./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product14.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R --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 db5154a0e253326ecbc6009dd1b2954eaac96f88a97328f2e835902c9850ef53 --- 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-38b53e6 [2022-11-25 15:34:46,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:34:46,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:34:46,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:34:46,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:34:46,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:34:46,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:34:46,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:34:46,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:34:46,242 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:34:46,243 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:34:46,245 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:34:46,246 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:34:46,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:34:46,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:34:46,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:34:46,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:34:46,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:34:46,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:34:46,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:34:46,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:34:46,265 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:34:46,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:34:46,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:34:46,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:34:46,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:34:46,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:34:46,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:34:46,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:34:46,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:34:46,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:34:46,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:34:46,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:34:46,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:34:46,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:34:46,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:34:46,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:34:46,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:34:46,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:34:46,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:34:46,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:34:46,292 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 15:34:46,329 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:34:46,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:34:46,330 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:34:46,331 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:34:46,331 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:34:46,332 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:34:46,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:34:46,333 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:34:46,333 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:34:46,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:34:46,334 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:34:46,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:34:46,335 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:34:46,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:34:46,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:34:46,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:34:46,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:34:46,336 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:34:46,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:34:46,337 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:34:46,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:34:46,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:34:46,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:34:46,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:34:46,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:34:46,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:34:46,339 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:34:46,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:34:46,339 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:34:46,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:34:46,340 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:34:46,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:34:46,341 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:34:46,341 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:34:46,341 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_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db5154a0e253326ecbc6009dd1b2954eaac96f88a97328f2e835902c9850ef53 [2022-11-25 15:34:46,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:34:46,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:34:46,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:34:46,697 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:34:46,697 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:34:46,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/product-lines/email_spec8_product14.cil.c [2022-11-25 15:34:49,702 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:34:50,083 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:34:50,090 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/sv-benchmarks/c/product-lines/email_spec8_product14.cil.c [2022-11-25 15:34:50,117 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/data/c5e7415dd/98103b61f4a74c0ba0942f70a5507821/FLAG1d2b0abb9 [2022-11-25 15:34:50,136 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/data/c5e7415dd/98103b61f4a74c0ba0942f70a5507821 [2022-11-25 15:34:50,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:34:50,139 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:34:50,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:34:50,141 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:34:50,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:34:50,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:34:50" (1/1) ... [2022-11-25 15:34:50,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bb5bb7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:50, skipping insertion in model container [2022-11-25 15:34:50,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:34:50" (1/1) ... [2022-11-25 15:34:50,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:34:50,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:34:50,591 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:34:50,605 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:34:50,609 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:34:50,617 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:34:50,629 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_4e676915-ee0e-4f7b-ac10-12effeedd6ed/sv-benchmarks/c/product-lines/email_spec8_product14.cil.c[17564,17577] [2022-11-25 15:34:50,670 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:34:50,673 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:34:50,819 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:34:50,821 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:34:50,824 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:34:50,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:34:50,844 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:34:50,875 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:34:50,877 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:34:50,878 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:34:50,888 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:34:50,893 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_4e676915-ee0e-4f7b-ac10-12effeedd6ed/sv-benchmarks/c/product-lines/email_spec8_product14.cil.c[17564,17577] [2022-11-25 15:34:50,898 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:34:50,899 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:34:50,945 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:34:50,946 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:34:50,948 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:34:50,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:34:51,014 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:34:51,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:51 WrapperNode [2022-11-25 15:34:51,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:34:51,016 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:34:51,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:34:51,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:34:51,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:51" (1/1) ... [2022-11-25 15:34:51,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:51" (1/1) ... [2022-11-25 15:34:51,132 INFO L138 Inliner]: procedures = 126, calls = 210, calls flagged for inlining = 51, calls inlined = 43, statements flattened = 905 [2022-11-25 15:34:51,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:34:51,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:34:51,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:34:51,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:34:51,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:51" (1/1) ... [2022-11-25 15:34:51,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:51" (1/1) ... [2022-11-25 15:34:51,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:51" (1/1) ... [2022-11-25 15:34:51,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:51" (1/1) ... [2022-11-25 15:34:51,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:51" (1/1) ... [2022-11-25 15:34:51,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:51" (1/1) ... [2022-11-25 15:34:51,211 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:51" (1/1) ... [2022-11-25 15:34:51,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:51" (1/1) ... [2022-11-25 15:34:51,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:34:51,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:34:51,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:34:51,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:34:51,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:51" (1/1) ... [2022-11-25 15:34:51,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:34:51,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:34:51,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:34:51,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:34:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-25 15:34:51,328 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-25 15:34:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-25 15:34:51,328 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-25 15:34:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-25 15:34:51,329 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-25 15:34:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-25 15:34:51,329 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-25 15:34:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-25 15:34:51,329 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-25 15:34:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-25 15:34:51,329 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-25 15:34:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-25 15:34:51,330 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-25 15:34:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-25 15:34:51,330 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-25 15:34:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-25 15:34:51,330 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-25 15:34:51,331 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-25 15:34:51,331 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-25 15:34:51,331 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-25 15:34:51,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:34:51,331 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-25 15:34:51,331 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-25 15:34:51,332 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-25 15:34:51,332 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-25 15:34:51,332 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-25 15:34:51,332 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-25 15:34:51,332 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-25 15:34:51,332 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-25 15:34:51,333 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-11-25 15:34:51,333 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-11-25 15:34:51,333 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-25 15:34:51,333 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-25 15:34:51,333 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-25 15:34:51,333 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-25 15:34:51,333 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-25 15:34:51,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-25 15:34:51,334 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-25 15:34:51,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-25 15:34:51,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:34:51,334 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-25 15:34:51,334 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-25 15:34:51,335 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-25 15:34:51,335 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-25 15:34:51,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:34:51,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:34:51,550 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:34:51,553 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:34:52,620 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:34:52,641 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:34:52,647 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 15:34:52,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:34:52 BoogieIcfgContainer [2022-11-25 15:34:52,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:34:52,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:34:52,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:34:52,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:34:52,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:34:50" (1/3) ... [2022-11-25 15:34:52,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5abfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:34:52, skipping insertion in model container [2022-11-25 15:34:52,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:51" (2/3) ... [2022-11-25 15:34:52,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5abfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:34:52, skipping insertion in model container [2022-11-25 15:34:52,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:34:52" (3/3) ... [2022-11-25 15:34:52,665 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product14.cil.c [2022-11-25 15:34:52,683 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:34:52,683 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 15:34:52,740 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:34:52,746 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;@11ecdb9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:34:52,747 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 15:34:52,753 INFO L276 IsEmpty]: Start isEmpty. Operand has 343 states, 268 states have (on average 1.585820895522388) internal successors, (425), 273 states have internal predecessors, (425), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2022-11-25 15:34:52,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-25 15:34:52,775 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:34:52,776 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 15:34:52,777 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:34:52,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:34:52,783 INFO L85 PathProgramCache]: Analyzing trace with hash 363460128, now seen corresponding path program 1 times [2022-11-25 15:34:52,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:34:52,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338147633] [2022-11-25 15:34:52,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:52,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:34:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:53,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:34:53,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:53,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 15:34:53,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:53,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:34:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:53,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-25 15:34:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:53,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 15:34:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:53,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 15:34:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:53,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-25 15:34:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:53,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-25 15:34:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:53,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 15:34:53,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:53,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-25 15:34:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:53,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 15:34:53,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:53,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-25 15:34:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:53,717 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-25 15:34:53,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:34:53,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338147633] [2022-11-25 15:34:53,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338147633] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:34:53,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687459209] [2022-11-25 15:34:53,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:53,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:34:53,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:34:53,730 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:34:53,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 15:34:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:54,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 15:34:54,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:34:54,129 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 15:34:54,129 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:34:54,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687459209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:34:54,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:34:54,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-11-25 15:34:54,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816971837] [2022-11-25 15:34:54,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:34:54,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 15:34:54,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:34:54,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 15:34:54,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:34:54,199 INFO L87 Difference]: Start difference. First operand has 343 states, 268 states have (on average 1.585820895522388) internal successors, (425), 273 states have internal predecessors, (425), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:34:54,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:34:54,283 INFO L93 Difference]: Finished difference Result 498 states and 756 transitions. [2022-11-25 15:34:54,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 15:34:54,290 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2022-11-25 15:34:54,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:34:54,304 INFO L225 Difference]: With dead ends: 498 [2022-11-25 15:34:54,305 INFO L226 Difference]: Without dead ends: 336 [2022-11-25 15:34:54,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:34:54,322 INFO L413 NwaCegarLoop]: 525 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, 525 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 [2022-11-25 15:34:54,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:34:54,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-11-25 15:34:54,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2022-11-25 15:34:54,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 262 states have (on average 1.5801526717557253) internal successors, (414), 266 states have internal predecessors, (414), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2022-11-25 15:34:54,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 517 transitions. [2022-11-25 15:34:54,404 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 517 transitions. Word has length 98 [2022-11-25 15:34:54,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:34:54,406 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 517 transitions. [2022-11-25 15:34:54,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:34:54,406 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 517 transitions. [2022-11-25 15:34:54,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-25 15:34:54,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:34:54,412 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 15:34:54,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 15:34:54,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-25 15:34:54,619 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:34:54,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:34:54,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1382784013, now seen corresponding path program 1 times [2022-11-25 15:34:54,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:34:54,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430013663] [2022-11-25 15:34:54,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:54,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:34:54,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:54,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:34:54,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:54,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 15:34:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:54,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:34:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:54,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-25 15:34:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:54,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 15:34:54,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:54,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 15:34:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:54,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-25 15:34:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:54,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-25 15:34:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:54,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 15:34:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:54,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-25 15:34:54,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:54,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-25 15:34:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:54,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 15:34:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:54,982 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-25 15:34:54,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:34:54,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430013663] [2022-11-25 15:34:54,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430013663] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:34:54,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283288403] [2022-11-25 15:34:54,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:54,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:34:54,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:34:55,001 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:34:55,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 15:34:55,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:55,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:34:55,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:34:55,351 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 15:34:55,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:34:55,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283288403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:34:55,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:34:55,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-25 15:34:55,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369472525] [2022-11-25 15:34:55,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:34:55,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:34:55,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:34:55,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:34:55,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:34:55,354 INFO L87 Difference]: Start difference. First operand 336 states and 517 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:34:55,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:34:55,441 INFO L93 Difference]: Finished difference Result 488 states and 734 transitions. [2022-11-25 15:34:55,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:34:55,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 99 [2022-11-25 15:34:55,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:34:55,457 INFO L225 Difference]: With dead ends: 488 [2022-11-25 15:34:55,457 INFO L226 Difference]: Without dead ends: 339 [2022-11-25 15:34:55,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:34:55,460 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 1 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1028 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 [2022-11-25 15:34:55,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1028 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:34:55,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-11-25 15:34:55,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 338. [2022-11-25 15:34:55,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 264 states have (on average 1.5757575757575757) internal successors, (416), 268 states have internal predecessors, (416), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2022-11-25 15:34:55,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 519 transitions. [2022-11-25 15:34:55,523 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 519 transitions. Word has length 99 [2022-11-25 15:34:55,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:34:55,523 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 519 transitions. [2022-11-25 15:34:55,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:34:55,524 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 519 transitions. [2022-11-25 15:34:55,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-25 15:34:55,528 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:34:55,528 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 15:34:55,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 15:34:55,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:34:55,742 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:34:55,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:34:55,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1526113252, now seen corresponding path program 1 times [2022-11-25 15:34:55,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:34:55,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514995758] [2022-11-25 15:34:55,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:55,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:34:55,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:55,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:34:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:55,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 15:34:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:55,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:34:55,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:55,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-25 15:34:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:55,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 15:34:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:55,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 15:34:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:55,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-25 15:34:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:55,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-25 15:34:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:55,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 15:34:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:55,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 15:34:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:55,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-25 15:34:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:56,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-25 15:34:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:56,005 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 15:34:56,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:34:56,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514995758] [2022-11-25 15:34:56,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514995758] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:34:56,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426631871] [2022-11-25 15:34:56,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:56,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:34:56,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:34:56,008 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:34:56,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 15:34:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:56,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 1013 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:34:56,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:34:56,332 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 15:34:56,333 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:34:56,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426631871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:34:56,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:34:56,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-25 15:34:56,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329157493] [2022-11-25 15:34:56,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:34:56,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:34:56,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:34:56,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:34:56,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:34:56,339 INFO L87 Difference]: Start difference. First operand 338 states and 519 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:34:56,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:34:56,399 INFO L93 Difference]: Finished difference Result 719 states and 1122 transitions. [2022-11-25 15:34:56,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:34:56,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2022-11-25 15:34:56,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:34:56,404 INFO L225 Difference]: With dead ends: 719 [2022-11-25 15:34:56,404 INFO L226 Difference]: Without dead ends: 408 [2022-11-25 15:34:56,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:34:56,410 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 126 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1012 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 [2022-11-25 15:34:56,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1012 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:34:56,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-11-25 15:34:56,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 400. [2022-11-25 15:34:56,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 312 states have (on average 1.5929487179487178) internal successors, (497), 316 states have internal predecessors, (497), 66 states have call successors, (66), 21 states have call predecessors, (66), 21 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-11-25 15:34:56,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 628 transitions. [2022-11-25 15:34:56,463 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 628 transitions. Word has length 105 [2022-11-25 15:34:56,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:34:56,467 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 628 transitions. [2022-11-25 15:34:56,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:34:56,467 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 628 transitions. [2022-11-25 15:34:56,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-25 15:34:56,472 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:34:56,472 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 15:34:56,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 15:34:56,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:34:56,681 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:34:56,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:34:56,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1151846179, now seen corresponding path program 1 times [2022-11-25 15:34:56,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:34:56,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36081137] [2022-11-25 15:34:56,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:56,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:34:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:56,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:34:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:56,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 15:34:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:56,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:34:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:56,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-25 15:34:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:56,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 15:34:56,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:56,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 15:34:56,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:56,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 15:34:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:56,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 15:34:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:56,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-25 15:34:56,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:56,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 15:34:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:56,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 15:34:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:56,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 15:34:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:56,967 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 15:34:56,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:34:56,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36081137] [2022-11-25 15:34:56,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36081137] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:34:56,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009798464] [2022-11-25 15:34:56,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:56,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:34:56,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:34:56,970 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:34:56,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 15:34:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:57,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 15:34:57,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:34:57,338 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 15:34:57,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:34:57,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009798464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:34:57,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:34:57,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-11-25 15:34:57,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429315218] [2022-11-25 15:34:57,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:34:57,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:34:57,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:34:57,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:34:57,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:34:57,341 INFO L87 Difference]: Start difference. First operand 400 states and 628 transitions. Second operand has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-25 15:34:57,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:34:57,414 INFO L93 Difference]: Finished difference Result 791 states and 1246 transitions. [2022-11-25 15:34:57,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:34:57,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 106 [2022-11-25 15:34:57,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:34:57,418 INFO L225 Difference]: With dead ends: 791 [2022-11-25 15:34:57,418 INFO L226 Difference]: Without dead ends: 402 [2022-11-25 15:34:57,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:34:57,423 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 144 mSDsluCounter, 1357 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1865 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 [2022-11-25 15:34:57,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 1865 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:34:57,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-11-25 15:34:57,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2022-11-25 15:34:57,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 313 states have (on average 1.5910543130990416) internal successors, (498), 318 states have internal predecessors, (498), 66 states have call successors, (66), 21 states have call predecessors, (66), 22 states have return successors, (67), 64 states have call predecessors, (67), 65 states have call successors, (67) [2022-11-25 15:34:57,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 631 transitions. [2022-11-25 15:34:57,461 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 631 transitions. Word has length 106 [2022-11-25 15:34:57,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:34:57,461 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 631 transitions. [2022-11-25 15:34:57,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-25 15:34:57,462 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 631 transitions. [2022-11-25 15:34:57,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-25 15:34:57,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:34:57,466 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 15:34:57,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 15:34:57,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:34:57,673 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:34:57,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:34:57,673 INFO L85 PathProgramCache]: Analyzing trace with hash 800636676, now seen corresponding path program 1 times [2022-11-25 15:34:57,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:34:57,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768916018] [2022-11-25 15:34:57,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:57,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:34:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:57,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:34:57,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:57,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 15:34:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:57,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:34:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:57,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:34:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:57,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 15:34:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:57,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-25 15:34:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:57,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 15:34:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:57,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 15:34:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:57,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-25 15:34:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:57,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-25 15:34:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:57,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-25 15:34:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:57,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-25 15:34:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:57,985 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 15:34:57,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:34:57,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768916018] [2022-11-25 15:34:57,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768916018] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:34:57,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586094951] [2022-11-25 15:34:57,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:57,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:34:57,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:34:57,987 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:34:58,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 15:34:58,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:58,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 15:34:58,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:34:58,379 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 15:34:58,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:34:58,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586094951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:34:58,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:34:58,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-11-25 15:34:58,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197902206] [2022-11-25 15:34:58,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:34:58,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:34:58,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:34:58,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:34:58,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-11-25 15:34:58,383 INFO L87 Difference]: Start difference. First operand 402 states and 631 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-25 15:34:58,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:34:58,478 INFO L93 Difference]: Finished difference Result 793 states and 1251 transitions. [2022-11-25 15:34:58,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:34:58,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 107 [2022-11-25 15:34:58,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:34:58,483 INFO L225 Difference]: With dead ends: 793 [2022-11-25 15:34:58,483 INFO L226 Difference]: Without dead ends: 404 [2022-11-25 15:34:58,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-25 15:34:58,485 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 143 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1854 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 [2022-11-25 15:34:58,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 1854 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:34:58,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-11-25 15:34:58,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2022-11-25 15:34:58,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 314 states have (on average 1.589171974522293) internal successors, (499), 320 states have internal predecessors, (499), 66 states have call successors, (66), 21 states have call predecessors, (66), 23 states have return successors, (72), 64 states have call predecessors, (72), 65 states have call successors, (72) [2022-11-25 15:34:58,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 637 transitions. [2022-11-25 15:34:58,517 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 637 transitions. Word has length 107 [2022-11-25 15:34:58,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:34:58,517 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 637 transitions. [2022-11-25 15:34:58,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-25 15:34:58,518 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 637 transitions. [2022-11-25 15:34:58,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-25 15:34:58,520 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:34:58,521 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 15:34:58,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 15:34:58,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:34:58,728 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:34:58,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:34:58,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1770342286, now seen corresponding path program 1 times [2022-11-25 15:34:58,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:34:58,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087208932] [2022-11-25 15:34:58,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:58,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:34:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:58,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:34:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:58,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 15:34:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:58,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:34:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:58,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:34:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:58,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 15:34:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:58,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:34:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:58,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 15:34:58,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:58,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 15:34:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:58,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-25 15:34:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:58,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 15:34:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:58,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 15:34:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:58,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-25 15:34:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:58,967 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 15:34:58,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:34:58,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087208932] [2022-11-25 15:34:58,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087208932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:34:58,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:34:58,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 15:34:58,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999469228] [2022-11-25 15:34:58,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:34:58,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 15:34:58,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:34:58,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 15:34:58,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:34:58,970 INFO L87 Difference]: Start difference. First operand 404 states and 637 transitions. Second operand has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-25 15:35:01,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:35:01,171 INFO L93 Difference]: Finished difference Result 867 states and 1386 transitions. [2022-11-25 15:35:01,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 15:35:01,172 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2022-11-25 15:35:01,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:35:01,176 INFO L225 Difference]: With dead ends: 867 [2022-11-25 15:35:01,176 INFO L226 Difference]: Without dead ends: 486 [2022-11-25 15:35:01,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-25 15:35:01,178 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1220 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 2095 mSolverCounterSat, 400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 1136 SdHoareTripleChecker+Invalid, 2495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 400 IncrementalHoareTripleChecker+Valid, 2095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-25 15:35:01,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1240 Valid, 1136 Invalid, 2495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [400 Valid, 2095 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-25 15:35:01,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2022-11-25 15:35:01,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 404. [2022-11-25 15:35:01,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 314 states have (on average 1.589171974522293) internal successors, (499), 320 states have internal predecessors, (499), 66 states have call successors, (66), 21 states have call predecessors, (66), 23 states have return successors, (71), 64 states have call predecessors, (71), 65 states have call successors, (71) [2022-11-25 15:35:01,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 636 transitions. [2022-11-25 15:35:01,252 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 636 transitions. Word has length 108 [2022-11-25 15:35:01,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:35:01,252 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 636 transitions. [2022-11-25 15:35:01,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-25 15:35:01,253 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 636 transitions. [2022-11-25 15:35:01,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-25 15:35:01,255 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:35:01,256 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-25 15:35:01,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 15:35:01,256 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:35:01,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:01,257 INFO L85 PathProgramCache]: Analyzing trace with hash 954565969, now seen corresponding path program 2 times [2022-11-25 15:35:01,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:01,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228527341] [2022-11-25 15:35:01,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:01,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:01,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:35:01,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:01,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 15:35:01,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:01,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:35:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:01,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:35:01,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:01,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 15:35:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:01,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 15:35:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:01,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:35:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:01,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 15:35:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:01,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-25 15:35:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:01,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-25 15:35:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:01,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 15:35:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:01,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-25 15:35:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:01,532 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 15:35:01,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:35:01,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228527341] [2022-11-25 15:35:01,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228527341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:35:01,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:35:01,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 15:35:01,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480249428] [2022-11-25 15:35:01,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:35:01,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 15:35:01,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:35:01,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 15:35:01,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:35:01,535 INFO L87 Difference]: Start difference. First operand 404 states and 636 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-25 15:35:03,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:35:03,695 INFO L93 Difference]: Finished difference Result 869 states and 1389 transitions. [2022-11-25 15:35:03,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 15:35:03,696 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 109 [2022-11-25 15:35:03,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:35:03,700 INFO L225 Difference]: With dead ends: 869 [2022-11-25 15:35:03,700 INFO L226 Difference]: Without dead ends: 488 [2022-11-25 15:35:03,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-25 15:35:03,702 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1216 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 2084 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 1136 SdHoareTripleChecker+Invalid, 2485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 2084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-25 15:35:03,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1237 Valid, 1136 Invalid, 2485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 2084 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-25 15:35:03,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-11-25 15:35:03,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 406. [2022-11-25 15:35:03,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 315 states have (on average 1.5873015873015872) internal successors, (500), 322 states have internal predecessors, (500), 66 states have call successors, (66), 21 states have call predecessors, (66), 24 states have return successors, (73), 64 states have call predecessors, (73), 65 states have call successors, (73) [2022-11-25 15:35:03,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 639 transitions. [2022-11-25 15:35:03,759 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 639 transitions. Word has length 109 [2022-11-25 15:35:03,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:35:03,759 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 639 transitions. [2022-11-25 15:35:03,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-25 15:35:03,760 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 639 transitions. [2022-11-25 15:35:03,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 15:35:03,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:35:03,763 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 15:35:03,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 15:35:03,763 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:35:03,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:03,764 INFO L85 PathProgramCache]: Analyzing trace with hash 245616583, now seen corresponding path program 1 times [2022-11-25 15:35:03,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:03,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379490358] [2022-11-25 15:35:03,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:03,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:03,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:35:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:03,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 15:35:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:03,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:35:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:03,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:35:03,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:03,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 15:35:03,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:03,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 15:35:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:04,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-25 15:35:04,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:04,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-25 15:35:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:04,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-25 15:35:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:04,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 15:35:04,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:04,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-25 15:35:04,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:04,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 15:35:04,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:04,027 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 15:35:04,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:35:04,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379490358] [2022-11-25 15:35:04,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379490358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:35:04,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:35:04,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 15:35:04,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188263743] [2022-11-25 15:35:04,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:35:04,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 15:35:04,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:35:04,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 15:35:04,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:35:04,030 INFO L87 Difference]: Start difference. First operand 406 states and 639 transitions. Second operand has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-25 15:35:06,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:35:06,212 INFO L93 Difference]: Finished difference Result 869 states and 1388 transitions. [2022-11-25 15:35:06,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 15:35:06,213 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 110 [2022-11-25 15:35:06,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:35:06,216 INFO L225 Difference]: With dead ends: 869 [2022-11-25 15:35:06,217 INFO L226 Difference]: Without dead ends: 488 [2022-11-25 15:35:06,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2022-11-25 15:35:06,219 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1218 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 2094 mSolverCounterSat, 396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 1136 SdHoareTripleChecker+Invalid, 2490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 396 IncrementalHoareTripleChecker+Valid, 2094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-25 15:35:06,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1238 Valid, 1136 Invalid, 2490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [396 Valid, 2094 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-25 15:35:06,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-11-25 15:35:06,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 406. [2022-11-25 15:35:06,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 315 states have (on average 1.5873015873015872) internal successors, (500), 322 states have internal predecessors, (500), 66 states have call successors, (66), 21 states have call predecessors, (66), 24 states have return successors, (73), 64 states have call predecessors, (73), 65 states have call successors, (73) [2022-11-25 15:35:06,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 639 transitions. [2022-11-25 15:35:06,256 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 639 transitions. Word has length 110 [2022-11-25 15:35:06,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:35:06,257 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 639 transitions. [2022-11-25 15:35:06,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-25 15:35:06,257 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 639 transitions. [2022-11-25 15:35:06,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 15:35:06,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:35:06,260 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 15:35:06,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 15:35:06,260 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:35:06,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:06,261 INFO L85 PathProgramCache]: Analyzing trace with hash -641606263, now seen corresponding path program 1 times [2022-11-25 15:35:06,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:06,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809992643] [2022-11-25 15:35:06,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:06,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:06,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:06,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:35:06,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:06,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 15:35:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:06,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:35:06,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:06,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:35:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:06,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 15:35:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:06,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 15:35:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:06,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-25 15:35:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:06,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-25 15:35:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:06,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-25 15:35:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:06,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 15:35:06,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:06,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-25 15:35:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:06,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 15:35:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:06,514 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 15:35:06,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:35:06,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809992643] [2022-11-25 15:35:06,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809992643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:35:06,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:35:06,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 15:35:06,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095667203] [2022-11-25 15:35:06,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:35:06,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 15:35:06,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:35:06,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 15:35:06,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:35:06,517 INFO L87 Difference]: Start difference. First operand 406 states and 639 transitions. Second operand has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-25 15:35:09,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:35:09,480 INFO L93 Difference]: Finished difference Result 867 states and 1383 transitions. [2022-11-25 15:35:09,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 15:35:09,481 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 110 [2022-11-25 15:35:09,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:35:09,487 INFO L225 Difference]: With dead ends: 867 [2022-11-25 15:35:09,487 INFO L226 Difference]: Without dead ends: 488 [2022-11-25 15:35:09,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-25 15:35:09,492 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 1360 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 3529 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 3962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 3529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-25 15:35:09,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1360 Valid, 1484 Invalid, 3962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [433 Valid, 3529 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-25 15:35:09,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-11-25 15:35:09,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 406. [2022-11-25 15:35:09,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 315 states have (on average 1.5873015873015872) internal successors, (500), 322 states have internal predecessors, (500), 66 states have call successors, (66), 21 states have call predecessors, (66), 24 states have return successors, (72), 64 states have call predecessors, (72), 65 states have call successors, (72) [2022-11-25 15:35:09,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 638 transitions. [2022-11-25 15:35:09,532 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 638 transitions. Word has length 110 [2022-11-25 15:35:09,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:35:09,533 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 638 transitions. [2022-11-25 15:35:09,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-25 15:35:09,533 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 638 transitions. [2022-11-25 15:35:09,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-25 15:35:09,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:35:09,537 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-25 15:35:09,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 15:35:09,537 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:35:09,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:09,538 INFO L85 PathProgramCache]: Analyzing trace with hash 78260293, now seen corresponding path program 2 times [2022-11-25 15:35:09,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:09,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500822316] [2022-11-25 15:35:09,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:09,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:09,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:09,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:35:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:09,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 15:35:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:09,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:35:09,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:09,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:35:09,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:09,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 15:35:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:09,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 15:35:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:09,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 15:35:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:09,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-25 15:35:09,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:09,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 15:35:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:09,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 15:35:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:09,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-25 15:35:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:09,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 15:35:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:09,818 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 15:35:09,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:35:09,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500822316] [2022-11-25 15:35:09,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500822316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:35:09,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:35:09,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 15:35:09,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772488100] [2022-11-25 15:35:09,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:35:09,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 15:35:09,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:35:09,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 15:35:09,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:35:09,821 INFO L87 Difference]: Start difference. First operand 406 states and 638 transitions. Second operand has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-25 15:35:12,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:35:12,608 INFO L93 Difference]: Finished difference Result 869 states and 1389 transitions. [2022-11-25 15:35:12,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 15:35:12,608 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 111 [2022-11-25 15:35:12,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:35:12,613 INFO L225 Difference]: With dead ends: 869 [2022-11-25 15:35:12,613 INFO L226 Difference]: Without dead ends: 490 [2022-11-25 15:35:12,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-25 15:35:12,616 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 1352 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 3534 mSolverCounterSat, 436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 1485 SdHoareTripleChecker+Invalid, 3970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 436 IncrementalHoareTripleChecker+Valid, 3534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-25 15:35:12,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1352 Valid, 1485 Invalid, 3970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [436 Valid, 3534 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-25 15:35:12,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2022-11-25 15:35:12,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 408. [2022-11-25 15:35:12,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 316 states have (on average 1.5854430379746836) internal successors, (501), 324 states have internal predecessors, (501), 66 states have call successors, (66), 21 states have call predecessors, (66), 25 states have return successors, (77), 64 states have call predecessors, (77), 65 states have call successors, (77) [2022-11-25 15:35:12,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 644 transitions. [2022-11-25 15:35:12,683 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 644 transitions. Word has length 111 [2022-11-25 15:35:12,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:35:12,684 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 644 transitions. [2022-11-25 15:35:12,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-25 15:35:12,684 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 644 transitions. [2022-11-25 15:35:12,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 15:35:12,688 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:35:12,688 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 15:35:12,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 15:35:12,689 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:35:12,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:12,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1156653796, now seen corresponding path program 1 times [2022-11-25 15:35:12,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:12,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671146832] [2022-11-25 15:35:12,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:12,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:12,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:35:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:12,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 15:35:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:12,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:35:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:12,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:35:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:12,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 15:35:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:12,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 15:35:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:12,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 15:35:12,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:12,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 15:35:12,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:12,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:35:12,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:12,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-25 15:35:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:12,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-25 15:35:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:12,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-25 15:35:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:12,852 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-25 15:35:12,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:35:12,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671146832] [2022-11-25 15:35:12,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671146832] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:35:12,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253238782] [2022-11-25 15:35:12,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:12,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:35:12,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:35:12,854 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:35:12,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 15:35:13,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:13,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:35:13,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:35:13,164 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-25 15:35:13,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:35:13,240 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-25 15:35:13,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253238782] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:35:13,240 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:35:13,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2022-11-25 15:35:13,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705409607] [2022-11-25 15:35:13,241 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:35:13,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 15:35:13,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:35:13,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 15:35:13,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-25 15:35:13,243 INFO L87 Difference]: Start difference. First operand 408 states and 644 transitions. Second operand has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 7 states have internal predecessors, (105), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 15:35:15,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:35:15,419 INFO L93 Difference]: Finished difference Result 1056 states and 1758 transitions. [2022-11-25 15:35:15,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 15:35:15,420 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 7 states have internal predecessors, (105), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 112 [2022-11-25 15:35:15,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:35:15,428 INFO L225 Difference]: With dead ends: 1056 [2022-11-25 15:35:15,428 INFO L226 Difference]: Without dead ends: 907 [2022-11-25 15:35:15,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2022-11-25 15:35:15,430 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 1649 mSDsluCounter, 1347 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 612 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1706 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 2221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 612 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 15:35:15,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1706 Valid, 1631 Invalid, 2221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [612 Valid, 1609 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 15:35:15,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2022-11-25 15:35:15,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 801. [2022-11-25 15:35:15,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 630 states have (on average 1.6412698412698412) internal successors, (1034), 638 states have internal predecessors, (1034), 145 states have call successors, (145), 21 states have call predecessors, (145), 25 states have return successors, (166), 143 states have call predecessors, (166), 144 states have call successors, (166) [2022-11-25 15:35:15,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1345 transitions. [2022-11-25 15:35:15,518 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1345 transitions. Word has length 112 [2022-11-25 15:35:15,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:35:15,518 INFO L495 AbstractCegarLoop]: Abstraction has 801 states and 1345 transitions. [2022-11-25 15:35:15,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 7 states have internal predecessors, (105), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 15:35:15,519 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1345 transitions. [2022-11-25 15:35:15,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-25 15:35:15,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:35:15,523 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 15:35:15,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 15:35:15,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e676915-ee0e-4f7b-ac10-12effeedd6ed/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:35:15,731 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:35:15,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:15,731 INFO L85 PathProgramCache]: Analyzing trace with hash -801695193, now seen corresponding path program 1 times [2022-11-25 15:35:15,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:15,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939158072] [2022-11-25 15:35:15,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:15,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:15,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:35:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:15,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 15:35:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:15,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:35:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:15,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:35:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:15,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 15:35:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:15,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 15:35:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:15,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:35:15,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:15,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-25 15:35:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:15,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-25 15:35:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:15,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-25 15:35:15,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:15,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 15:35:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:15,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-25 15:35:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:15,883 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-25 15:35:15,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:35:15,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939158072] [2022-11-25 15:35:15,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939158072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:35:15,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:35:15,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:35:15,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972353911] [2022-11-25 15:35:15,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:35:15,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:35:15,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:35:15,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:35:15,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:35:15,886 INFO L87 Difference]: Start difference. First operand 801 states and 1345 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:35:17,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:35:17,620 INFO L93 Difference]: Finished difference Result 2014 states and 3463 transitions. [2022-11-25 15:35:17,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:35:17,621 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2022-11-25 15:35:17,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:35:17,629 INFO L225 Difference]: With dead ends: 2014 [2022-11-25 15:35:17,629 INFO L226 Difference]: Without dead ends: 1281 [2022-11-25 15:35:17,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:35:17,633 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 1202 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 465 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 1722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 465 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-25 15:35:17,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1221 Valid, 1013 Invalid, 1722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [465 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-25 15:35:17,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2022-11-25 15:35:17,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1191. [2022-11-25 15:35:17,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1191 states, 941 states have (on average 1.6514346439957492) internal successors, (1554), 949 states have internal predecessors, (1554), 224 states have call successors, (224), 21 states have call predecessors, (224), 25 states have return successors, (255), 222 states have call predecessors, (255), 223 states have call successors, (255) [2022-11-25 15:35:17,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1191 states to 1191 states and 2033 transitions. [2022-11-25 15:35:17,769 INFO L78 Accepts]: Start accepts. Automaton has 1191 states and 2033 transitions. Word has length 118 [2022-11-25 15:35:17,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:35:17,769 INFO L495 AbstractCegarLoop]: Abstraction has 1191 states and 2033 transitions. [2022-11-25 15:35:17,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:35:17,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1191 states and 2033 transitions. [2022-11-25 15:35:17,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-25 15:35:17,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:35:17,776 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 15:35:17,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 15:35:17,777 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:35:17,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:17,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1955977789, now seen corresponding path program 1 times [2022-11-25 15:35:17,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:17,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102101199] [2022-11-25 15:35:17,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:17,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:17,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:35:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:17,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 15:35:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:17,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:35:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:17,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:35:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:17,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 15:35:17,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:17,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 15:35:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:17,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 15:35:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:17,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-25 15:35:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:17,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 15:35:17,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:17,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 15:35:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:17,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-25 15:35:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:17,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-25 15:35:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:17,905 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-25 15:35:17,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:35:17,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102101199] [2022-11-25 15:35:17,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102101199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:35:17,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:35:17,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:35:17,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96436832] [2022-11-25 15:35:17,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:35:17,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:35:17,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:35:17,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:35:17,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:35:17,908 INFO L87 Difference]: Start difference. First operand 1191 states and 2033 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:35:19,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:35:19,691 INFO L93 Difference]: Finished difference Result 2963 states and 5137 transitions. [2022-11-25 15:35:19,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:35:19,692 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2022-11-25 15:35:19,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:35:19,703 INFO L225 Difference]: With dead ends: 2963 [2022-11-25 15:35:19,703 INFO L226 Difference]: Without dead ends: 1893 [2022-11-25 15:35:19,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:35:19,708 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1198 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 470 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 1727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 470 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-25 15:35:19,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1216 Valid, 986 Invalid, 1727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [470 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-25 15:35:19,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1893 states. [2022-11-25 15:35:19,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1893 to 1803. [2022-11-25 15:35:19,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1803 states, 1434 states have (on average 1.6576011157601116) internal successors, (2377), 1442 states have internal predecessors, (2377), 343 states have call successors, (343), 21 states have call predecessors, (343), 25 states have return successors, (374), 341 states have call predecessors, (374), 342 states have call successors, (374) [2022-11-25 15:35:19,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 3094 transitions. [2022-11-25 15:35:19,914 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 3094 transitions. Word has length 119 [2022-11-25 15:35:19,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:35:19,915 INFO L495 AbstractCegarLoop]: Abstraction has 1803 states and 3094 transitions. [2022-11-25 15:35:19,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:35:19,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 3094 transitions. [2022-11-25 15:35:19,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-25 15:35:19,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:35:19,929 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 15:35:19,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 15:35:19,929 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:35:19,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:19,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1049418757, now seen corresponding path program 1 times [2022-11-25 15:35:19,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:19,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898659882] [2022-11-25 15:35:19,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:19,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:19,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:35:20,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 15:35:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:35:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:35:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 15:35:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 15:35:20,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-25 15:35:20,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 15:35:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 15:35:20,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-25 15:35:20,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 15:35:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-25 15:35:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,061 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-25 15:35:20,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:35:20,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898659882] [2022-11-25 15:35:20,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898659882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:35:20,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:35:20,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:35:20,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643744363] [2022-11-25 15:35:20,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:35:20,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:35:20,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:35:20,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:35:20,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:35:20,064 INFO L87 Difference]: Start difference. First operand 1803 states and 3094 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:35:21,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:35:21,938 INFO L93 Difference]: Finished difference Result 4388 states and 7671 transitions. [2022-11-25 15:35:21,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:35:21,940 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2022-11-25 15:35:21,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:35:21,955 INFO L225 Difference]: With dead ends: 4388 [2022-11-25 15:35:21,956 INFO L226 Difference]: Without dead ends: 2831 [2022-11-25 15:35:21,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:35:21,962 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 1195 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1213 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 1705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 1254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-25 15:35:21,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1213 Valid, 950 Invalid, 1705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [451 Valid, 1254 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-25 15:35:21,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2022-11-25 15:35:22,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 2741. [2022-11-25 15:35:22,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2741 states, 2210 states have (on average 1.66289592760181) internal successors, (3675), 2218 states have internal predecessors, (3675), 505 states have call successors, (505), 21 states have call predecessors, (505), 25 states have return successors, (552), 503 states have call predecessors, (552), 504 states have call successors, (552) [2022-11-25 15:35:22,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2741 states to 2741 states and 4732 transitions. [2022-11-25 15:35:22,248 INFO L78 Accepts]: Start accepts. Automaton has 2741 states and 4732 transitions. Word has length 120 [2022-11-25 15:35:22,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:35:22,249 INFO L495 AbstractCegarLoop]: Abstraction has 2741 states and 4732 transitions. [2022-11-25 15:35:22,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:35:22,249 INFO L276 IsEmpty]: Start isEmpty. Operand 2741 states and 4732 transitions. [2022-11-25 15:35:22,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-25 15:35:22,262 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:35:22,262 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 15:35:22,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 15:35:22,263 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:35:22,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:22,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1243441026, now seen corresponding path program 1 times [2022-11-25 15:35:22,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:22,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232644853] [2022-11-25 15:35:22,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:22,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:22,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:22,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:35:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:22,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 15:35:22,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:22,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:35:22,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:22,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:35:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:22,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 15:35:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:22,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 15:35:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:22,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-25 15:35:22,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:22,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:35:22,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:22,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-25 15:35:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:22,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 15:35:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:22,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 15:35:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:22,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-25 15:35:22,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:22,388 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-25 15:35:22,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:35:22,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232644853] [2022-11-25 15:35:22,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232644853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:35:22,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:35:22,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:35:22,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411190386] [2022-11-25 15:35:22,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:35:22,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:35:22,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:35:22,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:35:22,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:35:22,391 INFO L87 Difference]: Start difference. First operand 2741 states and 4732 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:35:24,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:35:24,433 INFO L93 Difference]: Finished difference Result 6637 states and 11680 transitions. [2022-11-25 15:35:24,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:35:24,434 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2022-11-25 15:35:24,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:35:24,457 INFO L225 Difference]: With dead ends: 6637 [2022-11-25 15:35:24,457 INFO L226 Difference]: Without dead ends: 4346 [2022-11-25 15:35:24,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:35:24,468 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 1195 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 470 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1213 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 1731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 470 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-25 15:35:24,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1213 Valid, 954 Invalid, 1731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [470 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-25 15:35:24,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4346 states. [2022-11-25 15:35:24,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4346 to 4256. [2022-11-25 15:35:24,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4256 states, 3480 states have (on average 1.6666666666666667) internal successors, (5800), 3488 states have internal predecessors, (5800), 750 states have call successors, (750), 21 states have call predecessors, (750), 25 states have return successors, (823), 748 states have call predecessors, (823), 749 states have call successors, (823) [2022-11-25 15:35:24,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4256 states to 4256 states and 7373 transitions. [2022-11-25 15:35:24,918 INFO L78 Accepts]: Start accepts. Automaton has 4256 states and 7373 transitions. Word has length 121 [2022-11-25 15:35:24,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:35:24,919 INFO L495 AbstractCegarLoop]: Abstraction has 4256 states and 7373 transitions. [2022-11-25 15:35:24,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:35:24,919 INFO L276 IsEmpty]: Start isEmpty. Operand 4256 states and 7373 transitions. [2022-11-25 15:35:24,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-25 15:35:24,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:35:24,935 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 15:35:24,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 15:35:24,936 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:35:24,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:24,936 INFO L85 PathProgramCache]: Analyzing trace with hash -523521271, now seen corresponding path program 1 times [2022-11-25 15:35:24,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:24,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901366425] [2022-11-25 15:35:24,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:24,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:25,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:35:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:25,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 15:35:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:25,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:35:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:25,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:35:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:25,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 15:35:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:25,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 15:35:25,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:25,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-25 15:35:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:25,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-25 15:35:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:25,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 15:35:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:25,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 15:35:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:25,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-25 15:35:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:25,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 15:35:25,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:25,117 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-25 15:35:25,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:35:25,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901366425] [2022-11-25 15:35:25,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901366425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:35:25,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:35:25,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:35:25,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33731197] [2022-11-25 15:35:25,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:35:25,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:35:25,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:35:25,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:35:25,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:35:25,121 INFO L87 Difference]: Start difference. First operand 4256 states and 7373 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:35:27,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:35:27,324 INFO L93 Difference]: Finished difference Result 10653 states and 18792 transitions. [2022-11-25 15:35:27,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:35:27,325 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2022-11-25 15:35:27,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:35:27,363 INFO L225 Difference]: With dead ends: 10653 [2022-11-25 15:35:27,363 INFO L226 Difference]: Without dead ends: 7079 [2022-11-25 15:35:27,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:35:27,376 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 1192 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 475 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 1734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 475 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-25 15:35:27,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 991 Invalid, 1734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [475 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-25 15:35:27,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7079 states. [2022-11-25 15:35:28,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7079 to 6989. [2022-11-25 15:35:28,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6989 states, 5720 states have (on average 1.6617132867132867) internal successors, (9505), 5728 states have internal predecessors, (9505), 1243 states have call successors, (1243), 21 states have call predecessors, (1243), 25 states have return successors, (1360), 1241 states have call predecessors, (1360), 1242 states have call successors, (1360) [2022-11-25 15:35:28,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6989 states to 6989 states and 12108 transitions. [2022-11-25 15:35:28,119 INFO L78 Accepts]: Start accepts. Automaton has 6989 states and 12108 transitions. Word has length 122 [2022-11-25 15:35:28,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:35:28,120 INFO L495 AbstractCegarLoop]: Abstraction has 6989 states and 12108 transitions. [2022-11-25 15:35:28,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:35:28,121 INFO L276 IsEmpty]: Start isEmpty. Operand 6989 states and 12108 transitions. [2022-11-25 15:35:28,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-25 15:35:28,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:35:28,141 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 15:35:28,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 15:35:28,142 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:35:28,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:28,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1115485310, now seen corresponding path program 1 times [2022-11-25 15:35:28,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:28,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425158343] [2022-11-25 15:35:28,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:28,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:28,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:35:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:28,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 15:35:28,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:28,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:35:28,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:28,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:35:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:28,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 15:35:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:28,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 15:35:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:28,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-25 15:35:28,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:28,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 15:35:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:28,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-25 15:35:28,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:28,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-25 15:35:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:28,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-25 15:35:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:28,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-25 15:35:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:28,269 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-25 15:35:28,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:35:28,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425158343] [2022-11-25 15:35:28,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425158343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:35:28,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:35:28,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:35:28,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286121605] [2022-11-25 15:35:28,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:35:28,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:35:28,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:35:28,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:35:28,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:35:28,273 INFO L87 Difference]: Start difference. First operand 6989 states and 12108 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:35:30,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:35:30,643 INFO L93 Difference]: Finished difference Result 17793 states and 31364 transitions. [2022-11-25 15:35:30,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:35:30,643 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 123 [2022-11-25 15:35:30,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:35:30,695 INFO L225 Difference]: With dead ends: 17793 [2022-11-25 15:35:30,696 INFO L226 Difference]: Without dead ends: 11863 [2022-11-25 15:35:30,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:35:30,717 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 1190 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 471 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 471 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-25 15:35:30,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 955 Invalid, 1732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [471 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-25 15:35:30,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11863 states. [2022-11-25 15:35:31,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11863 to 11773. [2022-11-25 15:35:31,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11773 states, 9682 states have (on average 1.6611237347655443) internal successors, (16083), 9690 states have internal predecessors, (16083), 2065 states have call successors, (2065), 21 states have call predecessors, (2065), 25 states have return successors, (2260), 2063 states have call predecessors, (2260), 2064 states have call successors, (2260) [2022-11-25 15:35:31,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11773 states to 11773 states and 20408 transitions. [2022-11-25 15:35:31,717 INFO L78 Accepts]: Start accepts. Automaton has 11773 states and 20408 transitions. Word has length 123 [2022-11-25 15:35:31,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:35:31,718 INFO L495 AbstractCegarLoop]: Abstraction has 11773 states and 20408 transitions. [2022-11-25 15:35:31,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:35:31,718 INFO L276 IsEmpty]: Start isEmpty. Operand 11773 states and 20408 transitions. [2022-11-25 15:35:31,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-25 15:35:31,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:35:31,749 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 15:35:31,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 15:35:31,750 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:35:31,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:31,750 INFO L85 PathProgramCache]: Analyzing trace with hash -493220089, now seen corresponding path program 1 times [2022-11-25 15:35:31,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:31,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763089500] [2022-11-25 15:35:31,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:31,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:31,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:35:31,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:31,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 15:35:31,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:31,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:35:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:31,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:35:31,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:31,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 15:35:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:31,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 15:35:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:31,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-25 15:35:31,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:31,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 15:35:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:31,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 15:35:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:31,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-25 15:35:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:31,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 15:35:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:31,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-25 15:35:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:31,960 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-25 15:35:31,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:35:31,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763089500] [2022-11-25 15:35:31,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763089500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:35:31,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:35:31,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:35:31,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783191077] [2022-11-25 15:35:31,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:35:31,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:35:31,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:35:31,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:35:31,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:35:31,964 INFO L87 Difference]: Start difference. First operand 11773 states and 20408 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:35:34,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:35:34,775 INFO L93 Difference]: Finished difference Result 28226 states and 49489 transitions. [2022-11-25 15:35:34,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:35:34,775 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2022-11-25 15:35:34,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:35:34,856 INFO L225 Difference]: With dead ends: 28226 [2022-11-25 15:35:34,856 INFO L226 Difference]: Without dead ends: 18456 [2022-11-25 15:35:34,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:35:34,884 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 1188 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 1702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-25 15:35:34,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1207 Valid, 952 Invalid, 1702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-25 15:35:34,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18456 states. [2022-11-25 15:35:36,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18456 to 18366. [2022-11-25 15:35:36,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18366 states, 15072 states have (on average 1.6354166666666667) internal successors, (24649), 15080 states have internal predecessors, (24649), 3268 states have call successors, (3268), 21 states have call predecessors, (3268), 25 states have return successors, (3607), 3266 states have call predecessors, (3607), 3267 states have call successors, (3607) [2022-11-25 15:35:36,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18366 states to 18366 states and 31524 transitions. [2022-11-25 15:35:36,516 INFO L78 Accepts]: Start accepts. Automaton has 18366 states and 31524 transitions. Word has length 124 [2022-11-25 15:35:36,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:35:36,517 INFO L495 AbstractCegarLoop]: Abstraction has 18366 states and 31524 transitions. [2022-11-25 15:35:36,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:35:36,517 INFO L276 IsEmpty]: Start isEmpty. Operand 18366 states and 31524 transitions. [2022-11-25 15:35:36,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-25 15:35:36,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:35:36,552 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 15:35:36,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 15:35:36,553 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:35:36,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:36,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1450923677, now seen corresponding path program 1 times [2022-11-25 15:35:36,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:36,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138100679] [2022-11-25 15:35:36,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:36,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:36,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:36,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:35:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:36,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 15:35:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:36,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:35:36,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:36,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:35:36,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:36,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 15:35:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:36,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 15:35:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:36,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 15:35:36,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:36,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-25 15:35:36,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:36,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 15:35:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:36,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-25 15:35:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:36,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-25 15:35:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:36,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-25 15:35:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:36,694 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-25 15:35:36,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:35:36,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138100679] [2022-11-25 15:35:36,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138100679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:35:36,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:35:36,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:35:36,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206705599] [2022-11-25 15:35:36,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:35:36,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:35:36,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:35:36,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:35:36,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:35:36,698 INFO L87 Difference]: Start difference. First operand 18366 states and 31524 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:35:40,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:35:40,683 INFO L93 Difference]: Finished difference Result 48648 states and 84993 transitions. [2022-11-25 15:35:40,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:35:40,684 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2022-11-25 15:35:40,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:35:40,837 INFO L225 Difference]: With dead ends: 48648 [2022-11-25 15:35:40,837 INFO L226 Difference]: Without dead ends: 32892 [2022-11-25 15:35:40,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:35:40,884 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 1188 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 1251 mSolverCounterSat, 487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 1738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 487 IncrementalHoareTripleChecker+Valid, 1251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-25 15:35:40,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1206 Valid, 955 Invalid, 1738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [487 Valid, 1251 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-25 15:35:40,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32892 states. [2022-11-25 15:35:44,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32892 to 32802. [2022-11-25 15:35:44,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32802 states, 27058 states have (on average 1.6319018404907975) internal successors, (44156), 27066 states have internal predecessors, (44156), 5718 states have call successors, (5718), 21 states have call predecessors, (5718), 25 states have return successors, (6331), 5716 states have call predecessors, (6331), 5717 states have call successors, (6331) [2022-11-25 15:35:44,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32802 states to 32802 states and 56205 transitions. [2022-11-25 15:35:44,164 INFO L78 Accepts]: Start accepts. Automaton has 32802 states and 56205 transitions. Word has length 125 [2022-11-25 15:35:44,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:35:44,165 INFO L495 AbstractCegarLoop]: Abstraction has 32802 states and 56205 transitions. [2022-11-25 15:35:44,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:35:44,165 INFO L276 IsEmpty]: Start isEmpty. Operand 32802 states and 56205 transitions. [2022-11-25 15:35:44,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-25 15:35:44,193 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:35:44,193 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 15:35:44,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 15:35:44,193 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:35:44,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:44,194 INFO L85 PathProgramCache]: Analyzing trace with hash 22185197, now seen corresponding path program 1 times [2022-11-25 15:35:44,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:44,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756097607] [2022-11-25 15:35:44,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:44,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:44,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:35:44,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:44,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 15:35:44,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:44,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:35:44,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:44,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:35:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:44,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 15:35:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:44,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 15:35:44,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:44,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:35:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:44,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 15:35:44,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:44,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-25 15:35:44,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:44,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 15:35:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:44,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-25 15:35:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:44,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-25 15:35:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:44,337 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-25 15:35:44,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:35:44,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756097607] [2022-11-25 15:35:44,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756097607] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:35:44,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:35:44,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:35:44,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681625625] [2022-11-25 15:35:44,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:35:44,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:35:44,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:35:44,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:35:44,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:35:44,341 INFO L87 Difference]: Start difference. First operand 32802 states and 56205 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:35:50,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:35:50,242 INFO L93 Difference]: Finished difference Result 89545 states and 155627 transitions. [2022-11-25 15:35:50,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:35:50,242 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 126 [2022-11-25 15:35:50,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:35:50,616 INFO L225 Difference]: With dead ends: 89545 [2022-11-25 15:35:50,617 INFO L226 Difference]: Without dead ends: 60229 [2022-11-25 15:35:50,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:35:50,692 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 1181 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 462 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1199 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 1736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 462 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-25 15:35:50,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1199 Valid, 965 Invalid, 1736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [462 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-25 15:35:50,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60229 states. [2022-11-25 15:35:55,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60229 to 60139. [2022-11-25 15:35:55,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60139 states, 49882 states have (on average 1.6274207128824025) internal successors, (81179), 49890 states have internal predecessors, (81179), 10231 states have call successors, (10231), 21 states have call predecessors, (10231), 25 states have return successors, (11376), 10229 states have call predecessors, (11376), 10230 states have call successors, (11376) [2022-11-25 15:35:56,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60139 states to 60139 states and 102786 transitions. [2022-11-25 15:35:56,181 INFO L78 Accepts]: Start accepts. Automaton has 60139 states and 102786 transitions. Word has length 126 [2022-11-25 15:35:56,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:35:56,182 INFO L495 AbstractCegarLoop]: Abstraction has 60139 states and 102786 transitions. [2022-11-25 15:35:56,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:35:56,183 INFO L276 IsEmpty]: Start isEmpty. Operand 60139 states and 102786 transitions. [2022-11-25 15:35:56,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-25 15:35:56,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:35:56,214 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 15:35:56,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 15:35:56,215 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:35:56,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:56,215 INFO L85 PathProgramCache]: Analyzing trace with hash 906841661, now seen corresponding path program 1 times [2022-11-25 15:35:56,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:56,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38419582] [2022-11-25 15:35:56,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:56,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:56,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:56,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:35:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:56,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 15:35:56,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:56,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:35:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:56,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:35:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:56,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 15:35:56,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:56,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 15:35:56,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:56,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-25 15:35:56,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:56,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-25 15:35:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:56,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-25 15:35:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:56,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-25 15:35:56,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:56,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-25 15:35:56,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:56,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-25 15:35:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:56,335 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-25 15:35:56,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:35:56,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38419582] [2022-11-25 15:35:56,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38419582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:35:56,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:35:56,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:35:56,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87180219] [2022-11-25 15:35:56,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:35:56,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:35:56,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:35:56,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:35:56,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:35:56,339 INFO L87 Difference]: Start difference. First operand 60139 states and 102786 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:36:05,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:05,294 INFO L93 Difference]: Finished difference Result 112636 states and 196205 transitions. [2022-11-25 15:36:05,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:36:05,295 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 127 [2022-11-25 15:36:05,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted.