,348 INFO  L225             Difference]: With dead ends: 615
[2021-11-23 02:28:11,348 INFO  L226             Difference]: Without dead ends: 349
[2021-11-23 02:28:11,350 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 72.8s TimeCoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650
[2021-11-23 02:28:11,351 INFO  L933         BasicCegarLoop]: 290 mSDtfsCounter, 92 mSDsluCounter, 3753 mSDsCounter, 0 mSdLazyCounter, 1941 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 3890 SdHoareTripleChecker+Invalid, 1956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time
[2021-11-23 02:28:11,351 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 3890 Invalid, 1956 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 1941 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time]
[2021-11-23 02:28:11,352 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 349 states.
[2021-11-23 02:28:11,412 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 307.
[2021-11-23 02:28:11,413 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 307 states, 189 states have (on average 1.3492063492063493) internal successors, (255), 193 states have internal predecessors, (255), 87 states have call successors, (87), 30 states have call predecessors, (87), 30 states have return successors, (86), 85 states have call predecessors, (86), 86 states have call successors, (86)
[2021-11-23 02:28:11,417 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 428 transitions.
[2021-11-23 02:28:11,417 INFO  L78                 Accepts]: Start accepts. Automaton has 307 states and 428 transitions. Word has length 106
[2021-11-23 02:28:11,418 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-23 02:28:11,418 INFO  L470      AbstractCegarLoop]: Abstraction has 307 states and 428 transitions.
[2021-11-23 02:28:11,418 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 21 states, 16 states have (on average 3.375) internal successors, (54), 15 states have internal predecessors, (54), 7 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20)
[2021-11-23 02:28:11,418 INFO  L276                IsEmpty]: Start isEmpty. Operand 307 states and 428 transitions.
[2021-11-23 02:28:11,421 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 123
[2021-11-23 02:28:11,421 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-23 02:28:11,422 INFO  L514         BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-23 02:28:11,461 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2021-11-23 02:28:11,640 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-23 02:28:11,641 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-23 02:28:11,641 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-23 02:28:11,641 INFO  L85        PathProgramCache]: Analyzing trace with hash 1362641946, now seen corresponding path program 1 times
[2021-11-23 02:28:11,641 INFO  L121   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2021-11-23 02:28:11,641 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412912580]
[2021-11-23 02:28:11,642 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-23 02:28:11,642 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-23 02:28:11,663 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-23 02:28:11,707 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked.
[2021-11-23 02:28:11,708 INFO  L139   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2021-11-23 02:28:11,708 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412912580]
[2021-11-23 02:28:11,708 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412912580] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-23 02:28:11,708 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-23 02:28:11,708 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-11-23 02:28:11,709 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965049704]
[2021-11-23 02:28:11,709 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-23 02:28:11,709 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-23 02:28:11,710 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2021-11-23 02:28:11,710 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-23 02:28:11,710 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-23 02:28:11,711 INFO  L87              Difference]: Start difference. First operand 307 states and 428 transitions. Second operand  has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24)
[2021-11-23 02:28:11,896 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-23 02:28:11,897 INFO  L93              Difference]: Finished difference Result 717 states and 1036 transitions.
[2021-11-23 02:28:11,897 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-11-23 02:28:11,897 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 122
[2021-11-23 02:28:11,898 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-23 02:28:11,902 INFO  L225             Difference]: With dead ends: 717
[2021-11-23 02:28:11,903 INFO  L226             Difference]: Without dead ends: 434
[2021-11-23 02:28:11,904 INFO  L932         BasicCegarLoop]: 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
[2021-11-23 02:28:11,907 INFO  L933         BasicCegarLoop]: 292 mSDtfsCounter, 57 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2021-11-23 02:28:11,908 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 558 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2021-11-23 02:28:11,910 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 434 states.
[2021-11-23 02:28:12,015 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 429.
[2021-11-23 02:28:12,017 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 429 states, 280 states have (on average 1.4107142857142858) internal successors, (395), 284 states have internal predecessors, (395), 118 states have call successors, (118), 30 states have call predecessors, (118), 30 states have return successors, (117), 116 states have call predecessors, (117), 117 states have call successors, (117)
[2021-11-23 02:28:12,021 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 630 transitions.
[2021-11-23 02:28:12,021 INFO  L78                 Accepts]: Start accepts. Automaton has 429 states and 630 transitions. Word has length 122
[2021-11-23 02:28:12,022 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-23 02:28:12,022 INFO  L470      AbstractCegarLoop]: Abstraction has 429 states and 630 transitions.
[2021-11-23 02:28:12,023 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24)
[2021-11-23 02:28:12,023 INFO  L276                IsEmpty]: Start isEmpty. Operand 429 states and 630 transitions.
[2021-11-23 02:28:12,027 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 113
[2021-11-23 02:28:12,027 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-23 02:28:12,027 INFO  L514         BasicCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-23 02:28:12,028 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-11-23 02:28:12,028 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-23 02:28:12,028 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-23 02:28:12,029 INFO  L85        PathProgramCache]: Analyzing trace with hash 410646492, now seen corresponding path program 1 times
[2021-11-23 02:28:12,029 INFO  L121   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2021-11-23 02:28:12,029 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880303063]
[2021-11-23 02:28:12,029 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-23 02:28:12,029 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-23 02:28:12,059 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-23 02:28:12,135 INFO  L134       CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2021-11-23 02:28:12,135 INFO  L139   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2021-11-23 02:28:12,136 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880303063]
[2021-11-23 02:28:12,136 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880303063] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-23 02:28:12,136 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970283698]
[2021-11-23 02:28:12,136 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-23 02:28:12,136 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-23 02:28:12,137 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/z3
[2021-11-23 02:28:12,137 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-23 02:28:12,156 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2021-11-23 02:28:12,449 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-23 02:28:12,455 INFO  L263         TraceCheckSpWp]: Trace formula consists of 1249 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-23 02:28:12,468 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-11-23 02:28:12,674 INFO  L134       CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2021-11-23 02:28:12,675 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-11-23 02:28:12,976 INFO  L134       CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2021-11-23 02:28:12,979 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970283698] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-23 02:28:12,980 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1395316639]
[2021-11-23 02:28:12,988 INFO  L159        IcfgInterpreter]: Started Sifa with 93 locations of interest
[2021-11-23 02:28:12,988 INFO  L166        IcfgInterpreter]: Building call graph
[2021-11-23 02:28:12,990 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2021-11-23 02:28:12,990 INFO  L176        IcfgInterpreter]: Starting interpretation
[2021-11-23 02:28:12,991 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2021-11-23 02:28:45,501 INFO  L197        IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs
[2021-11-23 02:28:45,763 INFO  L197        IcfgInterpreter]: Interpreting procedure sendEmail with input of size 263 for LOIs
[2021-11-23 02:28:47,558 INFO  L197        IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 233 for LOIs
[2021-11-23 02:28:47,599 INFO  L197        IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs
[2021-11-23 02:28:47,888 INFO  L197        IcfgInterpreter]: Interpreting procedure outgoing with input of size 265 for LOIs
[2021-11-23 02:28:51,172 INFO  L197        IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 273 for LOIs
[2021-11-23 02:29:05,394 INFO  L197        IcfgInterpreter]: Interpreting procedure isReadable with input of size 247 for LOIs
[2021-11-23 02:29:06,017 INFO  L197        IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 247 for LOIs
[2021-11-23 02:29:06,062 INFO  L197        IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 454 for LOIs
[2021-11-23 02:29:06,531 INFO  L197        IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 245 for LOIs
[2021-11-23 02:29:06,608 INFO  L197        IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 433 for LOIs
[2021-11-23 02:29:07,085 INFO  L197        IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 475 for LOIs
[2021-11-23 02:29:08,688 INFO  L197        IcfgInterpreter]: Interpreting procedure isVerified with input of size 247 for LOIs
[2021-11-23 02:29:08,732 INFO  L197        IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 250 for LOIs
[2021-11-23 02:29:08,784 INFO  L180        IcfgInterpreter]: Interpretation finished
[2021-11-23 02:29:56,658 WARN  L227               SmtUtils]: Spent 6.53s on a formula simplification. DAG size of input: 508 DAG size of output: 385 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 02:30:06,822 WARN  L227               SmtUtils]: Spent 8.74s on a formula simplification. DAG size of input: 584 DAG size of output: 333 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 02:30:17,767 WARN  L227               SmtUtils]: Spent 9.50s on a formula simplification. DAG size of input: 586 DAG size of output: 335 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 02:30:37,613 WARN  L227               SmtUtils]: Spent 18.47s on a formula simplification. DAG size of input: 585 DAG size of output: 457 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 02:30:57,509 WARN  L227               SmtUtils]: Spent 18.52s on a formula simplification. DAG size of input: 583 DAG size of output: 455 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 02:31:09,037 WARN  L227               SmtUtils]: Spent 5.52s on a formula simplification. DAG size of input: 568 DAG size of output: 361 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 02:31:18,635 WARN  L227               SmtUtils]: Spent 6.02s on a formula simplification. DAG size of input: 475 DAG size of output: 275 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 02:31:45,518 WARN  L227               SmtUtils]: Spent 9.90s on a formula simplification. DAG size of input: 454 DAG size of output: 345 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 02:31:57,889 WARN  L227               SmtUtils]: Spent 10.43s on a formula simplification. DAG size of input: 480 DAG size of output: 360 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 02:32:22,354 WARN  L227               SmtUtils]: Spent 10.16s on a formula simplification. DAG size of input: 433 DAG size of output: 340 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 02:32:36,614 WARN  L227               SmtUtils]: Spent 11.02s on a formula simplification. DAG size of input: 452 DAG size of output: 348 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 02:34:02,638 WARN  L227               SmtUtils]: Spent 16.89s on a formula simplification. DAG size of input: 585 DAG size of output: 411 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 02:34:11,105 WARN  L227               SmtUtils]: Spent 6.44s on a formula simplification. DAG size of input: 585 DAG size of output: 384 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 02:34:19,509 WARN  L227               SmtUtils]: Spent 6.92s on a formula simplification. DAG size of input: 579 DAG size of output: 409 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 02:34:37,083 WARN  L227               SmtUtils]: Spent 6.80s on a formula simplification. DAG size of input: 633 DAG size of output: 469 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 02:34:43,981 WARN  L227               SmtUtils]: Spent 5.47s on a formula simplification. DAG size of input: 633 DAG size of output: 447 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 02:34:43,983 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSifa [1395316639] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-23 02:34:43,983 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences.
[2021-11-23 02:34:43,984 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [76] imperfect sequences [4, 4, 4] total 82
[2021-11-23 02:34:43,984 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417709900]
[2021-11-23 02:34:43,984 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-23 02:34:43,985 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 77 states
[2021-11-23 02:34:43,985 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2021-11-23 02:34:43,986 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants.
[2021-11-23 02:34:43,988 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=6378, Unknown=0, NotChecked=0, Total=6642
[2021-11-23 02:34:43,989 INFO  L87              Difference]: Start difference. First operand 429 states and 630 transitions. Second operand  has 77 states, 49 states have (on average 1.163265306122449) internal successors, (57), 46 states have internal predecessors, (57), 23 states have call successors, (24), 15 states have call predecessors, (24), 12 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21)
[2021-11-23 02:34:57,519 WARN  L227               SmtUtils]: Spent 5.21s on a formula simplification. DAG size of input: 542 DAG size of output: 369 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 02:35:11,771 WARN  L227               SmtUtils]: Spent 13.66s on a formula simplification. DAG size of input: 464 DAG size of output: 450 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 02:35:25,887 WARN  L227               SmtUtils]: Spent 13.62s on a formula simplification. DAG size of input: 462 DAG size of output: 448 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 02:35:57,915 WARN  L227               SmtUtils]: Spent 7.29s on a formula simplification. DAG size of input: 585 DAG size of output: 343 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 02:36:40,225 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-23 02:36:40,225 INFO  L93              Difference]: Finished difference Result 1002 states and 1503 transitions.
[2021-11-23 02:36:40,226 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. 
[2021-11-23 02:36:40,226 INFO  L78                 Accepts]: Start accepts. Automaton has  has 77 states, 49 states have (on average 1.163265306122449) internal successors, (57), 46 states have internal predecessors, (57), 23 states have call successors, (24), 15 states have call predecessors, (24), 12 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 112
[2021-11-23 02:36:40,226 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-23 02:36:40,232 INFO  L225             Difference]: With dead ends: 1002
[2021-11-23 02:36:40,232 INFO  L226             Difference]: Without dead ends: 636
[2021-11-23 02:36:40,236 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 254 SyntacticMatches, 4 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2271 ImplicationChecksByTransitivity, 420.0s TimeCoverageRelationStatistics Valid=369, Invalid=9333, Unknown=0, NotChecked=0, Total=9702
[2021-11-23 02:36:40,237 INFO  L933         BasicCegarLoop]: 270 mSDtfsCounter, 274 mSDsluCounter, 8483 mSDsCounter, 0 mSdLazyCounter, 11240 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 8411 SdHoareTripleChecker+Invalid, 11310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 11240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.9s IncrementalHoareTripleChecker+Time
[2021-11-23 02:36:40,237 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 8411 Invalid, 11310 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [70 Valid, 11240 Invalid, 0 Unknown, 0 Unchecked, 30.9s Time]
[2021-11-23 02:36:40,239 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 636 states.
[2021-11-23 02:36:40,387 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 522.
[2021-11-23 02:36:40,388 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 522 states, 338 states have (on average 1.3757396449704142) internal successors, (465), 345 states have internal predecessors, (465), 142 states have call successors, (142), 43 states have call predecessors, (142), 41 states have return successors, (142), 135 states have call predecessors, (142), 141 states have call successors, (142)
[2021-11-23 02:36:40,393 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 749 transitions.
[2021-11-23 02:36:40,393 INFO  L78                 Accepts]: Start accepts. Automaton has 522 states and 749 transitions. Word has length 112
[2021-11-23 02:36:40,394 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-23 02:36:40,394 INFO  L470      AbstractCegarLoop]: Abstraction has 522 states and 749 transitions.
[2021-11-23 02:36:40,394 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 77 states, 49 states have (on average 1.163265306122449) internal successors, (57), 46 states have internal predecessors, (57), 23 states have call successors, (24), 15 states have call predecessors, (24), 12 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21)
[2021-11-23 02:36:40,394 INFO  L276                IsEmpty]: Start isEmpty. Operand 522 states and 749 transitions.
[2021-11-23 02:36:40,398 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 116
[2021-11-23 02:36:40,398 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-23 02:36:40,398 INFO  L514         BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-23 02:36:40,436 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2021-11-23 02:36:40,624 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2021-11-23 02:36:40,625 INFO  L402      AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-23 02:36:40,625 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-23 02:36:40,625 INFO  L85        PathProgramCache]: Analyzing trace with hash -537705352, now seen corresponding path program 1 times
[2021-11-23 02:36:40,625 INFO  L121   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2021-11-23 02:36:40,625 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513077504]
[2021-11-23 02:36:40,625 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-23 02:36:40,625 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-23 02:36:40,655 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-23 02:36:40,702 INFO  L134       CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2021-11-23 02:36:40,702 INFO  L139   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2021-11-23 02:36:40,702 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513077504]
[2021-11-23 02:36:40,703 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513077504] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-23 02:36:40,703 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794882620]
[2021-11-23 02:36:40,703 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-23 02:36:40,703 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-23 02:36:40,703 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/z3
[2021-11-23 02:36:40,704 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-23 02:36:40,723 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f6d4d18-a922-4ad5-b43e-1030b13098ab/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2021-11-23 02:36:41,021 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-23 02:36:41,027 INFO  L263         TraceCheckSpWp]: Trace formula consists of 1355 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-23 02:36:41,032 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-11-23 02:36:41,215 INFO  L134       CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2021-11-23 02:36:41,215 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-11-23 02:36:41,424 INFO  L134       CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2021-11-23 02:36:41,424 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794882620] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-23 02:36:41,424 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1251033493]
[2021-11-23 02:36:41,428 INFO  L159        IcfgInterpreter]: Started Sifa with 98 locations of interest
[2021-11-23 02:36:41,429 INFO  L166        IcfgInterpreter]: Building call graph
[2021-11-23 02:36:41,431 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2021-11-23 02:36:41,431 INFO  L176        IcfgInterpreter]: Starting interpretation
[2021-11-23 02:36:41,432 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs