./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product33.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_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/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_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/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_6ee32a62-43be-4b22-83ff-a36b8c230c42/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 3f09e5adfeee9c308429dc6a96730836c8dd32d7c1bd2833eb57924261e76e35
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-aef121e
[2021-11-23 03:36:43,157 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-11-23 03:36:43,160 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-23 03:36:43,216 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-23 03:36:43,217 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-23 03:36:43,218 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-23 03:36:43,220 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-23 03:36:43,223 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-23 03:36:43,225 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-23 03:36:43,226 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-23 03:36:43,228 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-11-23 03:36:43,229 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-23 03:36:43,230 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-23 03:36:43,231 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-23 03:36:43,233 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-23 03:36:43,235 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-23 03:36:43,236 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-23 03:36:43,237 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-23 03:36:43,240 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-23 03:36:43,242 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-23 03:36:43,244 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-23 03:36:43,253 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-23 03:36:43,254 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-11-23 03:36:43,256 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-23 03:36:43,261 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-23 03:36:43,266 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-23 03:36:43,267 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-23 03:36:43,268 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-23 03:36:43,270 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-23 03:36:43,271 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-23 03:36:43,272 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-23 03:36:43,273 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-23 03:36:43,275 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-23 03:36:43,276 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-23 03:36:43,278 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-23 03:36:43,279 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-23 03:36:43,279 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-23 03:36:43,280 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-23 03:36:43,280 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-23 03:36:43,281 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-23 03:36:43,282 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-11-23 03:36:43,283 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf
[2021-11-23 03:36:43,344 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-11-23 03:36:43,344 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-23 03:36:43,345 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-23 03:36:43,345 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-23 03:36:43,352 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-23 03:36:43,352 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-23 03:36:43,352 INFO  L138        SettingsManager]:  * User list type=DISABLED
[2021-11-23 03:36:43,353 INFO  L136        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2021-11-23 03:36:43,353 INFO  L138        SettingsManager]:  * Explicit value domain=true
[2021-11-23 03:36:43,353 INFO  L138        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2021-11-23 03:36:43,354 INFO  L138        SettingsManager]:  * Octagon Domain=false
[2021-11-23 03:36:43,355 INFO  L138        SettingsManager]:  * Abstract domain=CompoundDomain
[2021-11-23 03:36:43,355 INFO  L138        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2021-11-23 03:36:43,356 INFO  L138        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2021-11-23 03:36:43,356 INFO  L138        SettingsManager]:  * Interval Domain=false
[2021-11-23 03:36:43,357 INFO  L136        SettingsManager]: Preferences of Sifa differ from their defaults:
[2021-11-23 03:36:43,357 INFO  L138        SettingsManager]:  * Call Summarizer=TopInputCallSummarizer
[2021-11-23 03:36:43,357 INFO  L138        SettingsManager]:  * Simplification Technique=POLY_PAC
[2021-11-23 03:36:43,358 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-23 03:36:43,359 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-11-23 03:36:43,359 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-11-23 03:36:43,359 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-11-23 03:36:43,360 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-11-23 03:36:43,360 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-11-23 03:36:43,360 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-23 03:36:43,360 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-11-23 03:36:43,362 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-11-23 03:36:43,363 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-11-23 03:36:43,363 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-11-23 03:36:43,364 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-11-23 03:36:43,365 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-23 03:36:43,365 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-11-23 03:36:43,366 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-23 03:36:43,366 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-23 03:36:43,367 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-11-23 03:36:43,367 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-23 03:36:43,367 INFO  L138        SettingsManager]:  * Trace refinement strategy=SIFA_TAIPAN
[2021-11-23 03:36:43,368 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-11-23 03:36:43,368 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-23 03:36:43,368 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-11-23 03:36:43,368 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2021-11-23 03:36:43,369 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_6ee32a62-43be-4b22-83ff-a36b8c230c42/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_6ee32a62-43be-4b22-83ff-a36b8c230c42/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 -> 3f09e5adfeee9c308429dc6a96730836c8dd32d7c1bd2833eb57924261e76e35
[2021-11-23 03:36:43,676 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-23 03:36:43,702 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-23 03:36:43,705 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-23 03:36:43,707 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-11-23 03:36:43,707 INFO  L275        PluginConnector]: CDTParser initialized
[2021-11-23 03:36:43,709 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/email_spec27_product33.cil.c
[2021-11-23 03:36:43,799 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/data/36f3b0e53/137e9b6b11674afba5907cdf68d36778/FLAG093d5ddb6
[2021-11-23 03:36:44,440 INFO  L306              CDTParser]: Found 1 translation units.
[2021-11-23 03:36:44,446 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/sv-benchmarks/c/product-lines/email_spec27_product33.cil.c
[2021-11-23 03:36:44,481 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/data/36f3b0e53/137e9b6b11674afba5907cdf68d36778/FLAG093d5ddb6
[2021-11-23 03:36:44,626 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/data/36f3b0e53/137e9b6b11674afba5907cdf68d36778
[2021-11-23 03:36:44,628 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-23 03:36:44,630 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-23 03:36:44,631 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-23 03:36:44,631 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-23 03:36:44,641 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-23 03:36:44,642 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:36:44" (1/1) ...
[2021-11-23 03:36:44,644 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2350ebf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:44, skipping insertion in model container
[2021-11-23 03:36:44,645 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:36:44" (1/1) ...
[2021-11-23 03:36:44,652 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-11-23 03:36:44,792 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-11-23 03:36:45,027 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_6ee32a62-43be-4b22-83ff-a36b8c230c42/sv-benchmarks/c/product-lines/email_spec27_product33.cil.c[1543,1556]
[2021-11-23 03:36:45,462 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-11-23 03:36:45,473 INFO  L203         MainTranslator]: Completed pre-run
[2021-11-23 03:36:45,486 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_6ee32a62-43be-4b22-83ff-a36b8c230c42/sv-benchmarks/c/product-lines/email_spec27_product33.cil.c[1543,1556]
[2021-11-23 03:36:45,615 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-11-23 03:36:45,683 INFO  L208         MainTranslator]: Completed translation
[2021-11-23 03:36:45,683 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:45 WrapperNode
[2021-11-23 03:36:45,683 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-23 03:36:45,685 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-23 03:36:45,685 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-23 03:36:45,685 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-23 03:36:45,692 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:45" (1/1) ...
[2021-11-23 03:36:45,760 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:45" (1/1) ...
[2021-11-23 03:36:45,835 INFO  L137                Inliner]: procedures = 134, calls = 229, calls flagged for inlining = 64, calls inlined = 59, statements flattened = 1062
[2021-11-23 03:36:45,837 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-23 03:36:45,838 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-23 03:36:45,839 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-23 03:36:45,839 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-11-23 03:36:45,848 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:45" (1/1) ...
[2021-11-23 03:36:45,848 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:45" (1/1) ...
[2021-11-23 03:36:45,854 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:45" (1/1) ...
[2021-11-23 03:36:45,855 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:45" (1/1) ...
[2021-11-23 03:36:45,877 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:45" (1/1) ...
[2021-11-23 03:36:45,888 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:45" (1/1) ...
[2021-11-23 03:36:45,893 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:45" (1/1) ...
[2021-11-23 03:36:45,903 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-23 03:36:45,904 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-23 03:36:45,904 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-11-23 03:36:45,904 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-11-23 03:36:45,905 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:45" (1/1) ...
[2021-11-23 03:36:45,929 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-23 03:36:45,945 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/z3
[2021-11-23 03:36:45,971 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-23 03:36:45,981 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-23 03:36:46,014 INFO  L130     BoogieDeclarations]: Found specification of procedure getClientPrivateKey
[2021-11-23 03:36:46,015 INFO  L138     BoogieDeclarations]: Found implementation of procedure getClientPrivateKey
[2021-11-23 03:36:46,015 INFO  L130     BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey
[2021-11-23 03:36:46,015 INFO  L138     BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey
[2021-11-23 03:36:46,015 INFO  L130     BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey
[2021-11-23 03:36:46,015 INFO  L138     BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey
[2021-11-23 03:36:46,016 INFO  L130     BoogieDeclarations]: Found specification of procedure getEmailTo
[2021-11-23 03:36:46,016 INFO  L138     BoogieDeclarations]: Found implementation of procedure getEmailTo
[2021-11-23 03:36:46,016 INFO  L130     BoogieDeclarations]: Found specification of procedure setEmailFrom
[2021-11-23 03:36:46,016 INFO  L138     BoogieDeclarations]: Found implementation of procedure setEmailFrom
[2021-11-23 03:36:46,016 INFO  L130     BoogieDeclarations]: Found specification of procedure isReadable
[2021-11-23 03:36:46,016 INFO  L138     BoogieDeclarations]: Found implementation of procedure isReadable
[2021-11-23 03:36:46,016 INFO  L130     BoogieDeclarations]: Found specification of procedure createClientKeyringEntry
[2021-11-23 03:36:46,017 INFO  L138     BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry
[2021-11-23 03:36:46,017 INFO  L130     BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted
[2021-11-23 03:36:46,017 INFO  L138     BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted
[2021-11-23 03:36:46,017 INFO  L130     BoogieDeclarations]: Found specification of procedure getEmailSignKey
[2021-11-23 03:36:46,017 INFO  L138     BoogieDeclarations]: Found implementation of procedure getEmailSignKey
[2021-11-23 03:36:46,017 INFO  L130     BoogieDeclarations]: Found specification of procedure chuckKeyAdd
[2021-11-23 03:36:46,017 INFO  L138     BoogieDeclarations]: Found implementation of procedure chuckKeyAdd
[2021-11-23 03:36:46,018 INFO  L130     BoogieDeclarations]: Found specification of procedure puts
[2021-11-23 03:36:46,018 INFO  L130     BoogieDeclarations]: Found specification of procedure getEmailFrom
[2021-11-23 03:36:46,018 INFO  L138     BoogieDeclarations]: Found implementation of procedure getEmailFrom
[2021-11-23 03:36:46,018 INFO  L130     BoogieDeclarations]: Found specification of procedure queue
[2021-11-23 03:36:46,018 INFO  L138     BoogieDeclarations]: Found implementation of procedure queue
[2021-11-23 03:36:46,018 INFO  L130     BoogieDeclarations]: Found specification of procedure setClientId
[2021-11-23 03:36:46,018 INFO  L138     BoogieDeclarations]: Found implementation of procedure setClientId
[2021-11-23 03:36:46,019 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2021-11-23 03:36:46,019 INFO  L130     BoogieDeclarations]: Found specification of procedure isSigned
[2021-11-23 03:36:46,019 INFO  L138     BoogieDeclarations]: Found implementation of procedure isSigned
[2021-11-23 03:36:46,019 INFO  L130     BoogieDeclarations]: Found specification of procedure isKeyPairValid
[2021-11-23 03:36:46,019 INFO  L138     BoogieDeclarations]: Found implementation of procedure isKeyPairValid
[2021-11-23 03:36:46,019 INFO  L130     BoogieDeclarations]: Found specification of procedure setClientKeyringUser
[2021-11-23 03:36:46,019 INFO  L138     BoogieDeclarations]: Found implementation of procedure setClientKeyringUser
[2021-11-23 03:36:46,020 INFO  L130     BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey
[2021-11-23 03:36:46,020 INFO  L138     BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey
[2021-11-23 03:36:46,020 INFO  L130     BoogieDeclarations]: Found specification of procedure outgoing
[2021-11-23 03:36:46,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure outgoing
[2021-11-23 03:36:46,021 INFO  L130     BoogieDeclarations]: Found specification of procedure isVerified
[2021-11-23 03:36:46,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure isVerified
[2021-11-23 03:36:46,021 INFO  L130     BoogieDeclarations]: Found specification of procedure findPublicKey
[2021-11-23 03:36:46,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure findPublicKey
[2021-11-23 03:36:46,022 INFO  L130     BoogieDeclarations]: Found specification of procedure sendEmail
[2021-11-23 03:36:46,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure sendEmail
[2021-11-23 03:36:46,022 INFO  L130     BoogieDeclarations]: Found specification of procedure isEncrypted
[2021-11-23 03:36:46,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure isEncrypted
[2021-11-23 03:36:46,023 INFO  L130     BoogieDeclarations]: Found specification of procedure setClientPrivateKey
[2021-11-23 03:36:46,024 INFO  L138     BoogieDeclarations]: Found implementation of procedure setClientPrivateKey
[2021-11-23 03:36:46,024 INFO  L130     BoogieDeclarations]: Found specification of procedure setEmailTo
[2021-11-23 03:36:46,025 INFO  L138     BoogieDeclarations]: Found implementation of procedure setEmailTo
[2021-11-23 03:36:46,025 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-11-23 03:36:46,025 INFO  L130     BoogieDeclarations]: Found specification of procedure generateKeyPair
[2021-11-23 03:36:46,025 INFO  L138     BoogieDeclarations]: Found implementation of procedure generateKeyPair
[2021-11-23 03:36:46,025 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-23 03:36:46,026 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-23 03:36:46,386 INFO  L236             CfgBuilder]: Building ICFG
[2021-11-23 03:36:46,389 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2021-11-23 03:36:47,224 INFO  L277             CfgBuilder]: Performing block encoding
[2021-11-23 03:36:47,617 INFO  L296             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-23 03:36:47,617 INFO  L301             CfgBuilder]: Removed 1 assume(true) statements.
[2021-11-23 03:36:47,621 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:36:47 BoogieIcfgContainer
[2021-11-23 03:36:47,621 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-23 03:36:47,623 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-23 03:36:47,623 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-11-23 03:36:47,626 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-11-23 03:36:47,627 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:36:44" (1/3) ...
[2021-11-23 03:36:47,628 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb5564a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:36:47, skipping insertion in model container
[2021-11-23 03:36:47,628 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:45" (2/3) ...
[2021-11-23 03:36:47,629 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb5564a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:36:47, skipping insertion in model container
[2021-11-23 03:36:47,629 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:36:47" (3/3) ...
[2021-11-23 03:36:47,630 INFO  L111   eAbstractionObserver]: Analyzing ICFG email_spec27_product33.cil.c
[2021-11-23 03:36:47,639 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-23 03:36:47,639 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-11-23 03:36:47,710 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-23 03:36:47,715 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 03:36:47,716 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-11-23 03:36:47,744 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 218 states, 126 states have (on average 1.3015873015873016) internal successors, (164), 130 states have internal predecessors, (164), 65 states have call successors, (65), 25 states have call predecessors, (65), 25 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65)
[2021-11-23 03:36:47,758 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 93
[2021-11-23 03:36:47,759 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-23 03:36:47,760 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]
[2021-11-23 03:36:47,760 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-23 03:36:47,765 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-23 03:36:47,766 INFO  L85        PathProgramCache]: Analyzing trace with hash -1578590042, now seen corresponding path program 1 times
[2021-11-23 03:36:47,775 INFO  L121   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2021-11-23 03:36:47,776 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040267022]
[2021-11-23 03:36:47,776 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-23 03:36:47,777 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-23 03:36:48,042 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-23 03:36:48,231 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 03:36:48,232 INFO  L139   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2021-11-23 03:36:48,232 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040267022]
[2021-11-23 03:36:48,233 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040267022] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-23 03:36:48,233 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-23 03:36:48,233 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-11-23 03:36:48,235 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904244939]
[2021-11-23 03:36:48,235 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-23 03:36:48,247 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-11-23 03:36:48,247 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2021-11-23 03:36:48,282 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-11-23 03:36:48,283 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-23 03:36:48,286 INFO  L87              Difference]: Start difference. First operand  has 218 states, 126 states have (on average 1.3015873015873016) internal successors, (164), 130 states have internal predecessors, (164), 65 states have call successors, (65), 25 states have call predecessors, (65), 25 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Second operand  has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19)
[2021-11-23 03:36:48,516 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-23 03:36:48,517 INFO  L93              Difference]: Finished difference Result 353 states and 466 transitions.
[2021-11-23 03:36:48,518 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-11-23 03:36:48,519 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 92
[2021-11-23 03:36:48,520 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-23 03:36:48,531 INFO  L225             Difference]: With dead ends: 353
[2021-11-23 03:36:48,531 INFO  L226             Difference]: Without dead ends: 215
[2021-11-23 03:36:48,536 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 03:36:48,540 INFO  L933         BasicCegarLoop]: 249 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2021-11-23 03:36:48,541 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 249 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2021-11-23 03:36:48,556 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 215 states.
[2021-11-23 03:36:48,594 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215.
[2021-11-23 03:36:48,596 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 215 states, 124 states have (on average 1.2741935483870968) internal successors, (158), 127 states have internal predecessors, (158), 65 states have call successors, (65), 25 states have call predecessors, (65), 25 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64)
[2021-11-23 03:36:48,600 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 287 transitions.
[2021-11-23 03:36:48,602 INFO  L78                 Accepts]: Start accepts. Automaton has 215 states and 287 transitions. Word has length 92
[2021-11-23 03:36:48,603 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-23 03:36:48,604 INFO  L470      AbstractCegarLoop]: Abstraction has 215 states and 287 transitions.
[2021-11-23 03:36:48,604 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19)
[2021-11-23 03:36:48,604 INFO  L276                IsEmpty]: Start isEmpty. Operand 215 states and 287 transitions.
[2021-11-23 03:36:48,610 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 94
[2021-11-23 03:36:48,611 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-23 03:36:48,611 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]
[2021-11-23 03:36:48,611 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-11-23 03:36:48,612 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-23 03:36:48,612 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-23 03:36:48,612 INFO  L85        PathProgramCache]: Analyzing trace with hash -916514765, now seen corresponding path program 1 times
[2021-11-23 03:36:48,613 INFO  L121   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2021-11-23 03:36:48,613 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113760930]
[2021-11-23 03:36:48,613 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-23 03:36:48,613 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-23 03:36:48,658 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-23 03:36:48,785 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 03:36:48,786 INFO  L139   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2021-11-23 03:36:48,786 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113760930]
[2021-11-23 03:36:48,787 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113760930] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-23 03:36:48,787 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-23 03:36:48,787 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-11-23 03:36:48,787 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629993110]
[2021-11-23 03:36:48,787 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-23 03:36:48,790 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-23 03:36:48,790 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2021-11-23 03:36:48,791 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-23 03:36:48,791 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-23 03:36:48,793 INFO  L87              Difference]: Start difference. First operand 215 states and 287 transitions. Second operand  has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19)
[2021-11-23 03:36:48,957 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-23 03:36:48,957 INFO  L93              Difference]: Finished difference Result 349 states and 454 transitions.
[2021-11-23 03:36:48,958 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-11-23 03:36:48,958 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 93
[2021-11-23 03:36:48,960 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-23 03:36:48,966 INFO  L225             Difference]: With dead ends: 349
[2021-11-23 03:36:48,966 INFO  L226             Difference]: Without dead ends: 217
[2021-11-23 03:36:48,974 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 03:36:48,977 INFO  L933         BasicCegarLoop]: 246 mSDtfsCounter, 0 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2021-11-23 03:36:48,978 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 491 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2021-11-23 03:36:48,983 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 217 states.
[2021-11-23 03:36:49,036 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217.
[2021-11-23 03:36:49,037 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 217 states, 126 states have (on average 1.2698412698412698) internal successors, (160), 129 states have internal predecessors, (160), 65 states have call successors, (65), 25 states have call predecessors, (65), 25 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64)
[2021-11-23 03:36:49,040 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 289 transitions.
[2021-11-23 03:36:49,041 INFO  L78                 Accepts]: Start accepts. Automaton has 217 states and 289 transitions. Word has length 93
[2021-11-23 03:36:49,047 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-23 03:36:49,048 INFO  L470      AbstractCegarLoop]: Abstraction has 217 states and 289 transitions.
[2021-11-23 03:36:49,049 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19)
[2021-11-23 03:36:49,049 INFO  L276                IsEmpty]: Start isEmpty. Operand 217 states and 289 transitions.
[2021-11-23 03:36:49,059 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 99
[2021-11-23 03:36:49,059 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-23 03:36:49,060 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]
[2021-11-23 03:36:49,060 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-11-23 03:36:49,060 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-23 03:36:49,061 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-23 03:36:49,061 INFO  L85        PathProgramCache]: Analyzing trace with hash 1051283549, now seen corresponding path program 1 times
[2021-11-23 03:36:49,061 INFO  L121   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2021-11-23 03:36:49,062 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178963933]
[2021-11-23 03:36:49,062 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-23 03:36:49,063 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-23 03:36:49,123 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-23 03:36:49,181 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 03:36:49,182 INFO  L139   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2021-11-23 03:36:49,182 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178963933]
[2021-11-23 03:36:49,182 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178963933] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-23 03:36:49,182 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-23 03:36:49,183 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-11-23 03:36:49,183 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359000127]
[2021-11-23 03:36:49,183 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-23 03:36:49,184 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-23 03:36:49,184 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2021-11-23 03:36:49,185 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-23 03:36:49,185 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-23 03:36:49,185 INFO  L87              Difference]: Start difference. First operand 217 states and 289 transitions. Second operand  has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19)
[2021-11-23 03:36:49,300 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-23 03:36:49,300 INFO  L93              Difference]: Finished difference Result 464 states and 637 transitions.
[2021-11-23 03:36:49,301 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-11-23 03:36:49,301 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 98
[2021-11-23 03:36:49,301 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-23 03:36:49,304 INFO  L225             Difference]: With dead ends: 464
[2021-11-23 03:36:49,304 INFO  L226             Difference]: Without dead ends: 265
[2021-11-23 03:36:49,306 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 03:36:49,307 INFO  L933         BasicCegarLoop]: 259 mSDtfsCounter, 57 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2021-11-23 03:36:49,308 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 497 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2021-11-23 03:36:49,309 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 265 states.
[2021-11-23 03:36:49,329 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 260.
[2021-11-23 03:36:49,330 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 260 states, 158 states have (on average 1.3481012658227849) internal successors, (213), 161 states have internal predecessors, (213), 76 states have call successors, (76), 25 states have call predecessors, (76), 25 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75)
[2021-11-23 03:36:49,333 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 364 transitions.
[2021-11-23 03:36:49,334 INFO  L78                 Accepts]: Start accepts. Automaton has 260 states and 364 transitions. Word has length 98
[2021-11-23 03:36:49,334 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-23 03:36:49,335 INFO  L470      AbstractCegarLoop]: Abstraction has 260 states and 364 transitions.
[2021-11-23 03:36:49,335 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19)
[2021-11-23 03:36:49,335 INFO  L276                IsEmpty]: Start isEmpty. Operand 260 states and 364 transitions.
[2021-11-23 03:36:49,337 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 100
[2021-11-23 03:36:49,338 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-23 03:36:49,338 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]
[2021-11-23 03:36:49,338 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-11-23 03:36:49,339 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-23 03:36:49,339 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-23 03:36:49,339 INFO  L85        PathProgramCache]: Analyzing trace with hash -519996870, now seen corresponding path program 1 times
[2021-11-23 03:36:49,339 INFO  L121   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2021-11-23 03:36:49,340 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498521925]
[2021-11-23 03:36:49,340 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-23 03:36:49,340 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-23 03:36:49,396 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-23 03:36:49,493 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 03:36:49,493 INFO  L139   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2021-11-23 03:36:49,493 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498521925]
[2021-11-23 03:36:49,494 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498521925] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-23 03:36:49,494 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089023258]
[2021-11-23 03:36:49,494 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-23 03:36:49,495 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-23 03:36:49,495 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/z3
[2021-11-23 03:36:49,498 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-23 03:36:49,520 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2021-11-23 03:36:49,841 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-23 03:36:49,847 INFO  L263         TraceCheckSpWp]: Trace formula consists of 1155 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-23 03:36:49,859 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-11-23 03:36:50,081 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 03:36:50,081 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-11-23 03:36:50,312 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 03:36:50,313 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089023258] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-23 03:36:50,322 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1372011804]
[2021-11-23 03:36:50,348 INFO  L159        IcfgInterpreter]: Started Sifa with 82 locations of interest
[2021-11-23 03:36:50,348 INFO  L166        IcfgInterpreter]: Building call graph
[2021-11-23 03:36:50,354 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2021-11-23 03:36:50,360 INFO  L176        IcfgInterpreter]: Starting interpretation
[2021-11-23 03:36:50,362 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2021-11-23 03:37:30,849 INFO  L197        IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs
[2021-11-23 03:37:31,111 INFO  L197        IcfgInterpreter]: Interpreting procedure sendEmail with input of size 267 for LOIs
[2021-11-23 03:37:33,182 INFO  L197        IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs
[2021-11-23 03:37:33,229 INFO  L197        IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs
[2021-11-23 03:37:33,485 INFO  L197        IcfgInterpreter]: Interpreting procedure outgoing with input of size 269 for LOIs
[2021-11-23 03:37:57,729 INFO  L197        IcfgInterpreter]: Interpreting procedure isReadable with input of size 251 for LOIs
[2021-11-23 03:37:58,408 INFO  L197        IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 251 for LOIs
[2021-11-23 03:37:58,458 INFO  L197        IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 452 for LOIs
[2021-11-23 03:37:58,984 INFO  L197        IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 249 for LOIs
[2021-11-23 03:37:59,069 INFO  L197        IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 247 for LOIs
[2021-11-23 03:37:59,118 INFO  L197        IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 473 for LOIs
[2021-11-23 03:38:00,728 INFO  L197        IcfgInterpreter]: Interpreting procedure isVerified with input of size 251 for LOIs
[2021-11-23 03:38:00,778 INFO  L180        IcfgInterpreter]: Interpretation finished
[2021-11-23 03:39:11,825 WARN  L227               SmtUtils]: Spent 7.24s on a formula simplification. DAG size of input: 473 DAG size of output: 279 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 03:39:36,904 WARN  L227               SmtUtils]: Spent 7.05s on a formula simplification. DAG size of input: 452 DAG size of output: 269 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 03:39:46,619 WARN  L227               SmtUtils]: Spent 7.48s on a formula simplification. DAG size of input: 478 DAG size of output: 285 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 03:40:10,260 WARN  L227               SmtUtils]: Spent 5.76s on a formula simplification. DAG size of input: 535 DAG size of output: 375 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 03:40:18,712 WARN  L227               SmtUtils]: Spent 6.30s on a formula simplification. DAG size of input: 577 DAG size of output: 398 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 03:40:28,795 WARN  L227               SmtUtils]: Spent 5.38s on a formula simplification. DAG size of input: 586 DAG size of output: 387 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 03:40:36,405 WARN  L227               SmtUtils]: Spent 6.93s on a formula simplification. DAG size of input: 590 DAG size of output: 417 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 03:41:12,752 WARN  L227               SmtUtils]: Spent 11.71s on a formula simplification. DAG size of input: 645 DAG size of output: 477 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 03:41:25,293 WARN  L227               SmtUtils]: Spent 10.91s on a formula simplification. DAG size of input: 642 DAG size of output: 514 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 03:41:34,360 WARN  L227               SmtUtils]: Spent 8.23s on a formula simplification. DAG size of input: 636 DAG size of output: 445 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 03:41:53,240 WARN  L227               SmtUtils]: Spent 9.07s on a formula simplification. DAG size of input: 702 DAG size of output: 510 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 03:42:03,312 WARN  L227               SmtUtils]: Spent 8.88s on a formula simplification. DAG size of input: 702 DAG size of output: 510 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 03:42:03,316 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSifa [1372011804] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-23 03:42:03,316 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences.
[2021-11-23 03:42:03,317 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [66] imperfect sequences [4, 4, 4] total 72
[2021-11-23 03:42:03,318 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495051366]
[2021-11-23 03:42:03,318 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-23 03:42:03,319 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 67 states
[2021-11-23 03:42:03,319 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2021-11-23 03:42:03,320 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants.
[2021-11-23 03:42:03,323 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=4869, Unknown=0, NotChecked=0, Total=5112
[2021-11-23 03:42:03,324 INFO  L87              Difference]: Start difference. First operand 260 states and 364 transitions. Second operand  has 67 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 41 states have internal predecessors, (50), 20 states have call successors, (21), 13 states have call predecessors, (21), 11 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19)
[2021-11-23 03:43:22,881 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-23 03:43:22,881 INFO  L93              Difference]: Finished difference Result 796 states and 1203 transitions.
[2021-11-23 03:43:22,882 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. 
[2021-11-23 03:43:22,883 INFO  L78                 Accepts]: Start accepts. Automaton has  has 67 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 41 states have internal predecessors, (50), 20 states have call successors, (21), 13 states have call predecessors, (21), 11 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) Word has length 99
[2021-11-23 03:43:22,883 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-23 03:43:22,889 INFO  L225             Difference]: With dead ends: 796
[2021-11-23 03:43:22,889 INFO  L226             Difference]: Without dead ends: 554
[2021-11-23 03:43:22,893 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 227 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1700 ImplicationChecksByTransitivity, 283.5s TimeCoverageRelationStatistics Valid=348, Invalid=6962, Unknown=0, NotChecked=0, Total=7310
[2021-11-23 03:43:22,895 INFO  L933         BasicCegarLoop]: 355 mSDtfsCounter, 492 mSDsluCounter, 9775 mSDsCounter, 0 mSdLazyCounter, 12074 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 9762 SdHoareTripleChecker+Invalid, 12171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 12074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.6s IncrementalHoareTripleChecker+Time
[2021-11-23 03:43:22,896 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [521 Valid, 9762 Invalid, 12171 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [97 Valid, 12074 Invalid, 0 Unknown, 0 Unchecked, 37.6s Time]
[2021-11-23 03:43:22,899 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 554 states.
[2021-11-23 03:43:23,036 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 409.
[2021-11-23 03:43:23,038 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 409 states, 274 states have (on average 1.397810218978102) internal successors, (383), 278 states have internal predecessors, (383), 99 states have call successors, (99), 36 states have call predecessors, (99), 35 states have return successors, (99), 96 states have call predecessors, (99), 98 states have call successors, (99)
[2021-11-23 03:43:23,042 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 581 transitions.
[2021-11-23 03:43:23,043 INFO  L78                 Accepts]: Start accepts. Automaton has 409 states and 581 transitions. Word has length 99
[2021-11-23 03:43:23,043 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-23 03:43:23,044 INFO  L470      AbstractCegarLoop]: Abstraction has 409 states and 581 transitions.
[2021-11-23 03:43:23,044 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 67 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 41 states have internal predecessors, (50), 20 states have call successors, (21), 13 states have call predecessors, (21), 11 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19)
[2021-11-23 03:43:23,044 INFO  L276                IsEmpty]: Start isEmpty. Operand 409 states and 581 transitions.
[2021-11-23 03:43:23,047 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 105
[2021-11-23 03:43:23,048 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-23 03:43:23,048 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]
[2021-11-23 03:43:23,094 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2021-11-23 03:43:23,261 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-23 03:43:23,262 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-23 03:43:23,262 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-23 03:43:23,262 INFO  L85        PathProgramCache]: Analyzing trace with hash -1724686373, now seen corresponding path program 1 times
[2021-11-23 03:43:23,262 INFO  L121   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2021-11-23 03:43:23,262 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426705044]
[2021-11-23 03:43:23,263 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-23 03:43:23,263 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-23 03:43:23,303 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-23 03:43:23,377 INFO  L134       CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2021-11-23 03:43:23,378 INFO  L139   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2021-11-23 03:43:23,378 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426705044]
[2021-11-23 03:43:23,378 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426705044] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-23 03:43:23,378 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-23 03:43:23,379 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-11-23 03:43:23,379 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259937303]
[2021-11-23 03:43:23,379 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-23 03:43:23,381 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-23 03:43:23,381 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2021-11-23 03:43:23,382 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-23 03:43:23,382 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-23 03:43:23,382 INFO  L87              Difference]: Start difference. First operand 409 states and 581 transitions. Second operand  has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20)
[2021-11-23 03:43:23,718 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-23 03:43:23,718 INFO  L93              Difference]: Finished difference Result 891 states and 1296 transitions.
[2021-11-23 03:43:23,719 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-11-23 03:43:23,719 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 104
[2021-11-23 03:43:23,722 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-23 03:43:23,728 INFO  L225             Difference]: With dead ends: 891
[2021-11-23 03:43:23,728 INFO  L226             Difference]: Without dead ends: 524
[2021-11-23 03:43:23,730 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 03:43:23,732 INFO  L933         BasicCegarLoop]: 268 mSDtfsCounter, 55 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2021-11-23 03:43:23,732 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 513 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2021-11-23 03:43:23,734 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 524 states.
[2021-11-23 03:43:23,950 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 517.
[2021-11-23 03:43:23,952 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 517 states, 357 states have (on average 1.4369747899159664) internal successors, (513), 361 states have internal predecessors, (513), 124 states have call successors, (124), 36 states have call predecessors, (124), 35 states have return successors, (124), 121 states have call predecessors, (124), 123 states have call successors, (124)
[2021-11-23 03:43:23,959 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 761 transitions.
[2021-11-23 03:43:23,960 INFO  L78                 Accepts]: Start accepts. Automaton has 517 states and 761 transitions. Word has length 104
[2021-11-23 03:43:23,961 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-23 03:43:23,961 INFO  L470      AbstractCegarLoop]: Abstraction has 517 states and 761 transitions.
[2021-11-23 03:43:23,961 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20)
[2021-11-23 03:43:23,961 INFO  L276                IsEmpty]: Start isEmpty. Operand 517 states and 761 transitions.
[2021-11-23 03:43:23,966 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 105
[2021-11-23 03:43:23,967 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-23 03:43:23,967 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]
[2021-11-23 03:43:23,967 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-11-23 03:43:23,968 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-23 03:43:23,968 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-23 03:43:23,968 INFO  L85        PathProgramCache]: Analyzing trace with hash -975616786, now seen corresponding path program 1 times
[2021-11-23 03:43:23,969 INFO  L121   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2021-11-23 03:43:23,969 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557066363]
[2021-11-23 03:43:23,969 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-23 03:43:23,969 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-23 03:43:24,002 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-23 03:43:24,078 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 03:43:24,078 INFO  L139   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2021-11-23 03:43:24,078 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557066363]
[2021-11-23 03:43:24,079 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557066363] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-23 03:43:24,079 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641144021]
[2021-11-23 03:43:24,079 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-23 03:43:24,079 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-23 03:43:24,080 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/z3
[2021-11-23 03:43:24,082 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-23 03:43:24,099 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee32a62-43be-4b22-83ff-a36b8c230c42/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2021-11-23 03:43:24,405 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-23 03:43:24,410 INFO  L263         TraceCheckSpWp]: Trace formula consists of 1169 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-23 03:43:24,417 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-11-23 03:43:24,654 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 03:43:24,654 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-11-23 03:43:24,908 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 03:43:24,908 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [641144021] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-23 03:43:24,908 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1220788472]
[2021-11-23 03:43:24,913 INFO  L159        IcfgInterpreter]: Started Sifa with 87 locations of interest
[2021-11-23 03:43:24,914 INFO  L166        IcfgInterpreter]: Building call graph
[2021-11-23 03:43:24,915 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2021-11-23 03:43:24,915 INFO  L176        IcfgInterpreter]: Starting interpretation
[2021-11-23 03:43:24,915 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2021-11-23 03:43:52,906 INFO  L197        IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs
[2021-11-23 03:43:53,164 INFO  L197        IcfgInterpreter]: Interpreting procedure sendEmail with input of size 267 for LOIs
[2021-11-23 03:43:54,989 INFO  L197        IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs
[2021-11-23 03:43:55,038 INFO  L197        IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs
[2021-11-23 03:43:55,302 INFO  L197        IcfgInterpreter]: Interpreting procedure outgoing with input of size 267 for LOIs
[2021-11-23 03:44:38,201 INFO  L197        IcfgInterpreter]: Interpreting procedure isReadable with input of size 251 for LOIs
[2021-11-23 03:44:38,878 INFO  L197        IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 251 for LOIs
[2021-11-23 03:44:38,928 INFO  L197        IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 452 for LOIs
[2021-11-23 03:44:39,471 INFO  L197        IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 249 for LOIs
[2021-11-23 03:44:39,550 INFO  L197        IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 247 for LOIs
[2021-11-23 03:44:39,598 INFO  L197        IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 473 for LOIs
[2021-11-23 03:44:41,229 INFO  L197        IcfgInterpreter]: Interpreting procedure isVerified with input of size 429 for LOIs
[2021-11-23 03:44:41,462 INFO  L197        IcfgInterpreter]: Interpreting procedure isSigned with input of size 251 for LOIs
[2021-11-23 03:44:41,514 INFO  L180        IcfgInterpreter]: Interpretation finished
[2021-11-23 03:45:51,906 WARN  L227               SmtUtils]: Spent 7.33s on a formula simplification. DAG size of input: 473 DAG size of output: 279 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 03:46:17,217 WARN  L227               SmtUtils]: Spent 7.25s on a formula simplification. DAG size of input: 452 DAG size of output: 269 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 03:46:27,701 WARN  L227               SmtUtils]: Spent 7.96s on a formula simplification. DAG size of input: 478 DAG size of output: 285 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 03:46:50,734 WARN  L227               SmtUtils]: Spent 5.57s on a formula simplification. DAG size of input: 535 DAG size of output: 375 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 03:46:59,074 WARN  L227               SmtUtils]: Spent 6.13s on a formula simplification. DAG size of input: 577 DAG size of output: 398 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 03:47:08,808 WARN  L227               SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 586 DAG size of output: 387 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 03:47:16,341 WARN  L227               SmtUtils]: Spent 6.86s on a formula simplification. DAG size of input: 590 DAG size of output: 417 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 03:47:49,686 WARN  L227               SmtUtils]: Spent 10.55s on a formula simplification. DAG size of input: 645 DAG size of output: 477 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 03:48:01,468 WARN  L227               SmtUtils]: Spent 10.28s on a formula simplification. DAG size of input: 642 DAG size of output: 514 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2021-11-23 03:48:09,678 WARN  L227               SmtUtils]: Spent 7.41s on a formula simplification. DAG size of input: 640 DAG size of output: 445 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)