./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product21.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product21.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0 --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 cecb11257778d17777e5c48cccb3bea71da01aa9ce120079a5b602041abb00f4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 20:16:45,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 20:16:45,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 20:16:45,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 20:16:45,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 20:16:45,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 20:16:45,758 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 20:16:45,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 20:16:45,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 20:16:45,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 20:16:45,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 20:16:45,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 20:16:45,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 20:16:45,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 20:16:45,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 20:16:45,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 20:16:45,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 20:16:45,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 20:16:45,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 20:16:45,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 20:16:45,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 20:16:45,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 20:16:45,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 20:16:45,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 20:16:45,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 20:16:45,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 20:16:45,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 20:16:45,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 20:16:45,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 20:16:45,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 20:16:45,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 20:16:45,790 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 20:16:45,791 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 20:16:45,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 20:16:45,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 20:16:45,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 20:16:45,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 20:16:45,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 20:16:45,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 20:16:45,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 20:16:45,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 20:16:45,801 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 20:16:45,828 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 20:16:45,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 20:16:45,829 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 20:16:45,829 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 20:16:45,830 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 20:16:45,830 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 20:16:45,830 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 20:16:45,830 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 20:16:45,831 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 20:16:45,831 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 20:16:45,831 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 20:16:45,831 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 20:16:45,831 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 20:16:45,832 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 20:16:45,832 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 20:16:45,832 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 20:16:45,832 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 20:16:45,833 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 20:16:45,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 20:16:45,834 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 20:16:45,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 20:16:45,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 20:16:45,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 20:16:45,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 20:16:45,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 20:16:45,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 20:16:45,835 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 20:16:45,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 20:16:45,836 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 20:16:45,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 20:16:45,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 20:16:45,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 20:16:45,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:16:45,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 20:16:45,837 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 20:16:45,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 20:16:45,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 20:16:45,837 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 20:16:45,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 20:16:45,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 20:16:45,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 20:16:45,838 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cecb11257778d17777e5c48cccb3bea71da01aa9ce120079a5b602041abb00f4 [2022-11-16 20:16:46,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 20:16:46,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 20:16:46,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 20:16:46,163 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 20:16:46,164 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 20:16:46,166 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/product-lines/email_spec1_product21.cil.c [2022-11-16 20:16:46,237 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/data/6a3a1ede7/7d4ada49aa8f47f59f324621d79e04f1/FLAGa57aff5ad [2022-11-16 20:16:46,966 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 20:16:46,966 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/sv-benchmarks/c/product-lines/email_spec1_product21.cil.c [2022-11-16 20:16:46,997 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/data/6a3a1ede7/7d4ada49aa8f47f59f324621d79e04f1/FLAGa57aff5ad [2022-11-16 20:16:47,173 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/data/6a3a1ede7/7d4ada49aa8f47f59f324621d79e04f1 [2022-11-16 20:16:47,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 20:16:47,180 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 20:16:47,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 20:16:47,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 20:16:47,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 20:16:47,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:16:47" (1/1) ... [2022-11-16 20:16:47,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38f5c90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:16:47, skipping insertion in model container [2022-11-16 20:16:47,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:16:47" (1/1) ... [2022-11-16 20:16:47,202 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 20:16:47,269 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 20:16:47,870 WARN L229 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_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/sv-benchmarks/c/product-lines/email_spec1_product21.cil.c[63391,63404] [2022-11-16 20:16:47,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:16:47,902 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 20:16:48,041 WARN L229 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_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/sv-benchmarks/c/product-lines/email_spec1_product21.cil.c[63391,63404] [2022-11-16 20:16:48,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:16:48,076 INFO L208 MainTranslator]: Completed translation [2022-11-16 20:16:48,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:16:48 WrapperNode [2022-11-16 20:16:48,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 20:16:48,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 20:16:48,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 20:16:48,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 20:16:48,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:16:48" (1/1) ... [2022-11-16 20:16:48,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:16:48" (1/1) ... [2022-11-16 20:16:48,169 INFO L138 Inliner]: procedures = 128, calls = 215, calls flagged for inlining = 57, calls inlined = 54, statements flattened = 1058 [2022-11-16 20:16:48,170 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 20:16:48,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 20:16:48,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 20:16:48,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 20:16:48,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:16:48" (1/1) ... [2022-11-16 20:16:48,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:16:48" (1/1) ... [2022-11-16 20:16:48,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:16:48" (1/1) ... [2022-11-16 20:16:48,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:16:48" (1/1) ... [2022-11-16 20:16:48,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:16:48" (1/1) ... [2022-11-16 20:16:48,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:16:48" (1/1) ... [2022-11-16 20:16:48,269 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:16:48" (1/1) ... [2022-11-16 20:16:48,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:16:48" (1/1) ... [2022-11-16 20:16:48,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 20:16:48,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 20:16:48,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 20:16:48,294 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 20:16:48,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:16:48" (1/1) ... [2022-11-16 20:16:48,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:16:48,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:16:48,357 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 20:16:48,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 20:16:48,418 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-16 20:16:48,419 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-16 20:16:48,419 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-16 20:16:48,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-16 20:16:48,419 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-16 20:16:48,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-16 20:16:48,420 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-16 20:16:48,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-16 20:16:48,420 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-16 20:16:48,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-16 20:16:48,420 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-16 20:16:48,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-16 20:16:48,421 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-16 20:16:48,421 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-16 20:16:48,421 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-16 20:16:48,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-16 20:16:48,421 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-16 20:16:48,421 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-16 20:16:48,421 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-16 20:16:48,422 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-16 20:16:48,422 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-16 20:16:48,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 20:16:48,423 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-16 20:16:48,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-16 20:16:48,423 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-16 20:16:48,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-16 20:16:48,423 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-16 20:16:48,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-16 20:16:48,424 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-16 20:16:48,424 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-16 20:16:48,425 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-11-16 20:16:48,426 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-11-16 20:16:48,426 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-16 20:16:48,426 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-16 20:16:48,426 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-16 20:16:48,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-16 20:16:48,427 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-16 20:16:48,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-16 20:16:48,427 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-16 20:16:48,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-16 20:16:48,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 20:16:48,428 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-16 20:16:48,428 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-16 20:16:48,428 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-16 20:16:48,429 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-16 20:16:48,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 20:16:48,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 20:16:48,750 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 20:16:48,753 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 20:16:49,671 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 20:16:50,447 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 20:16:50,447 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 20:16:50,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:16:50 BoogieIcfgContainer [2022-11-16 20:16:50,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 20:16:50,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 20:16:50,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 20:16:50,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 20:16:50,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:16:47" (1/3) ... [2022-11-16 20:16:50,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb97ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:16:50, skipping insertion in model container [2022-11-16 20:16:50,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:16:48" (2/3) ... [2022-11-16 20:16:50,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb97ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:16:50, skipping insertion in model container [2022-11-16 20:16:50,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:16:50" (3/3) ... [2022-11-16 20:16:50,463 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product21.cil.c [2022-11-16 20:16:50,485 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 20:16:50,485 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 20:16:50,561 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 20:16:50,569 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@66187551, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 20:16:50,569 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 20:16:50,577 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 105 states have (on average 1.3333333333333333) internal successors, (140), 110 states have internal predecessors, (140), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-11-16 20:16:50,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-16 20:16:50,597 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:16:50,597 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-16 20:16:50,598 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:16:50,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:16:50,603 INFO L85 PathProgramCache]: Analyzing trace with hash -537506984, now seen corresponding path program 1 times [2022-11-16 20:16:50,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:16:50,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410422342] [2022-11-16 20:16:50,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:16:50,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:16:50,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:16:51,082 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 20:16:51,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:16:51,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410422342] [2022-11-16 20:16:51,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410422342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:16:51,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:16:51,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 20:16:51,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943405859] [2022-11-16 20:16:51,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:16:51,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 20:16:51,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:16:51,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 20:16:51,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 20:16:51,137 INFO L87 Difference]: Start difference. First operand has 185 states, 105 states have (on average 1.3333333333333333) internal successors, (140), 110 states have internal predecessors, (140), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 20:16:51,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:16:51,337 INFO L93 Difference]: Finished difference Result 278 states and 379 transitions. [2022-11-16 20:16:51,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 20:16:51,340 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2022-11-16 20:16:51,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:16:51,358 INFO L225 Difference]: With dead ends: 278 [2022-11-16 20:16:51,358 INFO L226 Difference]: Without dead ends: 182 [2022-11-16 20:16:51,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 20:16:51,374 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:16:51,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 215 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:16:51,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-11-16 20:16:51,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2022-11-16 20:16:51,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 107 states have internal predecessors, (134), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2022-11-16 20:16:51,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 247 transitions. [2022-11-16 20:16:51,461 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 247 transitions. Word has length 63 [2022-11-16 20:16:51,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:16:51,468 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 247 transitions. [2022-11-16 20:16:51,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 20:16:51,469 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 247 transitions. [2022-11-16 20:16:51,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-16 20:16:51,473 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:16:51,474 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-16 20:16:51,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 20:16:51,474 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:16:51,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:16:51,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1255439372, now seen corresponding path program 1 times [2022-11-16 20:16:51,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:16:51,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968882441] [2022-11-16 20:16:51,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:16:51,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:16:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:16:51,837 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 20:16:51,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:16:51,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968882441] [2022-11-16 20:16:51,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968882441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:16:51,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:16:51,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:16:51,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313309770] [2022-11-16 20:16:51,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:16:51,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:16:51,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:16:51,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:16:51,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:16:51,843 INFO L87 Difference]: Start difference. First operand 182 states and 247 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 20:16:52,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:16:52,033 INFO L93 Difference]: Finished difference Result 274 states and 364 transitions. [2022-11-16 20:16:52,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:16:52,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 64 [2022-11-16 20:16:52,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:16:52,036 INFO L225 Difference]: With dead ends: 274 [2022-11-16 20:16:52,037 INFO L226 Difference]: Without dead ends: 184 [2022-11-16 20:16:52,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:16:52,039 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:16:52,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 423 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:16:52,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-11-16 20:16:52,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2022-11-16 20:16:52,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 105 states have (on average 1.2952380952380953) internal successors, (136), 109 states have internal predecessors, (136), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2022-11-16 20:16:52,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 249 transitions. [2022-11-16 20:16:52,062 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 249 transitions. Word has length 64 [2022-11-16 20:16:52,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:16:52,063 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 249 transitions. [2022-11-16 20:16:52,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 20:16:52,063 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 249 transitions. [2022-11-16 20:16:52,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-16 20:16:52,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:16:52,066 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:16:52,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 20:16:52,067 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:16:52,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:16:52,068 INFO L85 PathProgramCache]: Analyzing trace with hash 440481792, now seen corresponding path program 1 times [2022-11-16 20:16:52,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:16:52,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3553667] [2022-11-16 20:16:52,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:16:52,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:16:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:16:52,208 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 20:16:52,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:16:52,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3553667] [2022-11-16 20:16:52,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3553667] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:16:52,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:16:52,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:16:52,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603178891] [2022-11-16 20:16:52,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:16:52,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:16:52,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:16:52,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:16:52,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:16:52,213 INFO L87 Difference]: Start difference. First operand 184 states and 249 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 20:16:52,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:16:52,387 INFO L93 Difference]: Finished difference Result 403 states and 565 transitions. [2022-11-16 20:16:52,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:16:52,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 69 [2022-11-16 20:16:52,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:16:52,393 INFO L225 Difference]: With dead ends: 403 [2022-11-16 20:16:52,393 INFO L226 Difference]: Without dead ends: 237 [2022-11-16 20:16:52,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:16:52,404 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 59 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:16:52,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 435 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:16:52,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-11-16 20:16:52,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 232. [2022-11-16 20:16:52,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 139 states have (on average 1.3741007194244603) internal successors, (191), 143 states have internal predecessors, (191), 71 states have call successors, (71), 21 states have call predecessors, (71), 21 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2022-11-16 20:16:52,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 332 transitions. [2022-11-16 20:16:52,456 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 332 transitions. Word has length 69 [2022-11-16 20:16:52,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:16:52,457 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 332 transitions. [2022-11-16 20:16:52,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 20:16:52,457 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 332 transitions. [2022-11-16 20:16:52,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-16 20:16:52,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:16:52,461 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:16:52,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 20:16:52,461 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:16:52,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:16:52,462 INFO L85 PathProgramCache]: Analyzing trace with hash 126329818, now seen corresponding path program 1 times [2022-11-16 20:16:52,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:16:52,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789796662] [2022-11-16 20:16:52,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:16:52,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:16:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:16:52,746 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 20:16:52,746 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:16:52,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789796662] [2022-11-16 20:16:52,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789796662] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:16:52,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465519518] [2022-11-16 20:16:52,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:16:52,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:16:52,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:16:52,757 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:16:52,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 20:16:53,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:16:53,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 988 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 20:16:53,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:16:53,324 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 20:16:53,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:16:53,460 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 20:16:53,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465519518] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:16:53,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1483970892] [2022-11-16 20:16:53,498 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2022-11-16 20:16:53,498 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:16:53,507 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:16:53,514 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:16:53,516 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:17:31,763 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-16 20:17:32,371 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-16 20:17:32,825 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:18:14,268 WARN L233 SmtUtils]: Spent 7.00s on a formula simplification. DAG size of input: 480 DAG size of output: 324 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:18:21,031 WARN L233 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 490 DAG size of output: 267 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:18:26,500 WARN L233 SmtUtils]: Spent 5.20s on a formula simplification. DAG size of input: 502 DAG size of output: 288 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:18:34,428 WARN L233 SmtUtils]: Spent 6.31s on a formula simplification. DAG size of input: 512 DAG size of output: 297 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:18:50,282 WARN L233 SmtUtils]: Spent 15.47s on a formula simplification. DAG size of input: 577 DAG size of output: 334 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:19:03,676 WARN L233 SmtUtils]: Spent 6.21s on a formula simplification. DAG size of input: 549 DAG size of output: 362 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:19:03,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1483970892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:19:03,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:19:03,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-11-16 20:19:03,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459096883] [2022-11-16 20:19:03,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:19:03,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-16 20:19:03,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:19:03,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-16 20:19:03,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2022-11-16 20:19:03,883 INFO L87 Difference]: Start difference. First operand 232 states and 332 transitions. Second operand has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-11-16 20:19:17,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:19:17,472 INFO L93 Difference]: Finished difference Result 512 states and 765 transitions. [2022-11-16 20:19:17,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-16 20:19:17,473 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 70 [2022-11-16 20:19:17,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:19:17,475 INFO L225 Difference]: With dead ends: 512 [2022-11-16 20:19:17,476 INFO L226 Difference]: Without dead ends: 298 [2022-11-16 20:19:17,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 186 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 96.7s TimeCoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2022-11-16 20:19:17,478 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 128 mSDsluCounter, 2816 mSDsCounter, 0 mSdLazyCounter, 1902 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 3054 SdHoareTripleChecker+Invalid, 1915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-16 20:19:17,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 3054 Invalid, 1915 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 1902 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2022-11-16 20:19:17,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-11-16 20:19:17,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 255. [2022-11-16 20:19:17,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 161 states have (on average 1.391304347826087) internal successors, (224), 165 states have internal predecessors, (224), 71 states have call successors, (71), 22 states have call predecessors, (71), 22 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2022-11-16 20:19:17,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 365 transitions. [2022-11-16 20:19:17,595 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 365 transitions. Word has length 70 [2022-11-16 20:19:17,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:19:17,595 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 365 transitions. [2022-11-16 20:19:17,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-11-16 20:19:17,596 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 365 transitions. [2022-11-16 20:19:17,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-16 20:19:17,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:19:17,598 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:19:17,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 20:19:17,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:19:17,806 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:19:17,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:19:17,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1187116606, now seen corresponding path program 1 times [2022-11-16 20:19:17,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:19:17,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986930263] [2022-11-16 20:19:17,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:19:17,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:19:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:19:17,890 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-16 20:19:17,890 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:19:17,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986930263] [2022-11-16 20:19:17,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986930263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:19:17,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:19:17,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:19:17,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043944521] [2022-11-16 20:19:17,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:19:17,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:19:17,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:19:17,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:19:17,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:19:17,893 INFO L87 Difference]: Start difference. First operand 255 states and 365 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 20:19:18,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:19:18,187 INFO L93 Difference]: Finished difference Result 613 states and 910 transitions. [2022-11-16 20:19:18,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:19:18,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 75 [2022-11-16 20:19:18,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:19:18,190 INFO L225 Difference]: With dead ends: 613 [2022-11-16 20:19:18,191 INFO L226 Difference]: Without dead ends: 382 [2022-11-16 20:19:18,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:19:18,193 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 57 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:19:18,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 443 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:19:18,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-11-16 20:19:18,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 377. [2022-11-16 20:19:18,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 252 states have (on average 1.4444444444444444) internal successors, (364), 256 states have internal predecessors, (364), 102 states have call successors, (102), 22 states have call predecessors, (102), 22 states have return successors, (101), 100 states have call predecessors, (101), 101 states have call successors, (101) [2022-11-16 20:19:18,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 567 transitions. [2022-11-16 20:19:18,439 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 567 transitions. Word has length 75 [2022-11-16 20:19:18,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:19:18,440 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 567 transitions. [2022-11-16 20:19:18,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 20:19:18,440 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 567 transitions. [2022-11-16 20:19:18,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-16 20:19:18,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:19:18,443 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:19:18,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 20:19:18,443 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:19:18,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:19:18,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1472492641, now seen corresponding path program 1 times [2022-11-16 20:19:18,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:19:18,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201609270] [2022-11-16 20:19:18,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:19:18,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:19:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:19:18,572 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-16 20:19:18,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:19:18,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201609270] [2022-11-16 20:19:18,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201609270] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:19:18,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805035837] [2022-11-16 20:19:18,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:19:18,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:19:18,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:19:18,574 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:19:18,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 20:19:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:19:18,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 20:19:18,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:19:18,903 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-16 20:19:18,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:19:18,976 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-16 20:19:18,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805035837] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:19:18,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2024303838] [2022-11-16 20:19:18,983 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-11-16 20:19:18,983 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:19:18,985 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:19:18,986 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:19:18,986 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:20:06,308 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-16 20:20:06,619 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 454 for LOIs [2022-11-16 20:20:06,944 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:20:32,892 WARN L233 SmtUtils]: Spent 5.06s on a formula simplification. DAG size of input: 477 DAG size of output: 269 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:20:42,132 WARN L233 SmtUtils]: Spent 5.58s on a formula simplification. DAG size of input: 480 DAG size of output: 324 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:20:58,181 WARN L233 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 512 DAG size of output: 297 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:21:10,751 WARN L233 SmtUtils]: Spent 12.28s on a formula simplification. DAG size of input: 583 DAG size of output: 346 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:21:24,412 WARN L233 SmtUtils]: Spent 8.36s on a formula simplification. DAG size of input: 582 DAG size of output: 321 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:21:33,094 WARN L233 SmtUtils]: Spent 8.24s on a formula simplification. DAG size of input: 578 DAG size of output: 317 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:21:44,567 WARN L233 SmtUtils]: Spent 11.02s on a formula simplification. DAG size of input: 581 DAG size of output: 445 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:21:56,195 WARN L233 SmtUtils]: Spent 11.16s on a formula simplification. DAG size of input: 583 DAG size of output: 447 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:22:03,078 WARN L233 SmtUtils]: Spent 6.43s on a formula simplification. DAG size of input: 584 DAG size of output: 332 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:22:03,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2024303838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:22:03,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:22:03,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-16 20:22:03,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117756652] [2022-11-16 20:22:03,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:22:03,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 20:22:03,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:22:03,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 20:22:03,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-11-16 20:22:03,272 INFO L87 Difference]: Start difference. First operand 377 states and 567 transitions. Second operand has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-16 20:22:29,233 WARN L233 SmtUtils]: Spent 6.68s on a formula simplification. DAG size of input: 545 DAG size of output: 375 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:22:36,266 WARN L233 SmtUtils]: Spent 6.79s on a formula simplification. DAG size of input: 547 DAG size of output: 377 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:22:50,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:22:50,645 INFO L93 Difference]: Finished difference Result 809 states and 1259 transitions. [2022-11-16 20:22:50,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-16 20:22:50,647 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 76 [2022-11-16 20:22:50,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:22:50,650 INFO L225 Difference]: With dead ends: 809 [2022-11-16 20:22:50,650 INFO L226 Difference]: Without dead ends: 495 [2022-11-16 20:22:50,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 200 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 151.8s TimeCoverageRelationStatistics Valid=208, Invalid=1352, Unknown=0, NotChecked=0, Total=1560 [2022-11-16 20:22:50,653 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 192 mSDsluCounter, 2944 mSDsCounter, 0 mSdLazyCounter, 2455 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 3171 SdHoareTripleChecker+Invalid, 2475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-11-16 20:22:50,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 3171 Invalid, 2475 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 2455 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2022-11-16 20:22:50,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2022-11-16 20:22:50,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 393. [2022-11-16 20:22:50,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 264 states have (on average 1.4431818181818181) internal successors, (381), 270 states have internal predecessors, (381), 105 states have call successors, (105), 23 states have call predecessors, (105), 23 states have return successors, (104), 101 states have call predecessors, (104), 104 states have call successors, (104) [2022-11-16 20:22:50,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 590 transitions. [2022-11-16 20:22:50,926 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 590 transitions. Word has length 76 [2022-11-16 20:22:50,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:22:50,926 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 590 transitions. [2022-11-16 20:22:50,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-16 20:22:50,926 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 590 transitions. [2022-11-16 20:22:50,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-16 20:22:50,929 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:22:50,929 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:22:50,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 20:22:51,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-16 20:22:51,137 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:22:51,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:22:51,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1310814523, now seen corresponding path program 1 times [2022-11-16 20:22:51,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:22:51,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213520497] [2022-11-16 20:22:51,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:22:51,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:22:51,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:22:51,296 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 20:22:51,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:22:51,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213520497] [2022-11-16 20:22:51,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213520497] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:22:51,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595685961] [2022-11-16 20:22:51,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:22:51,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:22:51,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:22:51,298 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:22:51,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 20:22:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:22:51,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 1124 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 20:22:51,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:22:51,654 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 20:22:51,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:22:51,735 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 20:22:51,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595685961] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:22:51,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1606814838] [2022-11-16 20:22:51,742 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-11-16 20:22:51,742 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:22:51,744 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:22:51,744 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:22:51,744 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:24:27,309 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-16 20:24:27,629 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 234 for LOIs [2022-11-16 20:24:27,697 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 235 for LOIs [2022-11-16 20:24:27,761 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 281 for LOIs [2022-11-16 20:24:27,915 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-16 20:24:28,253 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:25:01,178 WARN L233 SmtUtils]: Spent 5.71s on a formula simplification. DAG size of input: 480 DAG size of output: 324 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:25:17,530 WARN L233 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 512 DAG size of output: 297 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:25:29,696 WARN L233 SmtUtils]: Spent 9.51s on a formula simplification. DAG size of input: 582 DAG size of output: 410 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:25:39,783 WARN L233 SmtUtils]: Spent 9.70s on a formula simplification. DAG size of input: 584 DAG size of output: 413 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:26:00,102 WARN L233 SmtUtils]: Spent 8.89s on a formula simplification. DAG size of input: 526 DAG size of output: 375 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:26:00,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1606814838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:26:00,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:26:00,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-11-16 20:26:00,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910547062] [2022-11-16 20:26:00,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:26:00,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-16 20:26:00,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:26:00,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-16 20:26:00,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1018, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 20:26:00,110 INFO L87 Difference]: Start difference. First operand 393 states and 590 transitions. Second operand has 29 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 17 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2022-11-16 20:26:15,652 WARN L233 SmtUtils]: Spent 6.80s on a formula simplification. DAG size of input: 525 DAG size of output: 368 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:26:23,327 WARN L233 SmtUtils]: Spent 7.35s on a formula simplification. DAG size of input: 527 DAG size of output: 370 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:26:31,209 WARN L233 SmtUtils]: Spent 7.13s on a formula simplification. DAG size of input: 525 DAG size of output: 342 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:26:39,444 WARN L233 SmtUtils]: Spent 7.17s on a formula simplification. DAG size of input: 522 DAG size of output: 337 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:26:46,235 WARN L233 SmtUtils]: Spent 5.53s on a formula simplification. DAG size of input: 450 DAG size of output: 379 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:27:03,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:27:03,076 INFO L93 Difference]: Finished difference Result 844 states and 1310 transitions. [2022-11-16 20:27:03,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-16 20:27:03,077 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 17 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) Word has length 79 [2022-11-16 20:27:03,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:27:03,080 INFO L225 Difference]: With dead ends: 844 [2022-11-16 20:27:03,080 INFO L226 Difference]: Without dead ends: 530 [2022-11-16 20:27:03,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 206 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 136.3s TimeCoverageRelationStatistics Valid=172, Invalid=1550, Unknown=0, NotChecked=0, Total=1722 [2022-11-16 20:27:03,083 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 171 mSDsluCounter, 3173 mSDsCounter, 0 mSdLazyCounter, 3476 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 3402 SdHoareTripleChecker+Invalid, 3496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 3476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2022-11-16 20:27:03,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 3402 Invalid, 3496 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 3476 Invalid, 0 Unknown, 0 Unchecked, 17.6s Time] [2022-11-16 20:27:03,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2022-11-16 20:27:03,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 432. [2022-11-16 20:27:03,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 296 states have (on average 1.4391891891891893) internal successors, (426), 303 states have internal predecessors, (426), 109 states have call successors, (109), 26 states have call predecessors, (109), 26 states have return successors, (108), 104 states have call predecessors, (108), 108 states have call successors, (108) [2022-11-16 20:27:03,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 643 transitions. [2022-11-16 20:27:03,434 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 643 transitions. Word has length 79 [2022-11-16 20:27:03,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:27:03,435 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 643 transitions. [2022-11-16 20:27:03,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 17 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2022-11-16 20:27:03,435 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 643 transitions. [2022-11-16 20:27:03,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-16 20:27:03,438 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:27:03,438 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:27:03,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 20:27:03,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-16 20:27:03,639 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:27:03,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:27:03,640 INFO L85 PathProgramCache]: Analyzing trace with hash -17817753, now seen corresponding path program 1 times [2022-11-16 20:27:03,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:27:03,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125197506] [2022-11-16 20:27:03,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:27:03,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:27:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:27:03,793 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 20:27:03,794 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:27:03,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125197506] [2022-11-16 20:27:03,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125197506] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:27:03,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179501130] [2022-11-16 20:27:03,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:27:03,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:27:03,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:27:03,796 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:27:03,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20ca9a5-dab3-496a-b62e-fc3699ec9b15/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 20:27:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:27:04,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 20:27:04,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:27:04,227 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 20:27:04,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:27:04,299 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 20:27:04,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179501130] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:27:04,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [715065369] [2022-11-16 20:27:04,303 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-11-16 20:27:04,303 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:27:04,304 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:27:04,304 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:27:04,304 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:28:05,619 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-11-16 20:28:06,010 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-16 20:28:06,375 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 261 for LOIs [2022-11-16 20:28:08,489 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 241 for LOIs [2022-11-16 20:28:08,547 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 263 for LOIs [2022-11-16 20:28:09,564 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 270 for LOIs [2022-11-16 20:28:14,700 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 241 for LOIs [2022-11-16 20:28:14,752 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 473 for LOIs [2022-11-16 20:28:19,109 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 233 for LOIs [2022-11-16 20:28:19,157 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:28:38,534 WARN L233 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 470 DAG size of output: 288 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:28:59,196 WARN L233 SmtUtils]: Spent 6.62s on a formula simplification. DAG size of input: 480 DAG size of output: 324 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:29:05,492 WARN L233 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 490 DAG size of output: 267 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:29:18,457 WARN L233 SmtUtils]: Spent 6.28s on a formula simplification. DAG size of input: 512 DAG size of output: 297 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:29:31,808 WARN L233 SmtUtils]: Spent 9.76s on a formula simplification. DAG size of input: 579 DAG size of output: 327 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:29:42,118 WARN L233 SmtUtils]: Spent 9.85s on a formula simplification. DAG size of input: 575 DAG size of output: 323 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:29:48,514 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification. DAG size of input: 570 DAG size of output: 329 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:29:54,903 WARN L233 SmtUtils]: Spent 5.99s on a formula simplification. DAG size of input: 566 DAG size of output: 325 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:30:03,466 WARN L233 SmtUtils]: Spent 8.12s on a formula simplification. DAG size of input: 570 DAG size of output: 370 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:30:11,725 WARN L233 SmtUtils]: Spent 7.84s on a formula simplification. DAG size of input: 566 DAG size of output: 366 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:30:17,958 WARN L233 SmtUtils]: Spent 5.80s on a formula simplification. DAG size of input: 570 DAG size of output: 335 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:30:24,519 WARN L233 SmtUtils]: Spent 6.09s on a formula simplification. DAG size of input: 566 DAG size of output: 331 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)