./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product21.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product21.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 13f72d33ad8dc1f394ba6b36d4d28c51e0dd0afffaf225b08b0adb7c8b4dde17 --- 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-2329fc7 [2022-12-13 18:35:24,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:35:24,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:35:24,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:35:24,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:35:24,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:35:24,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:35:24,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:35:24,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:35:24,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:35:24,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:35:24,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:35:24,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:35:24,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:35:24,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:35:24,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:35:24,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:35:24,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:35:24,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:35:24,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:35:24,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:35:24,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:35:24,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:35:24,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:35:24,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:35:24,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:35:24,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:35:24,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:35:24,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:35:24,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:35:24,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:35:24,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:35:24,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:35:24,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:35:24,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:35:24,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:35:24,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:35:24,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:35:24,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:35:24,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:35:24,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:35:24,277 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 18:35:24,297 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:35:24,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:35:24,298 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:35:24,298 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:35:24,299 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:35:24,299 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:35:24,300 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:35:24,300 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:35:24,300 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:35:24,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:35:24,300 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 18:35:24,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:35:24,301 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 18:35:24,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:35:24,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:35:24,301 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:35:24,301 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:35:24,302 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 18:35:24,302 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:35:24,302 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:35:24,302 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:35:24,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:35:24,303 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:35:24,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:35:24,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:35:24,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:35:24,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:35:24,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:35:24,304 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:35:24,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:35:24,304 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:35:24,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:35:24,304 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:35:24,305 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:35:24,305 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:35:24,305 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13f72d33ad8dc1f394ba6b36d4d28c51e0dd0afffaf225b08b0adb7c8b4dde17 [2022-12-13 18:35:24,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:35:24,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:35:24,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:35:24,489 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:35:24,490 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:35:24,490 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/email_spec0_product21.cil.c [2022-12-13 18:35:27,053 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:35:27,277 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:35:27,277 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/sv-benchmarks/c/product-lines/email_spec0_product21.cil.c [2022-12-13 18:35:27,289 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/data/4c36751ed/95783ba06b254113aa5ad8531496d693/FLAG8750ec753 [2022-12-13 18:35:27,630 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/data/4c36751ed/95783ba06b254113aa5ad8531496d693 [2022-12-13 18:35:27,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:35:27,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:35:27,637 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:35:27,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:35:27,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:35:27,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:35:27" (1/1) ... [2022-12-13 18:35:27,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8637210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:35:27, skipping insertion in model container [2022-12-13 18:35:27,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:35:27" (1/1) ... [2022-12-13 18:35:27,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:35:27,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:35:27,958 WARN L237 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_48c1531a-b433-4554-8099-979caf27f566/sv-benchmarks/c/product-lines/email_spec0_product21.cil.c[44895,44908] [2022-12-13 18:35:27,985 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:35:28,004 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:35:28,005 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:35:28,007 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:35:28,021 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:35:28,025 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:35:28,026 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:35:28,027 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:35:28,033 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:35:28,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:35:28,050 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:35:28,097 WARN L237 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_48c1531a-b433-4554-8099-979caf27f566/sv-benchmarks/c/product-lines/email_spec0_product21.cil.c[44895,44908] [2022-12-13 18:35:28,101 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:35:28,103 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:35:28,103 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:35:28,105 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:35:28,108 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:35:28,109 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:35:28,110 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:35:28,110 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:35:28,113 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:35:28,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:35:28,135 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:35:28,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:35:28 WrapperNode [2022-12-13 18:35:28,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:35:28,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:35:28,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:35:28,137 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:35:28,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:35:28" (1/1) ... [2022-12-13 18:35:28,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:35:28" (1/1) ... [2022-12-13 18:35:28,192 INFO L138 Inliner]: procedures = 128, calls = 214, calls flagged for inlining = 56, calls inlined = 53, statements flattened = 1049 [2022-12-13 18:35:28,192 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:35:28,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:35:28,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:35:28,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:35:28,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:35:28" (1/1) ... [2022-12-13 18:35:28,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:35:28" (1/1) ... [2022-12-13 18:35:28,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:35:28" (1/1) ... [2022-12-13 18:35:28,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:35:28" (1/1) ... [2022-12-13 18:35:28,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:35:28" (1/1) ... [2022-12-13 18:35:28,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:35:28" (1/1) ... [2022-12-13 18:35:28,233 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:35:28" (1/1) ... [2022-12-13 18:35:28,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:35:28" (1/1) ... [2022-12-13 18:35:28,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:35:28,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:35:28,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:35:28,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:35:28,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:35:28" (1/1) ... [2022-12-13 18:35:28,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:35:28,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:35:28,279 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:35:28,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:35:28,309 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-13 18:35:28,309 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-13 18:35:28,309 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-13 18:35:28,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-13 18:35:28,310 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-13 18:35:28,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-13 18:35:28,310 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-13 18:35:28,310 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-13 18:35:28,311 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-13 18:35:28,311 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-13 18:35:28,311 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-13 18:35:28,311 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-13 18:35:28,311 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-13 18:35:28,311 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-13 18:35:28,311 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-13 18:35:28,312 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-13 18:35:28,312 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-13 18:35:28,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-13 18:35:28,312 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-13 18:35:28,312 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-13 18:35:28,312 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-13 18:35:28,312 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-13 18:35:28,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-13 18:35:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:35:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-13 18:35:28,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-13 18:35:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-13 18:35:28,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-13 18:35:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-13 18:35:28,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-13 18:35:28,314 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-13 18:35:28,314 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-13 18:35:28,314 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-12-13 18:35:28,314 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-12-13 18:35:28,314 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-13 18:35:28,314 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-13 18:35:28,314 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-13 18:35:28,315 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-13 18:35:28,315 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-13 18:35:28,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-13 18:35:28,315 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-13 18:35:28,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-13 18:35:28,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:35:28,315 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-13 18:35:28,315 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-13 18:35:28,316 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-13 18:35:28,316 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-13 18:35:28,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:35:28,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:35:28,461 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:35:28,463 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:35:29,051 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:35:29,061 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:35:29,061 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 18:35:29,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:35:29 BoogieIcfgContainer [2022-12-13 18:35:29,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:35:29,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:35:29,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:35:29,070 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:35:29,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:35:27" (1/3) ... [2022-12-13 18:35:29,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34114da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:35:29, skipping insertion in model container [2022-12-13 18:35:29,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:35:28" (2/3) ... [2022-12-13 18:35:29,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34114da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:35:29, skipping insertion in model container [2022-12-13 18:35:29,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:35:29" (3/3) ... [2022-12-13 18:35:29,073 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product21.cil.c [2022-12-13 18:35:29,091 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:35:29,091 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 18:35:29,151 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:35:29,157 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=PETRI_NET, 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;@39ab3df2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:35:29,157 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 18:35:29,163 INFO L276 IsEmpty]: Start isEmpty. Operand has 377 states, 296 states have (on average 1.5675675675675675) internal successors, (464), 301 states have internal predecessors, (464), 57 states have call successors, (57), 22 states have call predecessors, (57), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-12-13 18:35:29,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-12-13 18:35:29,182 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:35:29,183 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:35:29,184 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:35:29,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:35:29,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1080900174, now seen corresponding path program 1 times [2022-12-13 18:35:29,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:35:29,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128449366] [2022-12-13 18:35:29,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:35:29,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:35:29,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:29,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:35:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:29,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:35:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:29,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:35:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:29,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 18:35:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:29,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 18:35:29,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:29,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 18:35:29,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:29,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 18:35:29,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:29,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 18:35:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:29,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 18:35:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:29,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 18:35:29,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:29,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 18:35:29,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:29,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 18:35:29,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:29,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 18:35:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:29,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 18:35:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:29,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 18:35:29,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:29,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 18:35:29,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:29,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 18:35:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:29,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:35:29,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:29,743 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-13 18:35:29,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:35:29,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128449366] [2022-12-13 18:35:29,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128449366] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:35:29,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570839035] [2022-12-13 18:35:29,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:35:29,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:35:29,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:35:29,745 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:35:29,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 18:35:30,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:30,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 18:35:30,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:35:30,053 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-12-13 18:35:30,053 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:35:30,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570839035] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:35:30,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 18:35:30,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-12-13 18:35:30,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101872293] [2022-12-13 18:35:30,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:35:30,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 18:35:30,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:35:30,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 18:35:30,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 18:35:30,092 INFO L87 Difference]: Start difference. First operand has 377 states, 296 states have (on average 1.5675675675675675) internal successors, (464), 301 states have internal predecessors, (464), 57 states have call successors, (57), 22 states have call predecessors, (57), 22 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 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 18:35:30,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:35:30,134 INFO L93 Difference]: Finished difference Result 561 states and 846 transitions. [2022-12-13 18:35:30,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 18:35:30,136 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 143 [2022-12-13 18:35:30,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:35:30,149 INFO L225 Difference]: With dead ends: 561 [2022-12-13 18:35:30,149 INFO L226 Difference]: Without dead ends: 370 [2022-12-13 18:35:30,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 18:35:30,157 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:35:30,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:35:30,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-12-13 18:35:30,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2022-12-13 18:35:30,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 290 states have (on average 1.5620689655172413) internal successors, (453), 294 states have internal predecessors, (453), 57 states have call successors, (57), 22 states have call predecessors, (57), 22 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2022-12-13 18:35:30,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 566 transitions. [2022-12-13 18:35:30,220 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 566 transitions. Word has length 143 [2022-12-13 18:35:30,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:35:30,222 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 566 transitions. [2022-12-13 18:35:30,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 18:35:30,222 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 566 transitions. [2022-12-13 18:35:30,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-12-13 18:35:30,227 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:35:30,227 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:35:30,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 18:35:30,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-13 18:35:30,428 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:35:30,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:35:30,429 INFO L85 PathProgramCache]: Analyzing trace with hash -22252966, now seen corresponding path program 1 times [2022-12-13 18:35:30,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:35:30,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322145511] [2022-12-13 18:35:30,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:35:30,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:35:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:30,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:35:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:30,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:35:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:30,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:35:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:30,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 18:35:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:30,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 18:35:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:30,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 18:35:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:30,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 18:35:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:30,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 18:35:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:30,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 18:35:30,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:30,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 18:35:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:30,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 18:35:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:30,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 18:35:30,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:30,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 18:35:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:30,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 18:35:30,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:30,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 18:35:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:30,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 18:35:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:30,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 18:35:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:30,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:35:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:30,751 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-13 18:35:30,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:35:30,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322145511] [2022-12-13 18:35:30,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322145511] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:35:30,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841155436] [2022-12-13 18:35:30,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:35:30,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:35:30,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:35:30,753 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:35:30,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 18:35:30,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:30,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 1235 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 18:35:31,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:35:31,034 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-12-13 18:35:31,034 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:35:31,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841155436] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:35:31,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 18:35:31,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-12-13 18:35:31,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721050465] [2022-12-13 18:35:31,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:35:31,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:35:31,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:35:31,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:35:31,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 18:35:31,038 INFO L87 Difference]: Start difference. First operand 370 states and 566 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 18:35:31,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:35:31,081 INFO L93 Difference]: Finished difference Result 551 states and 824 transitions. [2022-12-13 18:35:31,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:35:31,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 144 [2022-12-13 18:35:31,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:35:31,086 INFO L225 Difference]: With dead ends: 551 [2022-12-13 18:35:31,086 INFO L226 Difference]: Without dead ends: 373 [2022-12-13 18:35:31,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 18:35:31,089 INFO L413 NwaCegarLoop]: 564 mSDtfsCounter, 1 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:35:31,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1126 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:35:31,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-12-13 18:35:31,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 372. [2022-12-13 18:35:31,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 292 states have (on average 1.5582191780821917) internal successors, (455), 296 states have internal predecessors, (455), 57 states have call successors, (57), 22 states have call predecessors, (57), 22 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2022-12-13 18:35:31,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 568 transitions. [2022-12-13 18:35:31,118 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 568 transitions. Word has length 144 [2022-12-13 18:35:31,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:35:31,119 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 568 transitions. [2022-12-13 18:35:31,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 18:35:31,119 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 568 transitions. [2022-12-13 18:35:31,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-12-13 18:35:31,123 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:35:31,123 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:35:31,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 18:35:31,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:35:31,325 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:35:31,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:35:31,326 INFO L85 PathProgramCache]: Analyzing trace with hash 2146718659, now seen corresponding path program 1 times [2022-12-13 18:35:31,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:35:31,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263979967] [2022-12-13 18:35:31,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:35:31,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:35:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:31,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:35:31,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:31,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:35:31,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:31,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:35:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:31,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 18:35:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:31,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 18:35:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:31,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 18:35:31,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:31,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 18:35:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:31,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 18:35:31,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:31,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 18:35:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:31,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 18:35:31,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:31,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 18:35:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:31,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 18:35:31,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:31,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 18:35:31,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:31,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 18:35:31,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:31,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 18:35:31,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:31,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 18:35:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:31,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 18:35:31,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:31,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:35:31,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:31,635 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 18:35:31,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:35:31,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263979967] [2022-12-13 18:35:31,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263979967] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:35:31,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594597106] [2022-12-13 18:35:31,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:35:31,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:35:31,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:35:31,637 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:35:31,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 18:35:31,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:31,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 1249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 18:35:31,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:35:31,869 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-12-13 18:35:31,869 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:35:31,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594597106] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:35:31,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 18:35:31,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-12-13 18:35:31,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678776471] [2022-12-13 18:35:31,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:35:31,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:35:31,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:35:31,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:35:31,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 18:35:31,872 INFO L87 Difference]: Start difference. First operand 372 states and 568 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 18:35:31,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:35:31,898 INFO L93 Difference]: Finished difference Result 792 states and 1228 transitions. [2022-12-13 18:35:31,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:35:31,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 150 [2022-12-13 18:35:31,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:35:31,901 INFO L225 Difference]: With dead ends: 792 [2022-12-13 18:35:31,901 INFO L226 Difference]: Without dead ends: 447 [2022-12-13 18:35:31,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 18:35:31,903 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 134 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:35:31,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1108 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:35:31,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-12-13 18:35:31,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 439. [2022-12-13 18:35:31,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 345 states have (on average 1.5768115942028986) internal successors, (544), 349 states have internal predecessors, (544), 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) [2022-12-13 18:35:31,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 685 transitions. [2022-12-13 18:35:31,918 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 685 transitions. Word has length 150 [2022-12-13 18:35:31,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:35:31,919 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 685 transitions. [2022-12-13 18:35:31,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 18:35:31,919 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 685 transitions. [2022-12-13 18:35:31,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-12-13 18:35:31,921 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:35:31,921 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:35:31,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-13 18:35:32,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:35:32,122 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:35:32,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:35:32,122 INFO L85 PathProgramCache]: Analyzing trace with hash 2081321465, now seen corresponding path program 1 times [2022-12-13 18:35:32,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:35:32,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537009912] [2022-12-13 18:35:32,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:35:32,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:35:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:32,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:35:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:32,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:35:32,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:32,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:35:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:32,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 18:35:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:32,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 18:35:32,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:32,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 18:35:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:32,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 18:35:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:32,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 18:35:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:32,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 18:35:32,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:32,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 18:35:32,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:32,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 18:35:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:32,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 18:35:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:32,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 18:35:32,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:32,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 18:35:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:32,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 18:35:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:32,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 18:35:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:32,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 18:35:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:32,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:35:32,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:32,301 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 18:35:32,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:35:32,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537009912] [2022-12-13 18:35:32,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537009912] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:35:32,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074976316] [2022-12-13 18:35:32,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:35:32,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:35:32,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:35:32,303 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:35:32,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 18:35:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:32,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 1256 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 18:35:32,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:35:32,593 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 18:35:32,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:35:32,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074976316] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:35:32,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 18:35:32,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-12-13 18:35:32,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679752600] [2022-12-13 18:35:32,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:35:32,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:35:32,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:35:32,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:35:32,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 18:35:32,595 INFO L87 Difference]: Start difference. First operand 439 states and 685 transitions. Second operand has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-13 18:35:32,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:35:32,653 INFO L93 Difference]: Finished difference Result 869 states and 1360 transitions. [2022-12-13 18:35:32,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 18:35:32,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 151 [2022-12-13 18:35:32,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:35:32,656 INFO L225 Difference]: With dead ends: 869 [2022-12-13 18:35:32,656 INFO L226 Difference]: Without dead ends: 441 [2022-12-13 18:35:32,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-12-13 18:35:32,658 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 152 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2053 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:35:32,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 2053 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:35:32,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-12-13 18:35:32,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2022-12-13 18:35:32,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 346 states have (on average 1.5751445086705202) internal successors, (545), 351 states have internal predecessors, (545), 71 states have call successors, (71), 22 states have call predecessors, (71), 23 states have return successors, (72), 69 states have call predecessors, (72), 70 states have call successors, (72) [2022-12-13 18:35:32,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 688 transitions. [2022-12-13 18:35:32,674 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 688 transitions. Word has length 151 [2022-12-13 18:35:32,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:35:32,674 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 688 transitions. [2022-12-13 18:35:32,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-13 18:35:32,674 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 688 transitions. [2022-12-13 18:35:32,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-12-13 18:35:32,676 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:35:32,677 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:35:32,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 18:35:32,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:35:32,877 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:35:32,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:35:32,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1375136195, now seen corresponding path program 1 times [2022-12-13 18:35:32,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:35:32,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314459835] [2022-12-13 18:35:32,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:35:32,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:35:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:35:33,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:35:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:35:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:35:33,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 18:35:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 18:35:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 18:35:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 18:35:33,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 18:35:33,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 18:35:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 18:35:33,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 18:35:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 18:35:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 18:35:33,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 18:35:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 18:35:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 18:35:33,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:35:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,106 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-13 18:35:33,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:35:33,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314459835] [2022-12-13 18:35:33,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314459835] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:35:33,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273827169] [2022-12-13 18:35:33,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:35:33,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:35:33,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:35:33,108 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:35:33,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 18:35:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 1257 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 18:35:33,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:35:33,351 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 18:35:33,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:35:33,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273827169] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:35:33,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 18:35:33,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-12-13 18:35:33,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189762528] [2022-12-13 18:35:33,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:35:33,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:35:33,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:35:33,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:35:33,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-12-13 18:35:33,353 INFO L87 Difference]: Start difference. First operand 441 states and 688 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-13 18:35:33,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:35:33,426 INFO L93 Difference]: Finished difference Result 871 states and 1365 transitions. [2022-12-13 18:35:33,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 18:35:33,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 152 [2022-12-13 18:35:33,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:35:33,430 INFO L225 Difference]: With dead ends: 871 [2022-12-13 18:35:33,430 INFO L226 Difference]: Without dead ends: 443 [2022-12-13 18:35:33,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-12-13 18:35:33,432 INFO L413 NwaCegarLoop]: 555 mSDtfsCounter, 151 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2042 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:35:33,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 2042 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:35:33,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-12-13 18:35:33,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2022-12-13 18:35:33,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 347 states have (on average 1.5734870317002883) internal successors, (546), 353 states have internal predecessors, (546), 71 states have call successors, (71), 22 states have call predecessors, (71), 24 states have return successors, (77), 69 states have call predecessors, (77), 70 states have call successors, (77) [2022-12-13 18:35:33,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 694 transitions. [2022-12-13 18:35:33,457 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 694 transitions. Word has length 152 [2022-12-13 18:35:33,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:35:33,457 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 694 transitions. [2022-12-13 18:35:33,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-13 18:35:33,458 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 694 transitions. [2022-12-13 18:35:33,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 18:35:33,461 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:35:33,461 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:35:33,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 18:35:33,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:35:33,662 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:35:33,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:35:33,662 INFO L85 PathProgramCache]: Analyzing trace with hash 447023128, now seen corresponding path program 1 times [2022-12-13 18:35:33,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:35:33,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212261584] [2022-12-13 18:35:33,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:35:33,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:35:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:35:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:35:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:35:33,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:35:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:35:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 18:35:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 18:35:33,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 18:35:33,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 18:35:33,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 18:35:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 18:35:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 18:35:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 18:35:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:35:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:35:33,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:33,870 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-13 18:35:33,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:35:33,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212261584] [2022-12-13 18:35:33,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212261584] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:35:33,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:35:33,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 18:35:33,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453526999] [2022-12-13 18:35:33,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:35:33,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 18:35:33,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:35:33,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 18:35:33,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 18:35:33,872 INFO L87 Difference]: Start difference. First operand 443 states and 694 transitions. Second operand has 9 states, 8 states have (on average 10.5) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 18:35:35,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:35:35,626 INFO L93 Difference]: Finished difference Result 1029 states and 1627 transitions. [2022-12-13 18:35:35,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 18:35:35,626 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.5) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 134 [2022-12-13 18:35:35,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:35:35,629 INFO L225 Difference]: With dead ends: 1029 [2022-12-13 18:35:35,629 INFO L226 Difference]: Without dead ends: 609 [2022-12-13 18:35:35,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 18:35:35,630 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1439 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2675 mSolverCounterSat, 509 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1459 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 3184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 509 IncrementalHoareTripleChecker+Valid, 2675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 18:35:35,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1459 Valid, 1192 Invalid, 3184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [509 Valid, 2675 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 18:35:35,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2022-12-13 18:35:35,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 443. [2022-12-13 18:35:35,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 347 states have (on average 1.5734870317002883) internal successors, (546), 353 states have internal predecessors, (546), 71 states have call successors, (71), 22 states have call predecessors, (71), 24 states have return successors, (76), 69 states have call predecessors, (76), 70 states have call successors, (76) [2022-12-13 18:35:35,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 693 transitions. [2022-12-13 18:35:35,657 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 693 transitions. Word has length 134 [2022-12-13 18:35:35,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:35:35,658 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 693 transitions. [2022-12-13 18:35:35,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.5) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 18:35:35,658 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 693 transitions. [2022-12-13 18:35:35,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-12-13 18:35:35,660 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:35:35,660 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:35:35,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 18:35:35,660 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:35:35,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:35:35,660 INFO L85 PathProgramCache]: Analyzing trace with hash -968610186, now seen corresponding path program 2 times [2022-12-13 18:35:35,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:35:35,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044650611] [2022-12-13 18:35:35,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:35:35,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:35:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:35,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:35:35,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:35,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:35:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:35,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:35:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:35,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:35:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:35,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:35:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:35,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 18:35:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:35,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 18:35:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:35,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 18:35:35,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:35,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 18:35:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:35,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 18:35:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:35,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 18:35:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:35,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 18:35:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:35,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 18:35:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:35,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 18:35:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:35,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:35:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:35,805 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-13 18:35:35,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:35:35,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044650611] [2022-12-13 18:35:35,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044650611] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:35:35,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:35:35,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 18:35:35,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504672266] [2022-12-13 18:35:35,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:35:35,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 18:35:35,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:35:35,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 18:35:35,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 18:35:35,807 INFO L87 Difference]: Start difference. First operand 443 states and 693 transitions. Second operand has 9 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 18:35:37,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:35:37,364 INFO L93 Difference]: Finished difference Result 1031 states and 1630 transitions. [2022-12-13 18:35:37,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 18:35:37,365 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 135 [2022-12-13 18:35:37,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:35:37,367 INFO L225 Difference]: With dead ends: 1031 [2022-12-13 18:35:37,367 INFO L226 Difference]: Without dead ends: 611 [2022-12-13 18:35:37,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 18:35:37,369 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1405 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2708 mSolverCounterSat, 528 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1425 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 3236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 528 IncrementalHoareTripleChecker+Valid, 2708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 18:35:37,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1425 Valid, 1192 Invalid, 3236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [528 Valid, 2708 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 18:35:37,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2022-12-13 18:35:37,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 445. [2022-12-13 18:35:37,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 348 states have (on average 1.5718390804597702) internal successors, (547), 355 states have internal predecessors, (547), 71 states have call successors, (71), 22 states have call predecessors, (71), 25 states have return successors, (78), 69 states have call predecessors, (78), 70 states have call successors, (78) [2022-12-13 18:35:37,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 696 transitions. [2022-12-13 18:35:37,394 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 696 transitions. Word has length 135 [2022-12-13 18:35:37,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:35:37,394 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 696 transitions. [2022-12-13 18:35:37,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 18:35:37,394 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 696 transitions. [2022-12-13 18:35:37,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-12-13 18:35:37,397 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:35:37,397 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:35:37,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 18:35:37,397 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:35:37,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:35:37,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1641071833, now seen corresponding path program 1 times [2022-12-13 18:35:37,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:35:37,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528604601] [2022-12-13 18:35:37,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:35:37,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:35:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:37,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:35:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:37,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:35:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:37,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:35:37,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:37,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:35:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:37,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:35:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:37,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:35:37,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:37,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 18:35:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:37,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 18:35:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:37,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 18:35:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:37,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 18:35:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:37,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 18:35:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:37,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 18:35:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:37,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 18:35:37,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:37,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 18:35:37,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:37,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:35:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:37,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 18:35:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:37,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 18:35:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:37,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:35:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:37,622 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-13 18:35:37,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:35:37,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528604601] [2022-12-13 18:35:37,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528604601] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:35:37,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:35:37,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 18:35:37,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438264852] [2022-12-13 18:35:37,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:35:37,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 18:35:37,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:35:37,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 18:35:37,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-12-13 18:35:37,624 INFO L87 Difference]: Start difference. First operand 445 states and 696 transitions. Second operand has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 8 states have internal predecessors, (96), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-12-13 18:35:39,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:35:39,423 INFO L93 Difference]: Finished difference Result 1029 states and 1625 transitions. [2022-12-13 18:35:39,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 18:35:39,424 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 8 states have internal predecessors, (96), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 155 [2022-12-13 18:35:39,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:35:39,426 INFO L225 Difference]: With dead ends: 1029 [2022-12-13 18:35:39,427 INFO L226 Difference]: Without dead ends: 611 [2022-12-13 18:35:39,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-12-13 18:35:39,428 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 1527 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4559 mSolverCounterSat, 544 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 5103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 544 IncrementalHoareTripleChecker+Valid, 4559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-13 18:35:39,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1527 Valid, 1555 Invalid, 5103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [544 Valid, 4559 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-13 18:35:39,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2022-12-13 18:35:39,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 445. [2022-12-13 18:35:39,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 348 states have (on average 1.5718390804597702) internal successors, (547), 355 states have internal predecessors, (547), 71 states have call successors, (71), 22 states have call predecessors, (71), 25 states have return successors, (77), 69 states have call predecessors, (77), 70 states have call successors, (77) [2022-12-13 18:35:39,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 695 transitions. [2022-12-13 18:35:39,466 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 695 transitions. Word has length 155 [2022-12-13 18:35:39,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:35:39,466 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 695 transitions. [2022-12-13 18:35:39,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 8 states have internal predecessors, (96), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-12-13 18:35:39,467 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 695 transitions. [2022-12-13 18:35:39,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-12-13 18:35:39,470 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:35:39,470 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:35:39,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 18:35:39,470 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:35:39,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:35:39,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1863149444, now seen corresponding path program 1 times [2022-12-13 18:35:39,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:35:39,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336721213] [2022-12-13 18:35:39,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:35:39,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:35:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:39,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:35:39,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:39,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:35:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:39,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:35:39,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:39,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:35:39,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:39,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:35:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:39,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:35:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:39,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 18:35:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:39,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 18:35:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:39,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 18:35:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:39,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 18:35:39,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:39,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 18:35:39,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:39,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 18:35:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:39,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 18:35:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:39,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 18:35:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:39,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:35:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:39,693 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-13 18:35:39,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:35:39,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336721213] [2022-12-13 18:35:39,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336721213] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:35:39,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:35:39,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 18:35:39,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578211416] [2022-12-13 18:35:39,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:35:39,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 18:35:39,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:35:39,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 18:35:39,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-12-13 18:35:39,695 INFO L87 Difference]: Start difference. First operand 445 states and 695 transitions. Second operand has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-12-13 18:35:41,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:35:41,624 INFO L93 Difference]: Finished difference Result 1031 states and 1631 transitions. [2022-12-13 18:35:41,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 18:35:41,625 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 137 [2022-12-13 18:35:41,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:35:41,628 INFO L225 Difference]: With dead ends: 1031 [2022-12-13 18:35:41,629 INFO L226 Difference]: Without dead ends: 613 [2022-12-13 18:35:41,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-12-13 18:35:41,630 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 1537 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4486 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1537 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 5036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 4486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-13 18:35:41,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1537 Valid, 1555 Invalid, 5036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 4486 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-13 18:35:41,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-12-13 18:35:41,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 447. [2022-12-13 18:35:41,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 349 states have (on average 1.5702005730659025) internal successors, (548), 357 states have internal predecessors, (548), 71 states have call successors, (71), 22 states have call predecessors, (71), 26 states have return successors, (82), 69 states have call predecessors, (82), 70 states have call successors, (82) [2022-12-13 18:35:41,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 701 transitions. [2022-12-13 18:35:41,665 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 701 transitions. Word has length 137 [2022-12-13 18:35:41,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:35:41,665 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 701 transitions. [2022-12-13 18:35:41,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-12-13 18:35:41,665 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 701 transitions. [2022-12-13 18:35:41,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-12-13 18:35:41,667 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:35:41,667 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:35:41,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 18:35:41,668 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:35:41,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:35:41,668 INFO L85 PathProgramCache]: Analyzing trace with hash -213880642, now seen corresponding path program 1 times [2022-12-13 18:35:41,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:35:41,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387949526] [2022-12-13 18:35:41,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:35:41,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:35:41,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:41,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:35:41,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:41,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:35:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:41,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:35:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:41,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:35:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:41,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:35:41,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:41,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:35:41,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:41,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 18:35:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:41,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 18:35:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:41,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 18:35:41,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:41,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 18:35:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:41,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 18:35:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:41,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 18:35:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:41,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 18:35:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:41,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 18:35:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:41,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 18:35:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:41,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 18:35:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:41,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 18:35:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:41,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:35:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:41,786 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-13 18:35:41,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:35:41,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387949526] [2022-12-13 18:35:41,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387949526] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:35:41,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427671281] [2022-12-13 18:35:41,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:35:41,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:35:41,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:35:41,787 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:35:41,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 18:35:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:42,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 1262 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 18:35:42,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:35:42,043 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-13 18:35:42,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:35:42,111 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-13 18:35:42,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427671281] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:35:42,111 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:35:42,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2022-12-13 18:35:42,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167725550] [2022-12-13 18:35:42,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:35:42,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 18:35:42,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:35:42,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 18:35:42,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-12-13 18:35:42,114 INFO L87 Difference]: Start difference. First operand 447 states and 701 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 7 states have internal predecessors, (134), 2 states have call successors, (44), 6 states have call predecessors, (44), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-13 18:35:43,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:35:43,717 INFO L93 Difference]: Finished difference Result 1233 states and 2024 transitions. [2022-12-13 18:35:43,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 18:35:43,717 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 7 states have internal predecessors, (134), 2 states have call successors, (44), 6 states have call predecessors, (44), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 157 [2022-12-13 18:35:43,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:35:43,722 INFO L225 Difference]: With dead ends: 1233 [2022-12-13 18:35:43,722 INFO L226 Difference]: Without dead ends: 1055 [2022-12-13 18:35:43,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2022-12-13 18:35:43,723 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 1876 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 2504 mSolverCounterSat, 729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1930 SdHoareTripleChecker+Valid, 1733 SdHoareTripleChecker+Invalid, 3233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 729 IncrementalHoareTripleChecker+Valid, 2504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 18:35:43,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1930 Valid, 1733 Invalid, 3233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [729 Valid, 2504 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 18:35:43,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2022-12-13 18:35:43,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 865. [2022-12-13 18:35:43,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 688 states have (on average 1.629360465116279) internal successors, (1121), 696 states have internal predecessors, (1121), 150 states have call successors, (150), 22 states have call predecessors, (150), 26 states have return successors, (171), 148 states have call predecessors, (171), 149 states have call successors, (171) [2022-12-13 18:35:43,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1442 transitions. [2022-12-13 18:35:43,769 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1442 transitions. Word has length 157 [2022-12-13 18:35:43,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:35:43,770 INFO L495 AbstractCegarLoop]: Abstraction has 865 states and 1442 transitions. [2022-12-13 18:35:43,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 7 states have internal predecessors, (134), 2 states have call successors, (44), 6 states have call predecessors, (44), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-13 18:35:43,770 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1442 transitions. [2022-12-13 18:35:43,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-12-13 18:35:43,773 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:35:43,773 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:35:43,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 18:35:43,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 18:35:43,975 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:35:43,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:35:43,977 INFO L85 PathProgramCache]: Analyzing trace with hash 388591441, now seen corresponding path program 1 times [2022-12-13 18:35:43,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:35:43,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610200918] [2022-12-13 18:35:43,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:35:43,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:35:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:44,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:35:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:44,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:35:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:44,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:35:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:44,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:35:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:44,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:35:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:44,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:35:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:44,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 18:35:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:44,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 18:35:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:44,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 18:35:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:44,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 18:35:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:44,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 18:35:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:44,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 18:35:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:44,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 18:35:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:44,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 18:35:44,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:44,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:35:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:44,086 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 18:35:44,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:35:44,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610200918] [2022-12-13 18:35:44,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610200918] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:35:44,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:35:44,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:35:44,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289460022] [2022-12-13 18:35:44,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:35:44,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:35:44,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:35:44,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:35:44,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:35:44,087 INFO L87 Difference]: Start difference. First operand 865 states and 1442 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 18:35:45,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:35:45,374 INFO L93 Difference]: Finished difference Result 2251 states and 3825 transitions. [2022-12-13 18:35:45,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 18:35:45,375 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 144 [2022-12-13 18:35:45,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:35:45,379 INFO L225 Difference]: With dead ends: 2251 [2022-12-13 18:35:45,380 INFO L226 Difference]: Without dead ends: 1454 [2022-12-13 18:35:45,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 18:35:45,381 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 1422 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 1558 mSolverCounterSat, 622 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 2180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 622 IncrementalHoareTripleChecker+Valid, 1558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:35:45,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1440 Valid, 1030 Invalid, 2180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [622 Valid, 1558 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 18:35:45,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2022-12-13 18:35:45,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 1280. [2022-12-13 18:35:45,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 1024 states have (on average 1.6416015625) internal successors, (1681), 1032 states have internal predecessors, (1681), 229 states have call successors, (229), 22 states have call predecessors, (229), 26 states have return successors, (260), 227 states have call predecessors, (260), 228 states have call successors, (260) [2022-12-13 18:35:45,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 2170 transitions. [2022-12-13 18:35:45,455 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 2170 transitions. Word has length 144 [2022-12-13 18:35:45,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:35:45,455 INFO L495 AbstractCegarLoop]: Abstraction has 1280 states and 2170 transitions. [2022-12-13 18:35:45,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 18:35:45,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 2170 transitions. [2022-12-13 18:35:45,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 18:35:45,460 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:35:45,460 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:35:45,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 18:35:45,461 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:35:45,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:35:45,461 INFO L85 PathProgramCache]: Analyzing trace with hash -300368114, now seen corresponding path program 1 times [2022-12-13 18:35:45,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:35:45,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337584105] [2022-12-13 18:35:45,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:35:45,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:35:45,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:45,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:35:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:45,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:35:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:45,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:35:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:45,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:35:45,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:45,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:35:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:45,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:35:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:45,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 18:35:45,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:45,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 18:35:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:45,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 18:35:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:45,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 18:35:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:45,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 18:35:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:45,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 18:35:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:45,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 18:35:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:45,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 18:35:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:45,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:35:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:45,550 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 18:35:45,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:35:45,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337584105] [2022-12-13 18:35:45,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337584105] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:35:45,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:35:45,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:35:45,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295003786] [2022-12-13 18:35:45,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:35:45,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:35:45,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:35:45,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:35:45,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:35:45,553 INFO L87 Difference]: Start difference. First operand 1280 states and 2170 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 18:35:46,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:35:46,802 INFO L93 Difference]: Finished difference Result 3265 states and 5603 transitions. [2022-12-13 18:35:46,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 18:35:46,803 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 145 [2022-12-13 18:35:46,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:35:46,808 INFO L225 Difference]: With dead ends: 3265 [2022-12-13 18:35:46,809 INFO L226 Difference]: Without dead ends: 2106 [2022-12-13 18:35:46,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 18:35:46,811 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1415 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 596 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1433 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 2162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 596 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:35:46,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1433 Valid, 1001 Invalid, 2162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [596 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 18:35:46,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2106 states. [2022-12-13 18:35:46,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2106 to 1932. [2022-12-13 18:35:46,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1932 states, 1557 states have (on average 1.6493256262042388) internal successors, (2568), 1565 states have internal predecessors, (2568), 348 states have call successors, (348), 22 states have call predecessors, (348), 26 states have return successors, (379), 346 states have call predecessors, (379), 347 states have call successors, (379) [2022-12-13 18:35:46,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 3295 transitions. [2022-12-13 18:35:46,910 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 3295 transitions. Word has length 145 [2022-12-13 18:35:46,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:35:46,910 INFO L495 AbstractCegarLoop]: Abstraction has 1932 states and 3295 transitions. [2022-12-13 18:35:46,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 18:35:46,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 3295 transitions. [2022-12-13 18:35:46,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-12-13 18:35:46,918 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:35:46,918 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:35:46,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 18:35:46,919 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:35:46,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:35:46,919 INFO L85 PathProgramCache]: Analyzing trace with hash 473280829, now seen corresponding path program 1 times [2022-12-13 18:35:46,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:35:46,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065116013] [2022-12-13 18:35:46,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:35:46,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:35:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:46,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:35:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:46,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:35:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:46,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:35:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:46,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:35:46,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:46,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:35:46,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:46,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:35:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:46,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 18:35:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:46,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 18:35:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:46,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 18:35:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:46,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 18:35:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:46,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 18:35:46,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:47,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 18:35:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:47,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 18:35:47,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:47,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 18:35:47,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:47,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 18:35:47,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:47,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-12-13 18:35:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:47,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 18:35:47,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:47,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:35:47,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:47,012 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-13 18:35:47,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:35:47,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065116013] [2022-12-13 18:35:47,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065116013] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:35:47,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:35:47,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:35:47,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742502222] [2022-12-13 18:35:47,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:35:47,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:35:47,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:35:47,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:35:47,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:35:47,014 INFO L87 Difference]: Start difference. First operand 1932 states and 3295 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 18:35:48,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:35:48,339 INFO L93 Difference]: Finished difference Result 4795 states and 8305 transitions. [2022-12-13 18:35:48,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 18:35:48,339 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 165 [2022-12-13 18:35:48,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:35:48,350 INFO L225 Difference]: With dead ends: 4795 [2022-12-13 18:35:48,350 INFO L226 Difference]: Without dead ends: 3109 [2022-12-13 18:35:48,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 18:35:48,354 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 1401 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 576 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1419 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 2151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 576 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:35:48,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1419 Valid, 1003 Invalid, 2151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [576 Valid, 1575 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 18:35:48,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2022-12-13 18:35:48,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 2935. [2022-12-13 18:35:48,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2935 states, 2398 states have (on average 1.6555462885738115) internal successors, (3970), 2406 states have internal predecessors, (3970), 510 states have call successors, (510), 22 states have call predecessors, (510), 26 states have return successors, (557), 508 states have call predecessors, (557), 509 states have call successors, (557) [2022-12-13 18:35:48,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2935 states to 2935 states and 5037 transitions. [2022-12-13 18:35:48,529 INFO L78 Accepts]: Start accepts. Automaton has 2935 states and 5037 transitions. Word has length 165 [2022-12-13 18:35:48,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:35:48,529 INFO L495 AbstractCegarLoop]: Abstraction has 2935 states and 5037 transitions. [2022-12-13 18:35:48,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 18:35:48,529 INFO L276 IsEmpty]: Start isEmpty. Operand 2935 states and 5037 transitions. [2022-12-13 18:35:48,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-12-13 18:35:48,538 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:35:48,538 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:35:48,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 18:35:48,539 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:35:48,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:35:48,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1127101345, now seen corresponding path program 1 times [2022-12-13 18:35:48,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:35:48,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963569052] [2022-12-13 18:35:48,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:35:48,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:35:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:48,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:35:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:48,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:35:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:48,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:35:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:48,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:35:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:48,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:35:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:48,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:35:48,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:48,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 18:35:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:48,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 18:35:48,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:48,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 18:35:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:48,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 18:35:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:48,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 18:35:48,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:48,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 18:35:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:48,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 18:35:48,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:48,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 18:35:48,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:48,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 18:35:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:48,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-12-13 18:35:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:48,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-12-13 18:35:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:48,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:35:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:48,635 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-13 18:35:48,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:35:48,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963569052] [2022-12-13 18:35:48,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963569052] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:35:48,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:35:48,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:35:48,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172001979] [2022-12-13 18:35:48,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:35:48,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:35:48,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:35:48,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:35:48,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:35:48,636 INFO L87 Difference]: Start difference. First operand 2935 states and 5037 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 18:35:50,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:35:50,134 INFO L93 Difference]: Finished difference Result 7219 states and 12594 transitions. [2022-12-13 18:35:50,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 18:35:50,134 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 166 [2022-12-13 18:35:50,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:35:50,151 INFO L225 Difference]: With dead ends: 7219 [2022-12-13 18:35:50,151 INFO L226 Difference]: Without dead ends: 4734 [2022-12-13 18:35:50,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 18:35:50,155 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1452 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1519 mSolverCounterSat, 594 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 2113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 594 IncrementalHoareTripleChecker+Valid, 1519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:35:50,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1470 Valid, 999 Invalid, 2113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [594 Valid, 1519 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 18:35:50,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4734 states. [2022-12-13 18:35:50,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4734 to 4560. [2022-12-13 18:35:50,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4560 states, 3778 states have (on average 1.6598729486500794) internal successors, (6271), 3786 states have internal predecessors, (6271), 755 states have call successors, (755), 22 states have call predecessors, (755), 26 states have return successors, (828), 753 states have call predecessors, (828), 754 states have call successors, (828) [2022-12-13 18:35:50,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4560 states to 4560 states and 7854 transitions. [2022-12-13 18:35:50,381 INFO L78 Accepts]: Start accepts. Automaton has 4560 states and 7854 transitions. Word has length 166 [2022-12-13 18:35:50,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:35:50,381 INFO L495 AbstractCegarLoop]: Abstraction has 4560 states and 7854 transitions. [2022-12-13 18:35:50,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 18:35:50,381 INFO L276 IsEmpty]: Start isEmpty. Operand 4560 states and 7854 transitions. [2022-12-13 18:35:50,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-12-13 18:35:50,392 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:35:50,392 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:35:50,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 18:35:50,392 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:35:50,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:35:50,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1563684365, now seen corresponding path program 1 times [2022-12-13 18:35:50,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:35:50,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986145906] [2022-12-13 18:35:50,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:35:50,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:35:50,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:50,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:35:50,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:50,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:35:50,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:50,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:35:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:50,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:35:50,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:50,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:35:50,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:50,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:35:50,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:50,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 18:35:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:50,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 18:35:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:50,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 18:35:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:50,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 18:35:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:50,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 18:35:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:50,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 18:35:50,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:50,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 18:35:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:50,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 18:35:50,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:50,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:35:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:50,473 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 18:35:50,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:35:50,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986145906] [2022-12-13 18:35:50,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986145906] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:35:50,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:35:50,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:35:50,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304530387] [2022-12-13 18:35:50,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:35:50,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:35:50,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:35:50,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:35:50,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:35:50,475 INFO L87 Difference]: Start difference. First operand 4560 states and 7854 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 18:35:52,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:35:52,002 INFO L93 Difference]: Finished difference Result 11265 states and 19754 transitions. [2022-12-13 18:35:52,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 18:35:52,003 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 148 [2022-12-13 18:35:52,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:35:52,025 INFO L225 Difference]: With dead ends: 11265 [2022-12-13 18:35:52,025 INFO L226 Difference]: Without dead ends: 7467 [2022-12-13 18:35:52,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 18:35:52,033 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 1422 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 1564 mSolverCounterSat, 589 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 2153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 589 IncrementalHoareTripleChecker+Valid, 1564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:35:52,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1440 Valid, 1012 Invalid, 2153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [589 Valid, 1564 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 18:35:52,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7467 states. [2022-12-13 18:35:52,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7467 to 7293. [2022-12-13 18:35:52,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7293 states, 6018 states have (on average 1.65769358590894) internal successors, (9976), 6026 states have internal predecessors, (9976), 1248 states have call successors, (1248), 22 states have call predecessors, (1248), 26 states have return successors, (1365), 1246 states have call predecessors, (1365), 1247 states have call successors, (1365) [2022-12-13 18:35:52,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7293 states to 7293 states and 12589 transitions. [2022-12-13 18:35:52,443 INFO L78 Accepts]: Start accepts. Automaton has 7293 states and 12589 transitions. Word has length 148 [2022-12-13 18:35:52,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:35:52,443 INFO L495 AbstractCegarLoop]: Abstraction has 7293 states and 12589 transitions. [2022-12-13 18:35:52,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 18:35:52,444 INFO L276 IsEmpty]: Start isEmpty. Operand 7293 states and 12589 transitions. [2022-12-13 18:35:52,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-12-13 18:35:52,462 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:35:52,462 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:35:52,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 18:35:52,463 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:35:52,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:35:52,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1012976381, now seen corresponding path program 1 times [2022-12-13 18:35:52,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:35:52,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797697521] [2022-12-13 18:35:52,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:35:52,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:35:52,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:52,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:35:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:52,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:35:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:52,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:35:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:52,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:35:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:52,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:35:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:52,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:35:52,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:52,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 18:35:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:52,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 18:35:52,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:52,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 18:35:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:52,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 18:35:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:52,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 18:35:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:52,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 18:35:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:52,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 18:35:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:52,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 18:35:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:52,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-12-13 18:35:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:52,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 18:35:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:52,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-12-13 18:35:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:52,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:35:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:52,579 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-13 18:35:52,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:35:52,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797697521] [2022-12-13 18:35:52,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797697521] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:35:52,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:35:52,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:35:52,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516124690] [2022-12-13 18:35:52,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:35:52,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:35:52,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:35:52,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:35:52,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:35:52,581 INFO L87 Difference]: Start difference. First operand 7293 states and 12589 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 18:35:54,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:35:54,387 INFO L93 Difference]: Finished difference Result 18600 states and 32638 transitions. [2022-12-13 18:35:54,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 18:35:54,387 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 168 [2022-12-13 18:35:54,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:35:54,425 INFO L225 Difference]: With dead ends: 18600 [2022-12-13 18:35:54,425 INFO L226 Difference]: Without dead ends: 12446 [2022-12-13 18:35:54,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 18:35:54,437 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 1393 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 589 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 2217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 589 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:35:54,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1411 Valid, 1002 Invalid, 2217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [589 Valid, 1628 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 18:35:54,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12446 states. [2022-12-13 18:35:55,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12446 to 12272. [2022-12-13 18:35:55,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12272 states, 10175 states have (on average 1.6575921375921376) internal successors, (16866), 10183 states have internal predecessors, (16866), 2070 states have call successors, (2070), 22 states have call predecessors, (2070), 26 states have return successors, (2265), 2068 states have call predecessors, (2265), 2069 states have call successors, (2265) [2022-12-13 18:35:55,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12272 states to 12272 states and 21201 transitions. [2022-12-13 18:35:55,045 INFO L78 Accepts]: Start accepts. Automaton has 12272 states and 21201 transitions. Word has length 168 [2022-12-13 18:35:55,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:35:55,045 INFO L495 AbstractCegarLoop]: Abstraction has 12272 states and 21201 transitions. [2022-12-13 18:35:55,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 18:35:55,046 INFO L276 IsEmpty]: Start isEmpty. Operand 12272 states and 21201 transitions. [2022-12-13 18:35:55,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-12-13 18:35:55,067 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:35:55,067 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:35:55,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 18:35:55,068 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:35:55,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:35:55,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1314432935, now seen corresponding path program 1 times [2022-12-13 18:35:55,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:35:55,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135312187] [2022-12-13 18:35:55,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:35:55,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:35:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:55,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:35:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:55,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:35:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:55,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:35:55,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:55,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:35:55,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:55,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:35:55,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:55,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:35:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:55,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 18:35:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:55,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 18:35:55,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:55,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 18:35:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:55,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 18:35:55,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:55,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 18:35:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:55,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 18:35:55,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:55,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 18:35:55,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:55,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 18:35:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:55,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 18:35:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:55,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 18:35:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:55,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 18:35:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:55,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:35:55,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:55,154 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-13 18:35:55,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:35:55,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135312187] [2022-12-13 18:35:55,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135312187] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:35:55,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:35:55,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:35:55,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898151243] [2022-12-13 18:35:55,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:35:55,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:35:55,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:35:55,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:35:55,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:35:55,155 INFO L87 Difference]: Start difference. First operand 12272 states and 21201 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 18:35:57,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:35:57,458 INFO L93 Difference]: Finished difference Result 29558 states and 51603 transitions. [2022-12-13 18:35:57,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 18:35:57,459 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 169 [2022-12-13 18:35:57,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:35:57,513 INFO L225 Difference]: With dead ends: 29558 [2022-12-13 18:35:57,513 INFO L226 Difference]: Without dead ends: 19399 [2022-12-13 18:35:57,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 18:35:57,533 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 1415 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 1549 mSolverCounterSat, 581 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1433 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 2130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 581 IncrementalHoareTripleChecker+Valid, 1549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 18:35:57,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1433 Valid, 976 Invalid, 2130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [581 Valid, 1549 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 18:35:57,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19399 states. [2022-12-13 18:35:58,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19399 to 19225. [2022-12-13 18:35:58,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19225 states, 15925 states have (on average 1.633155416012559) internal successors, (26008), 15933 states have internal predecessors, (26008), 3273 states have call successors, (3273), 22 states have call predecessors, (3273), 26 states have return successors, (3612), 3271 states have call predecessors, (3612), 3272 states have call successors, (3612) [2022-12-13 18:35:58,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19225 states to 19225 states and 32893 transitions. [2022-12-13 18:35:58,634 INFO L78 Accepts]: Start accepts. Automaton has 19225 states and 32893 transitions. Word has length 169 [2022-12-13 18:35:58,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:35:58,634 INFO L495 AbstractCegarLoop]: Abstraction has 19225 states and 32893 transitions. [2022-12-13 18:35:58,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 18:35:58,635 INFO L276 IsEmpty]: Start isEmpty. Operand 19225 states and 32893 transitions. [2022-12-13 18:35:58,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-12-13 18:35:58,669 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:35:58,669 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:35:58,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 18:35:58,669 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:35:58,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:35:58,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1844589176, now seen corresponding path program 1 times [2022-12-13 18:35:58,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:35:58,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392044757] [2022-12-13 18:35:58,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:35:58,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:35:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:58,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:35:58,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:58,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:35:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:58,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:35:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:58,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:35:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:58,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:35:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:58,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:35:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:58,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 18:35:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:58,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 18:35:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:58,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 18:35:58,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:58,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 18:35:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:58,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 18:35:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:58,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 18:35:58,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:58,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 18:35:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:58,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 18:35:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:58,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:35:58,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:35:58,751 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 18:35:58,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:35:58,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392044757] [2022-12-13 18:35:58,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392044757] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:35:58,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:35:58,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:35:58,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691948424] [2022-12-13 18:35:58,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:35:58,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:35:58,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:35:58,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:35:58,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:35:58,753 INFO L87 Difference]: Start difference. First operand 19225 states and 32893 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 18:36:01,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:36:01,858 INFO L93 Difference]: Finished difference Result 50990 states and 88723 transitions. [2022-12-13 18:36:01,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 18:36:01,859 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 151 [2022-12-13 18:36:01,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:36:01,941 INFO L225 Difference]: With dead ends: 50990 [2022-12-13 18:36:01,941 INFO L226 Difference]: Without dead ends: 34520 [2022-12-13 18:36:01,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 18:36:01,974 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 1438 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 1578 mSolverCounterSat, 597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 2175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 597 IncrementalHoareTripleChecker+Valid, 1578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 18:36:01,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 1004 Invalid, 2175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [597 Valid, 1578 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 18:36:01,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34520 states. [2022-12-13 18:36:03,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34520 to 34346. [2022-12-13 18:36:04,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34346 states, 28596 states have (on average 1.6299832144355855) internal successors, (46611), 28604 states have internal predecessors, (46611), 5723 states have call successors, (5723), 22 states have call predecessors, (5723), 26 states have return successors, (6336), 5721 states have call predecessors, (6336), 5722 states have call successors, (6336) [2022-12-13 18:36:04,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34346 states to 34346 states and 58670 transitions. [2022-12-13 18:36:04,117 INFO L78 Accepts]: Start accepts. Automaton has 34346 states and 58670 transitions. Word has length 151 [2022-12-13 18:36:04,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:36:04,117 INFO L495 AbstractCegarLoop]: Abstraction has 34346 states and 58670 transitions. [2022-12-13 18:36:04,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 18:36:04,117 INFO L276 IsEmpty]: Start isEmpty. Operand 34346 states and 58670 transitions. [2022-12-13 18:36:04,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-12-13 18:36:04,151 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:36:04,151 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:36:04,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 18:36:04,151 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:36:04,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:36:04,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1519766101, now seen corresponding path program 1 times [2022-12-13 18:36:04,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:36:04,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413247867] [2022-12-13 18:36:04,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:36:04,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:36:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:04,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:36:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:04,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:36:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:04,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:36:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:04,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:36:04,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:04,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:36:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:04,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:36:04,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:04,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 18:36:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:04,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 18:36:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:04,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 18:36:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:04,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 18:36:04,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:04,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 18:36:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:04,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 18:36:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:04,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 18:36:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:04,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 18:36:04,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:04,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:36:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:04,230 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 18:36:04,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:36:04,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413247867] [2022-12-13 18:36:04,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413247867] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:36:04,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:36:04,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:36:04,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789342312] [2022-12-13 18:36:04,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:36:04,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:36:04,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:36:04,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:36:04,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:36:04,232 INFO L87 Difference]: Start difference. First operand 34346 states and 58670 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 18:36:08,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:36:08,869 INFO L93 Difference]: Finished difference Result 93862 states and 162517 transitions. [2022-12-13 18:36:08,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 18:36:08,870 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 152 [2022-12-13 18:36:08,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:36:09,075 INFO L225 Difference]: With dead ends: 93862 [2022-12-13 18:36:09,075 INFO L226 Difference]: Without dead ends: 63187 [2022-12-13 18:36:09,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 18:36:09,140 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 1438 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 1517 mSolverCounterSat, 612 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 612 IncrementalHoareTripleChecker+Valid, 1517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:36:09,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 1012 Invalid, 2129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [612 Valid, 1517 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 18:36:09,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63187 states. [2022-12-13 18:36:12,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63187 to 63013. [2022-12-13 18:36:12,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63013 states, 52750 states have (on average 1.6258199052132702) internal successors, (85762), 52758 states have internal predecessors, (85762), 10236 states have call successors, (10236), 22 states have call predecessors, (10236), 26 states have return successors, (11381), 10234 states have call predecessors, (11381), 10235 states have call successors, (11381) [2022-12-13 18:36:12,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63013 states to 63013 states and 107379 transitions. [2022-12-13 18:36:12,953 INFO L78 Accepts]: Start accepts. Automaton has 63013 states and 107379 transitions. Word has length 152 [2022-12-13 18:36:12,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:36:12,953 INFO L495 AbstractCegarLoop]: Abstraction has 63013 states and 107379 transitions. [2022-12-13 18:36:12,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 18:36:12,953 INFO L276 IsEmpty]: Start isEmpty. Operand 63013 states and 107379 transitions. [2022-12-13 18:36:13,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-12-13 18:36:13,000 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:36:13,001 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:36:13,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 18:36:13,001 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:36:13,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:36:13,001 INFO L85 PathProgramCache]: Analyzing trace with hash -706529400, now seen corresponding path program 1 times [2022-12-13 18:36:13,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:36:13,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440451839] [2022-12-13 18:36:13,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:36:13,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:36:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:13,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:36:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:13,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:36:13,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:13,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:36:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:13,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:36:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:13,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:36:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:13,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:36:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:13,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 18:36:13,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:13,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 18:36:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:13,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 18:36:13,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:13,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 18:36:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:13,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 18:36:13,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:13,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 18:36:13,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:13,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-12-13 18:36:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:13,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 18:36:13,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:13,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:36:13,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:13,080 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 18:36:13,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:36:13,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440451839] [2022-12-13 18:36:13,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440451839] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:36:13,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:36:13,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:36:13,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029135967] [2022-12-13 18:36:13,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:36:13,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:36:13,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:36:13,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:36:13,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:36:13,082 INFO L87 Difference]: Start difference. First operand 63013 states and 107379 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 18:36:20,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:36:20,036 INFO L93 Difference]: Finished difference Result 118238 states and 205151 transitions. [2022-12-13 18:36:20,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 18:36:20,036 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 153 [2022-12-13 18:36:20,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:36:20,361 INFO L225 Difference]: With dead ends: 118238 [2022-12-13 18:36:20,361 INFO L226 Difference]: Without dead ends: 118060 [2022-12-13 18:36:20,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 18:36:20,400 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 1428 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 607 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1446 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 2182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 607 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:36:20,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1446 Valid, 1003 Invalid, 2182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [607 Valid, 1575 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 18:36:20,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118060 states. [2022-12-13 18:36:26,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118060 to 117886. [2022-12-13 18:36:26,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117886 states, 99255 states have (on average 1.6206034960455393) internal successors, (160853), 99263 states have internal predecessors, (160853), 18604 states have call successors, (18604), 22 states have call predecessors, (18604), 26 states have return successors, (20795), 18602 states have call predecessors, (20795), 18603 states have call successors, (20795) [2022-12-13 18:36:27,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117886 states to 117886 states and 200252 transitions. [2022-12-13 18:36:27,073 INFO L78 Accepts]: Start accepts. Automaton has 117886 states and 200252 transitions. Word has length 153 [2022-12-13 18:36:27,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:36:27,073 INFO L495 AbstractCegarLoop]: Abstraction has 117886 states and 200252 transitions. [2022-12-13 18:36:27,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 18:36:27,073 INFO L276 IsEmpty]: Start isEmpty. Operand 117886 states and 200252 transitions. [2022-12-13 18:36:27,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-12-13 18:36:27,129 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:36:27,129 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:36:27,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 18:36:27,130 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:36:27,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:36:27,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1941261972, now seen corresponding path program 1 times [2022-12-13 18:36:27,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:36:27,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762206036] [2022-12-13 18:36:27,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:36:27,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:36:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:27,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:36:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:27,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:36:27,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:27,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:36:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:27,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:36:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:27,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:36:27,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:27,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:36:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:27,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 18:36:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:27,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 18:36:27,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:27,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 18:36:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:27,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 18:36:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:27,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 18:36:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:27,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 18:36:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:27,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 18:36:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:27,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 18:36:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:27,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:36:27,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:27,392 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 18:36:27,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:36:27,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762206036] [2022-12-13 18:36:27,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762206036] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:36:27,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620529933] [2022-12-13 18:36:27,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:36:27,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:36:27,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:36:27,394 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:36:27,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 18:36:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:27,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 1250 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 18:36:27,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:36:27,830 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 18:36:27,830 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:36:27,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620529933] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:36:27,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 18:36:27,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 26 [2022-12-13 18:36:27,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163459593] [2022-12-13 18:36:27,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:36:27,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 18:36:27,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:36:27,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 18:36:27,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2022-12-13 18:36:27,831 INFO L87 Difference]: Start difference. First operand 117886 states and 200252 transitions. Second operand has 12 states, 11 states have (on average 10.454545454545455) internal successors, (115), 9 states have internal predecessors, (115), 5 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2022-12-13 18:36:40,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:36:40,058 INFO L93 Difference]: Finished difference Result 234960 states and 404578 transitions. [2022-12-13 18:36:40,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 18:36:40,059 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.454545454545455) internal successors, (115), 9 states have internal predecessors, (115), 5 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) Word has length 154 [2022-12-13 18:36:40,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:36:40,822 INFO L225 Difference]: With dead ends: 234960 [2022-12-13 18:36:40,822 INFO L226 Difference]: Without dead ends: 234788 [2022-12-13 18:36:40,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=166, Invalid=1166, Unknown=0, NotChecked=0, Total=1332 [2022-12-13 18:36:40,895 INFO L413 NwaCegarLoop]: 832 mSDtfsCounter, 1055 mSDsluCounter, 5726 mSDsCounter, 0 mSdLazyCounter, 1622 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 6558 SdHoareTripleChecker+Invalid, 1817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 1622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 18:36:40,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 6558 Invalid, 1817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 1622 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 18:36:41,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234788 states. [2022-12-13 18:36:54,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234788 to 234739. [2022-12-13 18:36:55,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234739 states, 197703 states have (on average 1.6211640693363276) internal successors, (320509), 197611 states have internal predecessors, (320509), 36971 states have call successors, (36971), 57 states have call predecessors, (36971), 64 states have return successors, (44638), 37078 states have call predecessors, (44638), 36968 states have call successors, (44638) [2022-12-13 18:36:55,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234739 states to 234739 states and 402118 transitions. [2022-12-13 18:36:55,751 INFO L78 Accepts]: Start accepts. Automaton has 234739 states and 402118 transitions. Word has length 154 [2022-12-13 18:36:55,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:36:55,751 INFO L495 AbstractCegarLoop]: Abstraction has 234739 states and 402118 transitions. [2022-12-13 18:36:55,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.454545454545455) internal successors, (115), 9 states have internal predecessors, (115), 5 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2022-12-13 18:36:55,751 INFO L276 IsEmpty]: Start isEmpty. Operand 234739 states and 402118 transitions. [2022-12-13 18:36:55,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-12-13 18:36:55,880 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:36:55,880 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:36:55,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 18:36:56,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:36:56,082 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:36:56,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:36:56,083 INFO L85 PathProgramCache]: Analyzing trace with hash -567020711, now seen corresponding path program 1 times [2022-12-13 18:36:56,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:36:56,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169198255] [2022-12-13 18:36:56,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:36:56,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:36:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:56,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:36:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:56,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:36:56,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:56,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:36:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:56,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:36:56,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:56,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:36:56,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:56,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:36:56,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:56,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 18:36:56,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:56,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 18:36:56,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:56,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 18:36:56,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:56,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 18:36:56,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:56,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 18:36:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:56,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:36:56,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:56,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 18:36:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:56,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 18:36:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:56,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:36:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:36:56,272 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 18:36:56,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:36:56,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169198255] [2022-12-13 18:36:56,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169198255] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:36:56,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:36:56,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-13 18:36:56,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204589339] [2022-12-13 18:36:56,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:36:56,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 18:36:56,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:36:56,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 18:36:56,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-12-13 18:36:56,274 INFO L87 Difference]: Start difference. First operand 234739 states and 402118 transitions. Second operand has 14 states, 14 states have (on average 7.357142857142857) internal successors, (103), 7 states have internal predecessors, (103), 6 states have call successors, (18), 8 states have call predecessors, (18), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2022-12-13 18:37:12,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:37:12,551 INFO L93 Difference]: Finished difference Result 237343 states and 412834 transitions. [2022-12-13 18:37:12,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-13 18:37:12,552 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.357142857142857) internal successors, (103), 7 states have internal predecessors, (103), 6 states have call successors, (18), 8 states have call predecessors, (18), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 155 [2022-12-13 18:37:12,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:37:13,283 INFO L225 Difference]: With dead ends: 237343 [2022-12-13 18:37:13,283 INFO L226 Difference]: Without dead ends: 236732 [2022-12-13 18:37:13,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=331, Invalid=1229, Unknown=0, NotChecked=0, Total=1560 [2022-12-13 18:37:13,356 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 3041 mSDsluCounter, 1812 mSDsCounter, 0 mSdLazyCounter, 5852 mSolverCounterSat, 1584 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3059 SdHoareTripleChecker+Valid, 2018 SdHoareTripleChecker+Invalid, 7436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1584 IncrementalHoareTripleChecker+Valid, 5852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-13 18:37:13,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3059 Valid, 2018 Invalid, 7436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1584 Valid, 5852 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-13 18:37:13,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236732 states. [2022-12-13 18:37:28,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236732 to 235144. [2022-12-13 18:37:28,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235144 states, 198000 states have (on average 1.6207575757575758) internal successors, (320910), 197920 states have internal predecessors, (320910), 37071 states have call successors, (37071), 63 states have call predecessors, (37071), 72 states have return successors, (44762), 37176 states have call predecessors, (44762), 37062 states have call successors, (44762) [2022-12-13 18:37:29,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235144 states to 235144 states and 402743 transitions. [2022-12-13 18:37:29,302 INFO L78 Accepts]: Start accepts. Automaton has 235144 states and 402743 transitions. Word has length 155 [2022-12-13 18:37:29,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:37:29,302 INFO L495 AbstractCegarLoop]: Abstraction has 235144 states and 402743 transitions. [2022-12-13 18:37:29,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.357142857142857) internal successors, (103), 7 states have internal predecessors, (103), 6 states have call successors, (18), 8 states have call predecessors, (18), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2022-12-13 18:37:29,302 INFO L276 IsEmpty]: Start isEmpty. Operand 235144 states and 402743 transitions. [2022-12-13 18:37:29,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-12-13 18:37:29,428 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:37:29,428 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:37:29,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 18:37:29,428 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:37:29,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:37:29,428 INFO L85 PathProgramCache]: Analyzing trace with hash -785287647, now seen corresponding path program 1 times [2022-12-13 18:37:29,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:37:29,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534461908] [2022-12-13 18:37:29,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:37:29,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:37:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:37:29,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:37:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:37:29,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:37:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:37:29,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:37:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:37:29,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:37:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:37:29,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:37:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:37:29,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:37:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:37:29,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 18:37:29,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:37:29,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 18:37:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:37:29,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 18:37:29,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:37:29,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 18:37:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:37:29,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 18:37:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:37:29,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 18:37:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:37:29,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:37:29,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:37:29,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 18:37:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:37:29,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 18:37:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:37:29,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 18:37:29,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:37:29,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-12-13 18:37:29,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:37:29,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:37:29,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:37:29,566 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-13 18:37:29,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:37:29,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534461908] [2022-12-13 18:37:29,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534461908] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:37:29,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:37:29,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 18:37:29,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042781618] [2022-12-13 18:37:29,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:37:29,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 18:37:29,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:37:29,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 18:37:29,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 18:37:29,568 INFO L87 Difference]: Start difference. First operand 235144 states and 402743 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 5 states have internal predecessors, (112), 3 states have call successors, (21), 7 states have call predecessors, (21), 2 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-13 18:37:57,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:37:57,868 INFO L93 Difference]: Finished difference Result 455217 states and 795034 transitions. [2022-12-13 18:37:57,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-13 18:37:57,868 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 5 states have internal predecessors, (112), 3 states have call successors, (21), 7 states have call predecessors, (21), 2 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) Word has length 175 [2022-12-13 18:37:57,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:37:59,415 INFO L225 Difference]: With dead ends: 455217 [2022-12-13 18:37:59,415 INFO L226 Difference]: Without dead ends: 454240 [2022-12-13 18:37:59,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=255, Invalid=737, Unknown=0, NotChecked=0, Total=992 [2022-12-13 18:37:59,560 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 2948 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 3895 mSolverCounterSat, 1185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2965 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 5080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1185 IncrementalHoareTripleChecker+Valid, 3895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-13 18:37:59,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2965 Valid, 1737 Invalid, 5080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1185 Valid, 3895 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-13 18:37:59,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454240 states. [2022-12-13 18:38:30,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454240 to 452382. [2022-12-13 18:38:30,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452382 states, 380942 states have (on average 1.6237878732195452) internal successors, (618569), 380739 states have internal predecessors, (618569), 71298 states have call successors, (71298), 123 states have call predecessors, (71298), 141 states have return successors, (86220), 71551 states have call predecessors, (86220), 71280 states have call successors, (86220) [2022-12-13 18:38:32,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452382 states to 452382 states and 776087 transitions. [2022-12-13 18:38:32,182 INFO L78 Accepts]: Start accepts. Automaton has 452382 states and 776087 transitions. Word has length 175 [2022-12-13 18:38:32,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:38:32,182 INFO L495 AbstractCegarLoop]: Abstraction has 452382 states and 776087 transitions. [2022-12-13 18:38:32,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 5 states have internal predecessors, (112), 3 states have call successors, (21), 7 states have call predecessors, (21), 2 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-13 18:38:32,183 INFO L276 IsEmpty]: Start isEmpty. Operand 452382 states and 776087 transitions. [2022-12-13 18:38:32,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-12-13 18:38:32,352 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:38:32,352 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:38:32,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 18:38:32,352 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:38:32,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:38:32,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1708366770, now seen corresponding path program 1 times [2022-12-13 18:38:32,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:38:32,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070544002] [2022-12-13 18:38:32,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:38:32,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:38:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:38:32,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:38:32,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:38:32,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:38:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:38:32,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:38:32,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:38:32,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:38:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:38:32,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:38:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:38:32,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:38:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:38:32,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 18:38:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:38:32,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 18:38:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:38:32,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 18:38:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:38:32,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 18:38:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:38:32,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 18:38:32,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:38:32,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:38:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:38:32,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 18:38:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:38:32,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 18:38:32,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:38:32,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:38:32,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:38:32,558 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 18:38:32,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:38:32,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070544002] [2022-12-13 18:38:32,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070544002] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:38:32,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688422728] [2022-12-13 18:38:32,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:38:32,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:38:32,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:38:32,559 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:38:32,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 18:38:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:38:32,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 1251 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 18:38:32,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:38:32,795 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 18:38:32,796 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:38:32,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688422728] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:38:32,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 18:38:32,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-12-13 18:38:32,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235927015] [2022-12-13 18:38:32,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:38:32,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:38:32,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:38:32,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:38:32,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 18:38:32,797 INFO L87 Difference]: Start difference. First operand 452382 states and 776087 transitions. Second operand has 5 states, 4 states have (on average 27.25) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 18:38:58,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:38:58,067 INFO L93 Difference]: Finished difference Result 453582 states and 777874 transitions. [2022-12-13 18:38:58,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 18:38:58,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 27.25) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 155 [2022-12-13 18:38:58,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:38:59,536 INFO L225 Difference]: With dead ends: 453582 [2022-12-13 18:38:59,536 INFO L226 Difference]: Without dead ends: 452390 [2022-12-13 18:38:59,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-12-13 18:38:59,674 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 7 mSDsluCounter, 1652 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2210 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:38:59,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2210 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:38:59,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452390 states. [2022-12-13 18:39:29,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452390 to 452386. [2022-12-13 18:39:30,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452386 states, 380944 states have (on average 1.6237845982611618) internal successors, (618571), 380743 states have internal predecessors, (618571), 71298 states have call successors, (71298), 123 states have call predecessors, (71298), 143 states have return successors, (86230), 71551 states have call predecessors, (86230), 71280 states have call successors, (86230) [2022-12-13 18:39:31,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452386 states to 452386 states and 776099 transitions. [2022-12-13 18:39:31,859 INFO L78 Accepts]: Start accepts. Automaton has 452386 states and 776099 transitions. Word has length 155 [2022-12-13 18:39:31,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:39:31,859 INFO L495 AbstractCegarLoop]: Abstraction has 452386 states and 776099 transitions. [2022-12-13 18:39:31,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 27.25) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 18:39:31,859 INFO L276 IsEmpty]: Start isEmpty. Operand 452386 states and 776099 transitions. [2022-12-13 18:39:32,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-12-13 18:39:32,147 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:39:32,147 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:39:32,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 18:39:32,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:39:32,348 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:39:32,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:39:32,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1179133270, now seen corresponding path program 1 times [2022-12-13 18:39:32,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:39:32,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877270370] [2022-12-13 18:39:32,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:39:32,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:39:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:32,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:39:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:32,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:39:32,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:32,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:39:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:32,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:39:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:32,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:39:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:32,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:39:32,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:32,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 18:39:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:32,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 18:39:32,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:32,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 18:39:32,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:32,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 18:39:32,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:32,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 18:39:32,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:32,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:39:32,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:32,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 18:39:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:32,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-12-13 18:39:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:32,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:39:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:32,484 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 18:39:32,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:39:32,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877270370] [2022-12-13 18:39:32,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877270370] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:39:32,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541091202] [2022-12-13 18:39:32,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:39:32,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:39:32,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:39:32,486 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:39:32,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 18:39:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:32,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 18:39:32,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:39:32,810 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-13 18:39:32,810 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:39:32,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541091202] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:39:32,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 18:39:32,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2022-12-13 18:39:32,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370406059] [2022-12-13 18:39:32,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:39:32,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:39:32,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:39:32,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:39:32,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-12-13 18:39:32,812 INFO L87 Difference]: Start difference. First operand 452386 states and 776099 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 18:40:02,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:40:02,669 INFO L93 Difference]: Finished difference Result 455736 states and 781145 transitions. [2022-12-13 18:40:02,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 18:40:02,670 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 156 [2022-12-13 18:40:02,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:40:04,255 INFO L225 Difference]: With dead ends: 455736 [2022-12-13 18:40:04,255 INFO L226 Difference]: Without dead ends: 454606 [2022-12-13 18:40:04,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2022-12-13 18:40:04,383 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 819 mSDsluCounter, 1854 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 2384 SdHoareTripleChecker+Invalid, 1960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 18:40:04,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 2384 Invalid, 1960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 18:40:04,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454606 states. [2022-12-13 18:40:36,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454606 to 453976. [2022-12-13 18:40:36,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453976 states, 382166 states have (on average 1.623019839546166) internal successors, (620263), 382000 states have internal predecessors, (620263), 71590 states have call successors, (71590), 177 states have call predecessors, (71590), 219 states have return successors, (86641), 71854 states have call predecessors, (86641), 71560 states have call successors, (86641) [2022-12-13 18:40:38,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453976 states to 453976 states and 778494 transitions. [2022-12-13 18:40:38,586 INFO L78 Accepts]: Start accepts. Automaton has 453976 states and 778494 transitions. Word has length 156 [2022-12-13 18:40:38,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:40:38,587 INFO L495 AbstractCegarLoop]: Abstraction has 453976 states and 778494 transitions. [2022-12-13 18:40:38,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 18:40:38,587 INFO L276 IsEmpty]: Start isEmpty. Operand 453976 states and 778494 transitions. [2022-12-13 18:40:38,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-12-13 18:40:38,763 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:40:38,763 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:40:38,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 18:40:38,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-12-13 18:40:38,964 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:40:38,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:40:38,965 INFO L85 PathProgramCache]: Analyzing trace with hash -841841484, now seen corresponding path program 1 times [2022-12-13 18:40:38,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:40:38,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643587494] [2022-12-13 18:40:38,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:40:38,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:40:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:39,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:40:39,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:39,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:40:39,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:39,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:40:39,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:39,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:40:39,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:39,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:40:39,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:39,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:40:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:39,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 18:40:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:39,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 18:40:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:39,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 18:40:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:39,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 18:40:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:39,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 18:40:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:39,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 18:40:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:39,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 18:40:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:39,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 18:40:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:39,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 18:40:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:39,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-12-13 18:40:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:39,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-12-13 18:40:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:39,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:40:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:39,148 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-13 18:40:39,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:40:39,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643587494] [2022-12-13 18:40:39,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643587494] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:40:39,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:40:39,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-13 18:40:39,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238972313] [2022-12-13 18:40:39,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:40:39,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 18:40:39,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:40:39,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 18:40:39,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-12-13 18:40:39,149 INFO L87 Difference]: Start difference. First operand 453976 states and 778494 transitions. Second operand has 13 states, 12 states have (on average 9.416666666666666) internal successors, (113), 7 states have internal predecessors, (113), 5 states have call successors, (21), 8 states have call predecessors, (21), 2 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2022-12-13 18:41:09,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:41:09,016 INFO L93 Difference]: Finished difference Result 460888 states and 801547 transitions. [2022-12-13 18:41:09,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 18:41:09,017 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.416666666666666) internal successors, (113), 7 states have internal predecessors, (113), 5 states have call successors, (21), 8 states have call predecessors, (21), 2 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) Word has length 176 [2022-12-13 18:41:09,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:41:10,672 INFO L225 Difference]: With dead ends: 460888 [2022-12-13 18:41:10,672 INFO L226 Difference]: Without dead ends: 457316 [2022-12-13 18:41:10,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=222, Invalid=708, Unknown=0, NotChecked=0, Total=930 [2022-12-13 18:41:10,815 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1872 mSDsluCounter, 1638 mSDsCounter, 0 mSdLazyCounter, 4285 mSolverCounterSat, 878 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1890 SdHoareTripleChecker+Valid, 1844 SdHoareTripleChecker+Invalid, 5163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 878 IncrementalHoareTripleChecker+Valid, 4285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:41:10,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1890 Valid, 1844 Invalid, 5163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [878 Valid, 4285 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-13 18:41:11,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457316 states. [2022-12-13 18:41:41,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457316 to 453857. [2022-12-13 18:41:42,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453857 states, 382091 states have (on average 1.6230714672682685) internal successors, (620161), 381931 states have internal predecessors, (620161), 71539 states have call successors, (71539), 176 states have call predecessors, (71539), 226 states have return successors, (86558), 71803 states have call predecessors, (86558), 71509 states have call successors, (86558) [2022-12-13 18:41:43,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453857 states to 453857 states and 778258 transitions. [2022-12-13 18:41:43,867 INFO L78 Accepts]: Start accepts. Automaton has 453857 states and 778258 transitions. Word has length 176 [2022-12-13 18:41:43,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:41:43,867 INFO L495 AbstractCegarLoop]: Abstraction has 453857 states and 778258 transitions. [2022-12-13 18:41:43,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.416666666666666) internal successors, (113), 7 states have internal predecessors, (113), 5 states have call successors, (21), 8 states have call predecessors, (21), 2 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2022-12-13 18:41:43,868 INFO L276 IsEmpty]: Start isEmpty. Operand 453857 states and 778258 transitions. [2022-12-13 18:41:44,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-12-13 18:41:44,159 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:41:44,159 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:41:44,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 18:41:44,159 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:41:44,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:41:44,160 INFO L85 PathProgramCache]: Analyzing trace with hash 142862807, now seen corresponding path program 1 times [2022-12-13 18:41:44,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:41:44,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829739942] [2022-12-13 18:41:44,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:41:44,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:41:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:41:44,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:41:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:41:44,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:41:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:41:44,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:41:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:41:44,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:41:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:41:44,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:41:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:41:44,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:41:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:41:44,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 18:41:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:41:44,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 18:41:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:41:44,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 18:41:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:41:44,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 18:41:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:41:44,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 18:41:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:41:44,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:41:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:41:44,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 18:41:44,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:41:44,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 18:41:44,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:41:44,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:41:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:41:44,252 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 18:41:44,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:41:44,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829739942] [2022-12-13 18:41:44,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829739942] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:41:44,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191924075] [2022-12-13 18:41:44,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:41:44,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:41:44,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:41:44,253 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:41:44,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 18:41:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:41:44,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 1249 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-13 18:41:44,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:41:44,565 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-13 18:41:44,565 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:41:44,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191924075] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:41:44,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 18:41:44,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 16 [2022-12-13 18:41:44,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884613579] [2022-12-13 18:41:44,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:41:44,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 18:41:44,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:41:44,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 18:41:44,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2022-12-13 18:41:44,567 INFO L87 Difference]: Start difference. First operand 453857 states and 778258 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 7 states have internal predecessors, (110), 2 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 18:42:11,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:42:11,558 INFO L93 Difference]: Finished difference Result 456449 states and 782051 transitions. [2022-12-13 18:42:11,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 18:42:11,559 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 7 states have internal predecessors, (110), 2 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 157 [2022-12-13 18:42:11,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:42:13,100 INFO L225 Difference]: With dead ends: 456449 [2022-12-13 18:42:13,100 INFO L226 Difference]: Without dead ends: 454117 [2022-12-13 18:42:13,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-12-13 18:42:13,240 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 956 mSDsluCounter, 2637 mSDsCounter, 0 mSdLazyCounter, 2362 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 3142 SdHoareTripleChecker+Invalid, 2592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 2362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 18:42:13,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 3142 Invalid, 2592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 2362 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 18:42:13,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454117 states. [2022-12-13 18:42:44,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454117 to 453857. [2022-12-13 18:42:44,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453857 states, 382091 states have (on average 1.6230086550062681) internal successors, (620137), 381931 states have internal predecessors, (620137), 71539 states have call successors, (71539), 176 states have call predecessors, (71539), 226 states have return successors, (86558), 71803 states have call predecessors, (86558), 71509 states have call successors, (86558) [2022-12-13 18:42:46,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453857 states to 453857 states and 778234 transitions. [2022-12-13 18:42:46,307 INFO L78 Accepts]: Start accepts. Automaton has 453857 states and 778234 transitions. Word has length 157 [2022-12-13 18:42:46,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:42:46,307 INFO L495 AbstractCegarLoop]: Abstraction has 453857 states and 778234 transitions. [2022-12-13 18:42:46,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 7 states have internal predecessors, (110), 2 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 18:42:46,308 INFO L276 IsEmpty]: Start isEmpty. Operand 453857 states and 778234 transitions. [2022-12-13 18:42:46,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-12-13 18:42:46,649 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:42:46,649 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:42:46,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 18:42:46,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:42:46,851 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:42:46,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:42:46,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1419321021, now seen corresponding path program 1 times [2022-12-13 18:42:46,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:42:46,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132818874] [2022-12-13 18:42:46,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:42:46,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:42:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:46,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:42:46,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:46,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:42:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:46,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:42:46,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:46,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:42:46,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:46,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:42:46,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:46,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:42:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:47,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 18:42:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:47,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 18:42:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:47,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 18:42:47,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:47,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 18:42:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:47,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 18:42:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:47,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:42:47,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:47,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 18:42:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:47,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-12-13 18:42:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:47,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:42:47,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:47,037 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 18:42:47,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:42:47,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132818874] [2022-12-13 18:42:47,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132818874] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:42:47,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085907459] [2022-12-13 18:42:47,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:42:47,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:42:47,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:42:47,039 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:42:47,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 18:42:47,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:47,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 1249 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 18:42:47,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:42:47,340 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-12-13 18:42:47,340 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:42:47,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085907459] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:42:47,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 18:42:47,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [9] total 20 [2022-12-13 18:42:47,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460239259] [2022-12-13 18:42:47,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:42:47,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 18:42:47,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:42:47,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 18:42:47,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=342, Unknown=0, NotChecked=0, Total=380 [2022-12-13 18:42:47,342 INFO L87 Difference]: Start difference. First operand 453857 states and 778234 transitions. Second operand has 13 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 8 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) [2022-12-13 18:43:14,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:43:14,094 INFO L93 Difference]: Finished difference Result 457276 states and 783411 transitions. [2022-12-13 18:43:14,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 18:43:14,095 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 8 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) Word has length 156 [2022-12-13 18:43:14,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:43:15,655 INFO L225 Difference]: With dead ends: 457276 [2022-12-13 18:43:15,655 INFO L226 Difference]: Without dead ends: 453879 [2022-12-13 18:43:15,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=628, Unknown=0, NotChecked=0, Total=702 [2022-12-13 18:43:15,796 INFO L413 NwaCegarLoop]: 565 mSDtfsCounter, 311 mSDsluCounter, 5997 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 6562 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 18:43:15,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 6562 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 18:43:16,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453879 states. [2022-12-13 18:43:47,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453879 to 453875. [2022-12-13 18:43:47,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453875 states, 382100 states have (on average 1.622993980633342) internal successors, (620146), 381949 states have internal predecessors, (620146), 71539 states have call successors, (71539), 176 states have call predecessors, (71539), 235 states have return successors, (86619), 71803 states have call predecessors, (86619), 71509 states have call successors, (86619) [2022-12-13 18:43:49,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453875 states to 453875 states and 778304 transitions. [2022-12-13 18:43:49,223 INFO L78 Accepts]: Start accepts. Automaton has 453875 states and 778304 transitions. Word has length 156 [2022-12-13 18:43:49,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:43:49,224 INFO L495 AbstractCegarLoop]: Abstraction has 453875 states and 778304 transitions. [2022-12-13 18:43:49,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 8 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) [2022-12-13 18:43:49,224 INFO L276 IsEmpty]: Start isEmpty. Operand 453875 states and 778304 transitions. [2022-12-13 18:43:49,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-12-13 18:43:49,448 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:43:49,448 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:43:49,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 18:43:49,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-12-13 18:43:49,650 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:43:49,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:43:49,651 INFO L85 PathProgramCache]: Analyzing trace with hash -764355906, now seen corresponding path program 1 times [2022-12-13 18:43:49,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:43:49,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156617071] [2022-12-13 18:43:49,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:43:49,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:43:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:43:49,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:43:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:43:49,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:43:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:43:49,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:43:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:43:49,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:43:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:43:49,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:43:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:43:49,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:43:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:43:49,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 18:43:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:43:49,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 18:43:49,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:43:49,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 18:43:49,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:43:49,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 18:43:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:43:49,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 18:43:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:43:49,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:43:49,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:43:49,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 18:43:49,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:43:49,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-12-13 18:43:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:43:49,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:43:49,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:43:49,807 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 18:43:49,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:43:49,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156617071] [2022-12-13 18:43:49,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156617071] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:43:49,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416845789] [2022-12-13 18:43:49,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:43:49,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:43:49,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:43:49,808 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:43:49,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 18:43:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:43:50,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 1248 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 18:43:50,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:43:50,039 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-13 18:43:50,039 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:43:50,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416845789] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:43:50,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 18:43:50,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-12-13 18:43:50,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481213135] [2022-12-13 18:43:50,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:43:50,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:43:50,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:43:50,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:43:50,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-12-13 18:43:50,041 INFO L87 Difference]: Start difference. First operand 453875 states and 778304 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 18:44:17,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:44:17,281 INFO L93 Difference]: Finished difference Result 458477 states and 785295 transitions. [2022-12-13 18:44:17,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 18:44:17,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 156 [2022-12-13 18:44:17,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:44:18,836 INFO L225 Difference]: With dead ends: 458477 [2022-12-13 18:44:18,837 INFO L226 Difference]: Without dead ends: 455278 [2022-12-13 18:44:18,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-12-13 18:44:18,984 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 58 mSDsluCounter, 1865 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 2515 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:44:18,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 2515 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:44:19,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455278 states. [2022-12-13 18:44:50,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455278 to 454130. [2022-12-13 18:44:51,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454130 states, 382313 states have (on average 1.622741052488406) internal successors, (620395), 382156 states have internal predecessors, (620395), 71574 states have call successors, (71574), 176 states have call predecessors, (71574), 242 states have return successors, (86721), 71855 states have call predecessors, (86721), 71544 states have call successors, (86721) [2022-12-13 18:44:52,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454130 states to 454130 states and 778690 transitions. [2022-12-13 18:44:52,865 INFO L78 Accepts]: Start accepts. Automaton has 454130 states and 778690 transitions. Word has length 156 [2022-12-13 18:44:52,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:44:52,865 INFO L495 AbstractCegarLoop]: Abstraction has 454130 states and 778690 transitions. [2022-12-13 18:44:52,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 18:44:52,866 INFO L276 IsEmpty]: Start isEmpty. Operand 454130 states and 778690 transitions. [2022-12-13 18:44:53,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-12-13 18:44:53,039 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:44:53,039 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:44:53,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-13 18:44:53,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-12-13 18:44:53,242 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:44:53,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:44:53,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1045301257, now seen corresponding path program 1 times [2022-12-13 18:44:53,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:44:53,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638254078] [2022-12-13 18:44:53,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:44:53,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:44:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:53,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:44:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:53,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:44:53,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:53,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:44:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:53,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 18:44:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:53,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 18:44:53,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:53,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:44:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:53,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 18:44:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:53,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 18:44:53,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:53,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 18:44:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:53,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 18:44:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:53,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 18:44:53,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:53,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:44:53,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:53,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 18:44:53,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:53,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-12-13 18:44:53,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:53,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:44:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:53,460 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 18:44:53,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:44:53,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638254078] [2022-12-13 18:44:53,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638254078] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:44:53,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405822624] [2022-12-13 18:44:53,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:44:53,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:44:53,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:44:53,462 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:44:53,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c1531a-b433-4554-8099-979caf27f566/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 18:44:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:44:53,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 1251 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 18:44:53,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:44:53,716 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 18:44:53,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:44:53,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405822624] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:44:53,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 18:44:53,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [15] total 20 [2022-12-13 18:44:53,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565736305] [2022-12-13 18:44:53,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:44:53,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:44:53,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:44:53,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:44:53,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2022-12-13 18:44:53,718 INFO L87 Difference]: Start difference. First operand 454130 states and 778690 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 6 states have internal predecessors, (110), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 18:45:20,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:45:20,089 INFO L93 Difference]: Finished difference Result 458523 states and 785285 transitions. [2022-12-13 18:45:20,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 18:45:20,090 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 6 states have internal predecessors, (110), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 158 [2022-12-13 18:45:20,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:45:21,646 INFO L225 Difference]: With dead ends: 458523 [2022-12-13 18:45:21,646 INFO L226 Difference]: Without dead ends: 455223 [2022-12-13 18:45:21,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=415, Unknown=0, NotChecked=0, Total=462 [2022-12-13 18:45:21,779 INFO L413 NwaCegarLoop]: 644 mSDtfsCounter, 121 mSDsluCounter, 3059 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 3703 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:45:21,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 3703 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:45:22,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455223 states.