./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro --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 9244be1607acf28cf3da39a66e263e3f7b227fe42ed993f89a6311649f8ded26 --- 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-8393723 [2022-11-18 20:24:23,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:24:23,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:24:23,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:24:23,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:24:23,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:24:23,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:24:23,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:24:23,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:24:23,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:24:23,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:24:23,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:24:23,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:24:23,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:24:23,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:24:23,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:24:23,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:24:23,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:24:23,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:24:23,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:24:23,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:24:23,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:24:23,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:24:23,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:24:23,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:24:23,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:24:23,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:24:23,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:24:23,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:24:23,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:24:23,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:24:23,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:24:23,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:24:23,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:24:23,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:24:23,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:24:23,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:24:23,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:24:23,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:24:23,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:24:23,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:24:23,480 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:24:23,516 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:24:23,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:24:23,517 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:24:23,517 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:24:23,518 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:24:23,518 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:24:23,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:24:23,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:24:23,520 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:24:23,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:24:23,521 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:24:23,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:24:23,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:24:23,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:24:23,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:24:23,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:24:23,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:24:23,522 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:24:23,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:24:23,523 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:24:23,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:24:23,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:24:23,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:24:23,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:24:23,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:24:23,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:24:23,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:24:23,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:24:23,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:24:23,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:24:23,525 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:24:23,525 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:24:23,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:24:23,525 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9244be1607acf28cf3da39a66e263e3f7b227fe42ed993f89a6311649f8ded26 [2022-11-18 20:24:23,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:24:23,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:24:23,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:24:23,955 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:24:23,956 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:24:23,958 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/product-lines/email_spec8_product29.cil.c [2022-11-18 20:24:24,047 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/data/afcb0b7d5/3bba7ea39bc9491fbd5f57eb707751f8/FLAG8344d4ab9 [2022-11-18 20:24:24,876 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:24:24,876 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/sv-benchmarks/c/product-lines/email_spec8_product29.cil.c [2022-11-18 20:24:24,905 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/data/afcb0b7d5/3bba7ea39bc9491fbd5f57eb707751f8/FLAG8344d4ab9 [2022-11-18 20:24:24,991 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/data/afcb0b7d5/3bba7ea39bc9491fbd5f57eb707751f8 [2022-11-18 20:24:24,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:24:24,995 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:24:24,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:24:24,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:24:25,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:24:25,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:24:24" (1/1) ... [2022-11-18 20:24:25,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12e06708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:24:25, skipping insertion in model container [2022-11-18 20:24:25,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:24:24" (1/1) ... [2022-11-18 20:24:25,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:24:25,113 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:24:25,588 WARN L234 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_7d53a549-ea07-4a2b-bffc-559f03ea308c/sv-benchmarks/c/product-lines/email_spec8_product29.cil.c[29472,29485] [2022-11-18 20:24:25,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:24:25,782 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:24:25,839 WARN L234 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_7d53a549-ea07-4a2b-bffc-559f03ea308c/sv-benchmarks/c/product-lines/email_spec8_product29.cil.c[29472,29485] [2022-11-18 20:24:25,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:24:25,910 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:24:25,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:24:25 WrapperNode [2022-11-18 20:24:25,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:24:25,911 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:24:25,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:24:25,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:24:25,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:24:25" (1/1) ... [2022-11-18 20:24:25,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:24:25" (1/1) ... [2022-11-18 20:24:26,041 INFO L138 Inliner]: procedures = 132, calls = 232, calls flagged for inlining = 56, calls inlined = 48, statements flattened = 939 [2022-11-18 20:24:26,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:24:26,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:24:26,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:24:26,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:24:26,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:24:25" (1/1) ... [2022-11-18 20:24:26,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:24:25" (1/1) ... [2022-11-18 20:24:26,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:24:25" (1/1) ... [2022-11-18 20:24:26,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:24:25" (1/1) ... [2022-11-18 20:24:26,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:24:25" (1/1) ... [2022-11-18 20:24:26,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:24:25" (1/1) ... [2022-11-18 20:24:26,112 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:24:25" (1/1) ... [2022-11-18 20:24:26,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:24:25" (1/1) ... [2022-11-18 20:24:26,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:24:26,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:24:26,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:24:26,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:24:26,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:24:25" (1/1) ... [2022-11-18 20:24:26,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:24:26,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:24:26,229 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:24:26,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:24:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-18 20:24:26,308 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-18 20:24:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-18 20:24:26,309 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-18 20:24:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-18 20:24:26,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-18 20:24:26,310 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-18 20:24:26,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-18 20:24:26,317 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-18 20:24:26,317 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-18 20:24:26,318 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-18 20:24:26,318 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-18 20:24:26,318 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-18 20:24:26,318 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-18 20:24:26,318 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-18 20:24:26,319 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-18 20:24:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-18 20:24:26,319 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-18 20:24:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-18 20:24:26,319 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-18 20:24:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-18 20:24:26,320 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-18 20:24:26,320 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-18 20:24:26,320 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-18 20:24:26,320 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-18 20:24:26,320 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-18 20:24:26,320 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-18 20:24:26,320 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-18 20:24:26,320 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-18 20:24:26,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:24:26,321 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-18 20:24:26,321 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-18 20:24:26,321 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-18 20:24:26,321 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-18 20:24:26,321 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-18 20:24:26,321 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-18 20:24:26,322 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-18 20:24:26,322 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-18 20:24:26,322 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-18 20:24:26,322 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-18 20:24:26,322 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-18 20:24:26,322 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-18 20:24:26,323 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-18 20:24:26,323 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-18 20:24:26,323 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-11-18 20:24:26,323 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-11-18 20:24:26,323 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-18 20:24:26,323 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-18 20:24:26,323 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-18 20:24:26,324 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-18 20:24:26,324 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-18 20:24:26,324 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-18 20:24:26,324 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-18 20:24:26,324 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-18 20:24:26,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:24:26,324 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-18 20:24:26,324 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-18 20:24:26,325 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-18 20:24:26,325 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-18 20:24:26,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:24:26,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:24:26,612 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:24:26,615 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:24:27,946 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:24:27,961 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:24:27,967 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:24:27,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:24:27 BoogieIcfgContainer [2022-11-18 20:24:27,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:24:27,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:24:27,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:24:27,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:24:27,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:24:24" (1/3) ... [2022-11-18 20:24:27,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6fe264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:24:27, skipping insertion in model container [2022-11-18 20:24:27,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:24:25" (2/3) ... [2022-11-18 20:24:27,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6fe264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:24:27, skipping insertion in model container [2022-11-18 20:24:27,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:24:27" (3/3) ... [2022-11-18 20:24:27,987 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product29.cil.c [2022-11-18 20:24:28,012 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:24:28,012 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:24:28,089 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:24:28,098 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;@151f84a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:24:28,099 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:24:28,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 409 states, 316 states have (on average 1.5537974683544304) internal successors, (491), 321 states have internal predecessors, (491), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2022-11-18 20:24:28,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-18 20:24:28,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:24:28,131 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:24:28,132 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:24:28,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:28,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1913469271, now seen corresponding path program 1 times [2022-11-18 20:24:28,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:28,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350235775] [2022-11-18 20:24:28,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:28,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:28,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:24:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:28,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:24:28,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:28,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:24:28,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:28,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 20:24:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:28,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:24:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:28,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:24:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:28,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 20:24:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:28,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 20:24:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:28,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-18 20:24:28,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:28,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 20:24:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:28,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 20:24:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:28,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-18 20:24:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:28,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:24:28,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:28,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 20:24:28,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:28,957 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-18 20:24:28,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:28,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350235775] [2022-11-18 20:24:28,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350235775] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:24:28,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793927358] [2022-11-18 20:24:28,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:28,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:24:28,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:24:28,965 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:24:28,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:24:29,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:29,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 20:24:29,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:24:29,484 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 20:24:29,493 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:24:29,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793927358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:24:29,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:24:29,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-11-18 20:24:29,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907208938] [2022-11-18 20:24:29,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:24:29,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:24:29,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:29,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:24:29,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:24:29,549 INFO L87 Difference]: Start difference. First operand has 409 states, 316 states have (on average 1.5537974683544304) internal successors, (491), 321 states have internal predecessors, (491), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:24:29,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:24:29,672 INFO L93 Difference]: Finished difference Result 630 states and 932 transitions. [2022-11-18 20:24:29,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:24:29,676 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 110 [2022-11-18 20:24:29,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:24:29,694 INFO L225 Difference]: With dead ends: 630 [2022-11-18 20:24:29,705 INFO L226 Difference]: Without dead ends: 402 [2022-11-18 20:24:29,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:24:29,719 INFO L413 NwaCegarLoop]: 613 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, 613 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 [2022-11-18 20:24:29,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:24:29,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-11-18 20:24:29,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2022-11-18 20:24:29,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 310 states have (on average 1.5483870967741935) internal successors, (480), 314 states have internal predecessors, (480), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-18 20:24:29,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 605 transitions. [2022-11-18 20:24:29,836 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 605 transitions. Word has length 110 [2022-11-18 20:24:29,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:24:29,838 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 605 transitions. [2022-11-18 20:24:29,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:24:29,838 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 605 transitions. [2022-11-18 20:24:29,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-18 20:24:29,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:24:29,855 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:24:29,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:24:30,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-18 20:24:30,059 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:24:30,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:30,060 INFO L85 PathProgramCache]: Analyzing trace with hash -491967672, now seen corresponding path program 1 times [2022-11-18 20:24:30,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:30,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18988810] [2022-11-18 20:24:30,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:30,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:30,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:24:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:30,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:24:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:30,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:24:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:30,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 20:24:30,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:30,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:24:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:30,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:24:30,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:30,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-18 20:24:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:30,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-18 20:24:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:30,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 20:24:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:30,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:24:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:30,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-18 20:24:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:30,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-18 20:24:30,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:30,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:24:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:30,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-18 20:24:30,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:30,617 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-18 20:24:30,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:30,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18988810] [2022-11-18 20:24:30,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18988810] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:24:30,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537282724] [2022-11-18 20:24:30,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:30,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:24:30,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:24:30,625 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:24:30,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:24:30,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:30,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:24:30,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:24:31,014 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 20:24:31,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:24:31,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537282724] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:24:31,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:24:31,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-18 20:24:31,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497181147] [2022-11-18 20:24:31,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:24:31,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:24:31,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:31,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:24:31,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:24:31,023 INFO L87 Difference]: Start difference. First operand 402 states and 605 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:24:31,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:24:31,094 INFO L93 Difference]: Finished difference Result 620 states and 910 transitions. [2022-11-18 20:24:31,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:24:31,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 111 [2022-11-18 20:24:31,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:24:31,111 INFO L225 Difference]: With dead ends: 620 [2022-11-18 20:24:31,112 INFO L226 Difference]: Without dead ends: 405 [2022-11-18 20:24:31,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:24:31,116 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 1 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1204 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 [2022-11-18 20:24:31,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1204 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:24:31,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-11-18 20:24:31,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 404. [2022-11-18 20:24:31,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 312 states have (on average 1.544871794871795) internal successors, (482), 316 states have internal predecessors, (482), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-18 20:24:31,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 607 transitions. [2022-11-18 20:24:31,174 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 607 transitions. Word has length 111 [2022-11-18 20:24:31,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:24:31,177 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 607 transitions. [2022-11-18 20:24:31,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:24:31,180 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 607 transitions. [2022-11-18 20:24:31,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-18 20:24:31,191 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:24:31,197 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:24:31,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:24:31,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:24:31,405 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:24:31,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:31,405 INFO L85 PathProgramCache]: Analyzing trace with hash 31342431, now seen corresponding path program 1 times [2022-11-18 20:24:31,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:31,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630075115] [2022-11-18 20:24:31,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:31,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:31,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:24:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:31,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:24:31,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:31,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:24:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:31,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 20:24:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:31,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:24:31,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:31,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:24:31,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:31,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 20:24:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:31,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 20:24:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:31,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 20:24:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:31,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 20:24:31,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:31,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-18 20:24:31,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:31,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 20:24:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:31,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 20:24:31,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:31,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-18 20:24:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:31,743 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-18 20:24:31,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:31,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630075115] [2022-11-18 20:24:31,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630075115] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:24:31,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475538488] [2022-11-18 20:24:31,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:31,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:24:31,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:24:31,746 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:24:31,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:24:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:32,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 1125 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:24:32,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:24:32,126 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 20:24:32,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:24:32,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475538488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:24:32,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:24:32,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-18 20:24:32,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931819769] [2022-11-18 20:24:32,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:24:32,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:24:32,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:32,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:24:32,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:24:32,132 INFO L87 Difference]: Start difference. First operand 404 states and 607 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:24:32,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:24:32,192 INFO L93 Difference]: Finished difference Result 851 states and 1298 transitions. [2022-11-18 20:24:32,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:24:32,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2022-11-18 20:24:32,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:24:32,197 INFO L225 Difference]: With dead ends: 851 [2022-11-18 20:24:32,197 INFO L226 Difference]: Without dead ends: 474 [2022-11-18 20:24:32,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:24:32,202 INFO L413 NwaCegarLoop]: 627 mSDtfsCounter, 126 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1186 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 [2022-11-18 20:24:32,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1186 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:24:32,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-11-18 20:24:32,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 466. [2022-11-18 20:24:32,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 360 states have (on average 1.5638888888888889) internal successors, (563), 364 states have internal predecessors, (563), 77 states have call successors, (77), 28 states have call predecessors, (77), 28 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2022-11-18 20:24:32,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 716 transitions. [2022-11-18 20:24:32,241 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 716 transitions. Word has length 117 [2022-11-18 20:24:32,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:24:32,242 INFO L495 AbstractCegarLoop]: Abstraction has 466 states and 716 transitions. [2022-11-18 20:24:32,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:24:32,243 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 716 transitions. [2022-11-18 20:24:32,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-18 20:24:32,249 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:24:32,250 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:24:32,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:24:32,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:24:32,459 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:24:32,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:32,460 INFO L85 PathProgramCache]: Analyzing trace with hash -966711120, now seen corresponding path program 1 times [2022-11-18 20:24:32,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:32,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725356011] [2022-11-18 20:24:32,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:32,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:32,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:24:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:32,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:24:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:32,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:24:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:32,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 20:24:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:32,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:24:32,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:32,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:24:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:32,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-18 20:24:32,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:32,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-18 20:24:32,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:32,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 20:24:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:32,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 20:24:32,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:32,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-18 20:24:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:32,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-18 20:24:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:32,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-18 20:24:32,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:32,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 20:24:32,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:32,785 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-18 20:24:32,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:32,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725356011] [2022-11-18 20:24:32,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725356011] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:24:32,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311932963] [2022-11-18 20:24:32,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:32,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:24:32,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:24:32,789 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:24:32,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:24:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:33,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 1132 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:24:33,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:24:33,213 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-18 20:24:33,214 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:24:33,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311932963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:24:33,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:24:33,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-11-18 20:24:33,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464614406] [2022-11-18 20:24:33,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:24:33,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:24:33,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:33,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:24:33,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:24:33,217 INFO L87 Difference]: Start difference. First operand 466 states and 716 transitions. Second operand has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-18 20:24:33,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:24:33,311 INFO L93 Difference]: Finished difference Result 923 states and 1422 transitions. [2022-11-18 20:24:33,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:24:33,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 118 [2022-11-18 20:24:33,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:24:33,316 INFO L225 Difference]: With dead ends: 923 [2022-11-18 20:24:33,316 INFO L226 Difference]: Without dead ends: 468 [2022-11-18 20:24:33,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:24:33,321 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 144 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 2217 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 [2022-11-18 20:24:33,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 2217 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:24:33,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-11-18 20:24:33,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468. [2022-11-18 20:24:33,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 361 states have (on average 1.5623268698060941) internal successors, (564), 366 states have internal predecessors, (564), 77 states have call successors, (77), 28 states have call predecessors, (77), 29 states have return successors, (78), 75 states have call predecessors, (78), 76 states have call successors, (78) [2022-11-18 20:24:33,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 719 transitions. [2022-11-18 20:24:33,352 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 719 transitions. Word has length 118 [2022-11-18 20:24:33,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:24:33,352 INFO L495 AbstractCegarLoop]: Abstraction has 468 states and 719 transitions. [2022-11-18 20:24:33,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-18 20:24:33,353 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 719 transitions. [2022-11-18 20:24:33,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-18 20:24:33,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:24:33,356 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:24:33,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:24:33,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:24:33,568 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:24:33,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:33,569 INFO L85 PathProgramCache]: Analyzing trace with hash -919767989, now seen corresponding path program 1 times [2022-11-18 20:24:33,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:33,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850006871] [2022-11-18 20:24:33,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:33,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:33,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:33,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:24:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:33,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:24:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:33,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:24:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:33,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:24:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:33,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-18 20:24:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:33,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-18 20:24:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:33,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 20:24:33,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:33,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-18 20:24:33,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:33,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:24:33,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:33,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 20:24:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:33,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:24:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:33,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 20:24:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:33,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-18 20:24:33,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:33,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 20:24:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:33,928 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-18 20:24:33,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:33,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850006871] [2022-11-18 20:24:33,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850006871] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:24:33,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281162690] [2022-11-18 20:24:33,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:33,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:24:33,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:24:33,931 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:24:33,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:24:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:34,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 1133 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:24:34,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:24:34,338 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-18 20:24:34,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:24:34,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281162690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:24:34,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:24:34,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-11-18 20:24:34,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767874416] [2022-11-18 20:24:34,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:24:34,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:24:34,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:34,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:24:34,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-11-18 20:24:34,341 INFO L87 Difference]: Start difference. First operand 468 states and 719 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-18 20:24:34,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:24:34,424 INFO L93 Difference]: Finished difference Result 925 states and 1427 transitions. [2022-11-18 20:24:34,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:24:34,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 119 [2022-11-18 20:24:34,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:24:34,427 INFO L225 Difference]: With dead ends: 925 [2022-11-18 20:24:34,427 INFO L226 Difference]: Without dead ends: 470 [2022-11-18 20:24:34,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:24:34,429 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 143 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 2206 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 [2022-11-18 20:24:34,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 2206 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:24:34,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-11-18 20:24:34,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2022-11-18 20:24:34,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 362 states have (on average 1.5607734806629834) internal successors, (565), 368 states have internal predecessors, (565), 77 states have call successors, (77), 28 states have call predecessors, (77), 30 states have return successors, (83), 75 states have call predecessors, (83), 76 states have call successors, (83) [2022-11-18 20:24:34,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 725 transitions. [2022-11-18 20:24:34,475 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 725 transitions. Word has length 119 [2022-11-18 20:24:34,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:24:34,477 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 725 transitions. [2022-11-18 20:24:34,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-18 20:24:34,477 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 725 transitions. [2022-11-18 20:24:34,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-18 20:24:34,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:24:34,482 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:24:34,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:24:34,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:24:34,689 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:24:34,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:34,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1604266393, now seen corresponding path program 1 times [2022-11-18 20:24:34,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:34,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141002941] [2022-11-18 20:24:34,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:34,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:34,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:24:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:34,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:24:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:34,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:24:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:34,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:24:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:34,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:24:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:34,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:24:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:34,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 20:24:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:34,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 20:24:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:34,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-18 20:24:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:34,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-18 20:24:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:34,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 20:24:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:34,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 20:24:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:34,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 20:24:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:34,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-18 20:24:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:34,941 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-18 20:24:34,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:34,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141002941] [2022-11-18 20:24:34,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141002941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:24:34,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:24:34,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 20:24:34,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239605129] [2022-11-18 20:24:34,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:24:34,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 20:24:34,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:34,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 20:24:34,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:24:34,943 INFO L87 Difference]: Start difference. First operand 470 states and 725 transitions. Second operand has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-18 20:24:37,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:24:37,849 INFO L93 Difference]: Finished difference Result 1020 states and 1592 transitions. [2022-11-18 20:24:37,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:24:37,850 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 120 [2022-11-18 20:24:37,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:24:37,856 INFO L225 Difference]: With dead ends: 1020 [2022-11-18 20:24:37,856 INFO L226 Difference]: Without dead ends: 573 [2022-11-18 20:24:37,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:24:37,859 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 1527 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 2521 mSolverCounterSat, 504 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1548 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 3025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 504 IncrementalHoareTripleChecker+Valid, 2521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:24:37,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1548 Valid, 1134 Invalid, 3025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [504 Valid, 2521 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-18 20:24:37,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2022-11-18 20:24:37,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 470. [2022-11-18 20:24:37,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 362 states have (on average 1.5607734806629834) internal successors, (565), 368 states have internal predecessors, (565), 77 states have call successors, (77), 28 states have call predecessors, (77), 30 states have return successors, (82), 75 states have call predecessors, (82), 76 states have call successors, (82) [2022-11-18 20:24:37,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 724 transitions. [2022-11-18 20:24:37,926 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 724 transitions. Word has length 120 [2022-11-18 20:24:37,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:24:37,927 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 724 transitions. [2022-11-18 20:24:37,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-18 20:24:37,927 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 724 transitions. [2022-11-18 20:24:37,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-18 20:24:37,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:24:37,930 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:24:37,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:24:37,931 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:24:37,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:37,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1575919260, now seen corresponding path program 2 times [2022-11-18 20:24:37,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:37,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413299176] [2022-11-18 20:24:37,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:37,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:38,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:24:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:38,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:24:38,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:38,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:24:38,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:38,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:24:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:38,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:24:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:38,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:24:38,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:38,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 20:24:38,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:38,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 20:24:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:38,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-18 20:24:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:38,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:24:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:38,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-18 20:24:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:38,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:24:38,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:38,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-18 20:24:38,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:38,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:24:38,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:38,188 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-18 20:24:38,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:38,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413299176] [2022-11-18 20:24:38,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413299176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:24:38,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:24:38,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 20:24:38,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314943058] [2022-11-18 20:24:38,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:24:38,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 20:24:38,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:38,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 20:24:38,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:24:38,192 INFO L87 Difference]: Start difference. First operand 470 states and 724 transitions. Second operand has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-18 20:24:40,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:24:40,793 INFO L93 Difference]: Finished difference Result 1022 states and 1595 transitions. [2022-11-18 20:24:40,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:24:40,795 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2022-11-18 20:24:40,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:24:40,818 INFO L225 Difference]: With dead ends: 1022 [2022-11-18 20:24:40,819 INFO L226 Difference]: Without dead ends: 575 [2022-11-18 20:24:40,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:24:40,821 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 1507 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 2550 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1528 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 3053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 2550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:24:40,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1528 Valid, 1134 Invalid, 3053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 2550 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-18 20:24:40,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2022-11-18 20:24:40,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 472. [2022-11-18 20:24:40,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 363 states have (on average 1.559228650137741) internal successors, (566), 370 states have internal predecessors, (566), 77 states have call successors, (77), 28 states have call predecessors, (77), 31 states have return successors, (84), 75 states have call predecessors, (84), 76 states have call successors, (84) [2022-11-18 20:24:40,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 727 transitions. [2022-11-18 20:24:40,872 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 727 transitions. Word has length 121 [2022-11-18 20:24:40,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:24:40,872 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 727 transitions. [2022-11-18 20:24:40,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-18 20:24:40,872 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 727 transitions. [2022-11-18 20:24:40,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-18 20:24:40,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:24:40,875 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:24:40,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:24:40,876 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:24:40,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:40,876 INFO L85 PathProgramCache]: Analyzing trace with hash 848855842, now seen corresponding path program 1 times [2022-11-18 20:24:40,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:40,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329423265] [2022-11-18 20:24:40,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:40,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:40,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:41,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:24:41,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:41,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:24:41,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:41,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:24:41,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:41,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:24:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:41,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:24:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:41,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:24:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:41,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 20:24:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:41,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 20:24:41,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:41,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-18 20:24:41,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:41,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-18 20:24:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:41,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-18 20:24:41,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:41,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:24:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:41,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 20:24:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:41,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 20:24:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:41,196 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-18 20:24:41,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:41,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329423265] [2022-11-18 20:24:41,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329423265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:24:41,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:24:41,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 20:24:41,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033593711] [2022-11-18 20:24:41,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:24:41,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 20:24:41,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:41,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:24:41,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:24:41,199 INFO L87 Difference]: Start difference. First operand 472 states and 727 transitions. Second operand has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-11-18 20:24:44,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:24:44,766 INFO L93 Difference]: Finished difference Result 1020 states and 1590 transitions. [2022-11-18 20:24:44,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:24:44,767 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 122 [2022-11-18 20:24:44,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:24:44,771 INFO L225 Difference]: With dead ends: 1020 [2022-11-18 20:24:44,771 INFO L226 Difference]: Without dead ends: 575 [2022-11-18 20:24:44,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-18 20:24:44,774 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 1679 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 4142 mSolverCounterSat, 579 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1679 SdHoareTripleChecker+Valid, 1483 SdHoareTripleChecker+Invalid, 4721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 579 IncrementalHoareTripleChecker+Valid, 4142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:24:44,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1679 Valid, 1483 Invalid, 4721 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [579 Valid, 4142 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-18 20:24:44,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2022-11-18 20:24:44,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 472. [2022-11-18 20:24:44,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 363 states have (on average 1.559228650137741) internal successors, (566), 370 states have internal predecessors, (566), 77 states have call successors, (77), 28 states have call predecessors, (77), 31 states have return successors, (83), 75 states have call predecessors, (83), 76 states have call successors, (83) [2022-11-18 20:24:44,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 726 transitions. [2022-11-18 20:24:44,818 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 726 transitions. Word has length 122 [2022-11-18 20:24:44,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:24:44,818 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 726 transitions. [2022-11-18 20:24:44,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-11-18 20:24:44,818 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 726 transitions. [2022-11-18 20:24:44,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-18 20:24:44,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:24:44,821 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:24:44,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:24:44,821 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:24:44,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:44,822 INFO L85 PathProgramCache]: Analyzing trace with hash 2108958628, now seen corresponding path program 2 times [2022-11-18 20:24:44,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:44,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568291270] [2022-11-18 20:24:44,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:44,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:44,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:24:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:45,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:24:45,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:45,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:24:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:45,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:24:45,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:45,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:24:45,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:45,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:24:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:45,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-18 20:24:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:45,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-18 20:24:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:45,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-18 20:24:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:45,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:24:45,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:45,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 20:24:45,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:45,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-18 20:24:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:45,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-18 20:24:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:45,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-18 20:24:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:45,146 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-18 20:24:45,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:45,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568291270] [2022-11-18 20:24:45,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568291270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:24:45,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:24:45,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 20:24:45,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114665739] [2022-11-18 20:24:45,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:24:45,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 20:24:45,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:45,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:24:45,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:24:45,149 INFO L87 Difference]: Start difference. First operand 472 states and 726 transitions. Second operand has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-11-18 20:24:48,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:24:48,674 INFO L93 Difference]: Finished difference Result 1022 states and 1596 transitions. [2022-11-18 20:24:48,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:24:48,675 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 123 [2022-11-18 20:24:48,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:24:48,680 INFO L225 Difference]: With dead ends: 1022 [2022-11-18 20:24:48,680 INFO L226 Difference]: Without dead ends: 577 [2022-11-18 20:24:48,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-18 20:24:48,683 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 1649 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 4273 mSolverCounterSat, 578 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1649 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 4851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 578 IncrementalHoareTripleChecker+Valid, 4273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:24:48,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1649 Valid, 1484 Invalid, 4851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [578 Valid, 4273 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-18 20:24:48,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-11-18 20:24:48,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 474. [2022-11-18 20:24:48,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 364 states have (on average 1.5576923076923077) internal successors, (567), 372 states have internal predecessors, (567), 77 states have call successors, (77), 28 states have call predecessors, (77), 32 states have return successors, (88), 75 states have call predecessors, (88), 76 states have call successors, (88) [2022-11-18 20:24:48,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 732 transitions. [2022-11-18 20:24:48,737 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 732 transitions. Word has length 123 [2022-11-18 20:24:48,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:24:48,738 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 732 transitions. [2022-11-18 20:24:48,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-11-18 20:24:48,739 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 732 transitions. [2022-11-18 20:24:48,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-18 20:24:48,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:24:48,742 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:24:48,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:24:48,742 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:24:48,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:48,743 INFO L85 PathProgramCache]: Analyzing trace with hash -338816835, now seen corresponding path program 1 times [2022-11-18 20:24:48,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:48,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862652304] [2022-11-18 20:24:48,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:48,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:48,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:24:48,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:48,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:24:48,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:48,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:24:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:48,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:24:48,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:48,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:24:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:48,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:24:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:48,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-18 20:24:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:48,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 20:24:48,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:48,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-18 20:24:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:48,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-18 20:24:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:48,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-18 20:24:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:48,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 20:24:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:48,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-18 20:24:48,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:48,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-18 20:24:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:48,925 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 20:24:48,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:48,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862652304] [2022-11-18 20:24:48,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862652304] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:24:48,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033376094] [2022-11-18 20:24:48,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:48,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:24:48,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:24:48,931 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:24:48,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 20:24:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:49,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 1138 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:24:49,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:24:49,305 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 20:24:49,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:24:49,425 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 20:24:49,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033376094] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:24:49,426 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:24:49,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2022-11-18 20:24:49,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682787987] [2022-11-18 20:24:49,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:24:49,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:24:49,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:49,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:24:49,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:24:49,428 INFO L87 Difference]: Start difference. First operand 474 states and 732 transitions. Second operand has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 7 states have internal predecessors, (120), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-18 20:24:52,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:24:52,980 INFO L93 Difference]: Finished difference Result 1209 states and 1965 transitions. [2022-11-18 20:24:52,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:24:52,981 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 7 states have internal predecessors, (120), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 124 [2022-11-18 20:24:52,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:24:52,988 INFO L225 Difference]: With dead ends: 1209 [2022-11-18 20:24:52,988 INFO L226 Difference]: Without dead ends: 994 [2022-11-18 20:24:52,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:24:52,990 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 1738 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 3623 mSolverCounterSat, 693 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1792 SdHoareTripleChecker+Valid, 1909 SdHoareTripleChecker+Invalid, 4316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 693 IncrementalHoareTripleChecker+Valid, 3623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:24:52,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1792 Valid, 1909 Invalid, 4316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [693 Valid, 3623 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-18 20:24:52,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2022-11-18 20:24:53,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 867. [2022-11-18 20:24:53,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 678 states have (on average 1.6224188790560472) internal successors, (1100), 686 states have internal predecessors, (1100), 156 states have call successors, (156), 28 states have call predecessors, (156), 32 states have return successors, (177), 154 states have call predecessors, (177), 155 states have call successors, (177) [2022-11-18 20:24:53,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1433 transitions. [2022-11-18 20:24:53,098 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1433 transitions. Word has length 124 [2022-11-18 20:24:53,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:24:53,098 INFO L495 AbstractCegarLoop]: Abstraction has 867 states and 1433 transitions. [2022-11-18 20:24:53,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 7 states have internal predecessors, (120), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-18 20:24:53,099 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1433 transitions. [2022-11-18 20:24:53,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-18 20:24:53,104 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:24:53,104 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, 1, 1, 1] [2022-11-18 20:24:53,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:24:53,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d53a549-ea07-4a2b-bffc-559f03ea308c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 20:24:53,311 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:24:53,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:53,312 INFO L85 PathProgramCache]: Analyzing trace with hash 356156352, now seen corresponding path program 1 times [2022-11-18 20:24:53,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:53,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618309852] [2022-11-18 20:24:53,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:53,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:53,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:24:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:53,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:24:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:53,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:24:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:53,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:24:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:53,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:24:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:53,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:24:53,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:53,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 20:24:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:53,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-18 20:24:53,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:53,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-18 20:24:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:53,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-18 20:24:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:53,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 20:24:53,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:53,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-18 20:24:53,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:53,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-18 20:24:53,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:53,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 20:24:53,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:53,491 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 20:24:53,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:53,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618309852] [2022-11-18 20:24:53,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618309852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:24:53,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:24:53,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:24:53,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667497590] [2022-11-18 20:24:53,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:24:53,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:24:53,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:53,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:24:53,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:24:53,494 INFO L87 Difference]: Start difference. First operand 867 states and 1433 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:24:55,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:24:55,637 INFO L93 Difference]: Finished difference Result 2167 states and 3670 transitions. [2022-11-18 20:24:55,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:24:55,638 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2022-11-18 20:24:55,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:24:55,646 INFO L225 Difference]: With dead ends: 2167 [2022-11-18 20:24:55,646 INFO L226 Difference]: Without dead ends: 1368 [2022-11-18 20:24:55,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:24:55,650 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 1487 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 1516 mSolverCounterSat, 583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 2099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 583 IncrementalHoareTripleChecker+Valid, 1516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:24:55,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1018 Invalid, 2099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [583 Valid, 1516 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-18 20:24:55,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2022-11-18 20:24:55,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1257. [2022-11-18 20:24:55,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 989 states have (on average 1.6380182002022246) internal successors, (1620), 997 states have internal predecessors, (1620), 235 states have call successors, (235), 28 states have call predecessors, (235), 32 states have return successors, (266), 233 states have call predecessors, (266), 234 states have call successors, (266) [2022-11-18 20:24:55,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2121 transitions. [2022-11-18 20:24:55,787 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2121 transitions. Word has length 130 [2022-11-18 20:24:55,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:24:55,788 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 2121 transitions. [2022-11-18 20:24:55,788 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:24:55,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2121 transitions. [2022-11-18 20:24:55,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-18 20:24:55,796 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:24:55,796 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, 1, 1, 1, 1] [2022-11-18 20:24:55,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:24:55,796 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:24:55,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:55,797 INFO L85 PathProgramCache]: Analyzing trace with hash 366727282, now seen corresponding path program 1 times [2022-11-18 20:24:55,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:55,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666183080] [2022-11-18 20:24:55,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:55,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:55,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:24:55,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:55,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:24:55,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:55,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:24:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:55,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:24:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:55,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:24:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:55,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:24:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:55,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 20:24:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:55,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-18 20:24:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:55,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:24:55,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:55,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-18 20:24:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:55,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 20:24:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:55,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 20:24:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:55,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-18 20:24:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:55,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-18 20:24:55,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:55,923 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 20:24:55,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:55,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666183080] [2022-11-18 20:24:55,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666183080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:24:55,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:24:55,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:24:55,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101417323] [2022-11-18 20:24:55,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:24:55,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:24:55,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:55,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:24:55,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:24:55,926 INFO L87 Difference]: Start difference. First operand 1257 states and 2121 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:24:58,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:24:58,075 INFO L93 Difference]: Finished difference Result 3116 states and 5344 transitions. [2022-11-18 20:24:58,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:24:58,076 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2022-11-18 20:24:58,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:24:58,088 INFO L225 Difference]: With dead ends: 3116 [2022-11-18 20:24:58,089 INFO L226 Difference]: Without dead ends: 1980 [2022-11-18 20:24:58,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:24:58,095 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 1506 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 2066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 597 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:24:58,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 958 Invalid, 2066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [597 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-18 20:24:58,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1980 states. [2022-11-18 20:24:58,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1980 to 1869. [2022-11-18 20:24:58,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1869 states, 1482 states have (on average 1.6484480431848854) internal successors, (2443), 1490 states have internal predecessors, (2443), 354 states have call successors, (354), 28 states have call predecessors, (354), 32 states have return successors, (385), 352 states have call predecessors, (385), 353 states have call successors, (385) [2022-11-18 20:24:58,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1869 states to 1869 states and 3182 transitions. [2022-11-18 20:24:58,289 INFO L78 Accepts]: Start accepts. Automaton has 1869 states and 3182 transitions. Word has length 131 [2022-11-18 20:24:58,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:24:58,290 INFO L495 AbstractCegarLoop]: Abstraction has 1869 states and 3182 transitions. [2022-11-18 20:24:58,290 INFO L496 AbstractCegarLoop]: INTERPOLANT 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:24:58,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1869 states and 3182 transitions. [2022-11-18 20:24:58,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-18 20:24:58,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:24:58,302 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, 1, 1, 1, 1, 1] [2022-11-18 20:24:58,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:24:58,303 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:24:58,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:58,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1668270942, now seen corresponding path program 1 times [2022-11-18 20:24:58,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:58,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336091560] [2022-11-18 20:24:58,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:58,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:58,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:58,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:24:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:58,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:24:58,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:58,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:24:58,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:58,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:24:58,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:58,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:24:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:58,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:24:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:58,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 20:24:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:58,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-18 20:24:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:58,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-18 20:24:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:58,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 20:24:58,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:58,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-18 20:24:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:58,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-18 20:24:58,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:58,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-18 20:24:58,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:58,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 20:24:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:58,484 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 20:24:58,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:58,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336091560] [2022-11-18 20:24:58,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336091560] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:24:58,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:24:58,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:24:58,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371497573] [2022-11-18 20:24:58,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:24:58,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:24:58,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:58,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:24:58,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:24:58,487 INFO L87 Difference]: Start difference. First operand 1869 states and 3182 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:25:00,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:25:00,715 INFO L93 Difference]: Finished difference Result 4541 states and 7878 transitions. [2022-11-18 20:25:00,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:25:00,716 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2022-11-18 20:25:00,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:25:00,734 INFO L225 Difference]: With dead ends: 4541 [2022-11-18 20:25:00,735 INFO L226 Difference]: Without dead ends: 2918 [2022-11-18 20:25:00,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:25:00,743 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 1542 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 601 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1561 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 601 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:25:00,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1561 Valid, 953 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [601 Valid, 1439 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-18 20:25:00,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2918 states. [2022-11-18 20:25:01,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2918 to 2807. [2022-11-18 20:25:01,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2807 states, 2258 states have (on average 1.6567759078830824) internal successors, (3741), 2266 states have internal predecessors, (3741), 516 states have call successors, (516), 28 states have call predecessors, (516), 32 states have return successors, (563), 514 states have call predecessors, (563), 515 states have call successors, (563) [2022-11-18 20:25:01,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2807 states to 2807 states and 4820 transitions. [2022-11-18 20:25:01,031 INFO L78 Accepts]: Start accepts. Automaton has 2807 states and 4820 transitions. Word has length 132 [2022-11-18 20:25:01,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:25:01,032 INFO L495 AbstractCegarLoop]: Abstraction has 2807 states and 4820 transitions. [2022-11-18 20:25:01,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:25:01,032 INFO L276 IsEmpty]: Start isEmpty. Operand 2807 states and 4820 transitions. [2022-11-18 20:25:01,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-18 20:25:01,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:25:01,047 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, 1, 1, 1, 1, 1, 1] [2022-11-18 20:25:01,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:25:01,047 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:25:01,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:25:01,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1177919247, now seen corresponding path program 1 times [2022-11-18 20:25:01,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:25:01,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480333856] [2022-11-18 20:25:01,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:25:01,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:25:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:01,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:25:01,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:01,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:25:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:01,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:25:01,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:01,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:25:01,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:01,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:25:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:01,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:25:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:01,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:25:01,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:01,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-18 20:25:01,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:01,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-18 20:25:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:01,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-18 20:25:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:01,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-18 20:25:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:01,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 20:25:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:01,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 20:25:01,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:01,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-18 20:25:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:01,178 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 20:25:01,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:25:01,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480333856] [2022-11-18 20:25:01,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480333856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:25:01,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:25:01,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:25:01,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247873916] [2022-11-18 20:25:01,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:25:01,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:25:01,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:25:01,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:25:01,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:25:01,181 INFO L87 Difference]: Start difference. First operand 2807 states and 4820 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:25:03,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:25:03,526 INFO L93 Difference]: Finished difference Result 6790 states and 11887 transitions. [2022-11-18 20:25:03,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:25:03,527 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2022-11-18 20:25:03,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:25:03,552 INFO L225 Difference]: With dead ends: 6790 [2022-11-18 20:25:03,553 INFO L226 Difference]: Without dead ends: 4433 [2022-11-18 20:25:03,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:25:03,561 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 1529 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 1441 mSolverCounterSat, 600 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1548 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 600 IncrementalHoareTripleChecker+Valid, 1441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:25:03,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1548 Valid, 953 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [600 Valid, 1441 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-18 20:25:03,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4433 states. [2022-11-18 20:25:03,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4433 to 4322. [2022-11-18 20:25:03,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4322 states, 3528 states have (on average 1.6626984126984128) internal successors, (5866), 3536 states have internal predecessors, (5866), 761 states have call successors, (761), 28 states have call predecessors, (761), 32 states have return successors, (834), 759 states have call predecessors, (834), 760 states have call successors, (834) [2022-11-18 20:25:03,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4322 states to 4322 states and 7461 transitions. [2022-11-18 20:25:03,996 INFO L78 Accepts]: Start accepts. Automaton has 4322 states and 7461 transitions. Word has length 133 [2022-11-18 20:25:03,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:25:03,997 INFO L495 AbstractCegarLoop]: Abstraction has 4322 states and 7461 transitions. [2022-11-18 20:25:03,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:25:03,997 INFO L276 IsEmpty]: Start isEmpty. Operand 4322 states and 7461 transitions. [2022-11-18 20:25:04,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-18 20:25:04,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:25:04,017 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:25:04,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:25:04,017 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:25:04,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:25:04,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1715203874, now seen corresponding path program 1 times [2022-11-18 20:25:04,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:25:04,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639019160] [2022-11-18 20:25:04,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:25:04,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:25:04,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:04,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:25:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:04,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:25:04,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:04,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:25:04,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:04,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:25:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:04,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:25:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:04,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:25:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:04,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-18 20:25:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:04,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 20:25:04,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:04,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-18 20:25:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:04,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 20:25:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:04,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 20:25:04,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:04,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-18 20:25:04,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:04,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-18 20:25:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:04,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-18 20:25:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:04,156 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 20:25:04,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:25:04,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639019160] [2022-11-18 20:25:04,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639019160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:25:04,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:25:04,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:25:04,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829751564] [2022-11-18 20:25:04,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:25:04,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:25:04,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:25:04,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:25:04,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:25:04,159 INFO L87 Difference]: Start difference. First operand 4322 states and 7461 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:25:06,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:25:06,866 INFO L93 Difference]: Finished difference Result 10806 states and 18999 transitions. [2022-11-18 20:25:06,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:25:06,867 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2022-11-18 20:25:06,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:25:06,919 INFO L225 Difference]: With dead ends: 10806 [2022-11-18 20:25:06,919 INFO L226 Difference]: Without dead ends: 7166 [2022-11-18 20:25:06,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:25:06,936 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1520 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 1445 mSolverCounterSat, 608 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 2053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 608 IncrementalHoareTripleChecker+Valid, 1445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-18 20:25:06,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1539 Valid, 975 Invalid, 2053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [608 Valid, 1445 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-18 20:25:06,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7166 states. [2022-11-18 20:25:07,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7166 to 7055. [2022-11-18 20:25:07,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7055 states, 5768 states have (on average 1.6593273231622747) internal successors, (9571), 5776 states have internal predecessors, (9571), 1254 states have call successors, (1254), 28 states have call predecessors, (1254), 32 states have return successors, (1371), 1252 states have call predecessors, (1371), 1253 states have call successors, (1371) [2022-11-18 20:25:07,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7055 states to 7055 states and 12196 transitions. [2022-11-18 20:25:07,837 INFO L78 Accepts]: Start accepts. Automaton has 7055 states and 12196 transitions. Word has length 134 [2022-11-18 20:25:07,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:25:07,838 INFO L495 AbstractCegarLoop]: Abstraction has 7055 states and 12196 transitions. [2022-11-18 20:25:07,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:25:07,840 INFO L276 IsEmpty]: Start isEmpty. Operand 7055 states and 12196 transitions. [2022-11-18 20:25:07,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-18 20:25:07,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:25:07,873 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:25:07,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:25:07,874 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:25:07,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:25:07,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1533216467, now seen corresponding path program 1 times [2022-11-18 20:25:07,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:25:07,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951611871] [2022-11-18 20:25:07,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:25:07,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:25:07,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:07,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:25:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:08,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:25:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:08,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:25:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:08,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:25:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:08,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:25:08,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:08,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:25:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:08,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-18 20:25:08,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:08,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 20:25:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:08,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-18 20:25:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:08,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 20:25:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:08,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-18 20:25:08,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:08,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-18 20:25:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:08,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:25:08,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:08,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-18 20:25:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:08,075 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 20:25:08,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:25:08,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951611871] [2022-11-18 20:25:08,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951611871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:25:08,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:25:08,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:25:08,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647048160] [2022-11-18 20:25:08,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:25:08,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:25:08,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:25:08,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:25:08,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:25:08,080 INFO L87 Difference]: Start difference. First operand 7055 states and 12196 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:25:11,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:25:11,176 INFO L93 Difference]: Finished difference Result 17946 states and 31571 transitions. [2022-11-18 20:25:11,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:25:11,177 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2022-11-18 20:25:11,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:25:11,224 INFO L225 Difference]: With dead ends: 17946 [2022-11-18 20:25:11,225 INFO L226 Difference]: Without dead ends: 11950 [2022-11-18 20:25:11,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:25:11,246 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 1502 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 1482 mSolverCounterSat, 597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 2079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 597 IncrementalHoareTripleChecker+Valid, 1482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:25:11,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 956 Invalid, 2079 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [597 Valid, 1482 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-18 20:25:11,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11950 states. [2022-11-18 20:25:12,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11950 to 11839. [2022-11-18 20:25:12,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11839 states, 9730 states have (on average 1.6597122302158274) internal successors, (16149), 9738 states have internal predecessors, (16149), 2076 states have call successors, (2076), 28 states have call predecessors, (2076), 32 states have return successors, (2271), 2074 states have call predecessors, (2271), 2075 states have call successors, (2271) [2022-11-18 20:25:12,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11839 states to 11839 states and 20496 transitions. [2022-11-18 20:25:12,309 INFO L78 Accepts]: Start accepts. Automaton has 11839 states and 20496 transitions. Word has length 135 [2022-11-18 20:25:12,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:25:12,310 INFO L495 AbstractCegarLoop]: Abstraction has 11839 states and 20496 transitions. [2022-11-18 20:25:12,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:25:12,310 INFO L276 IsEmpty]: Start isEmpty. Operand 11839 states and 20496 transitions. [2022-11-18 20:25:12,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-18 20:25:12,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:25:12,347 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:25:12,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 20:25:12,347 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:25:12,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:25:12,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1363427552, now seen corresponding path program 1 times [2022-11-18 20:25:12,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:25:12,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991383752] [2022-11-18 20:25:12,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:25:12,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:25:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:12,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:25:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:12,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:25:12,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:12,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:25:12,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:12,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:25:12,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:12,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:25:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:12,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:25:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:12,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-18 20:25:12,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:12,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 20:25:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:12,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:25:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:12,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:25:12,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:12,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-18 20:25:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:12,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 20:25:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:12,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-18 20:25:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:12,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-18 20:25:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:12,479 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 20:25:12,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:25:12,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991383752] [2022-11-18 20:25:12,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991383752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:25:12,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:25:12,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:25:12,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901967505] [2022-11-18 20:25:12,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:25:12,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:25:12,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:25:12,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:25:12,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:25:12,483 INFO L87 Difference]: Start difference. First operand 11839 states and 20496 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:25:16,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:25:16,218 INFO L93 Difference]: Finished difference Result 28379 states and 49696 transitions. [2022-11-18 20:25:16,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:25:16,219 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 136 [2022-11-18 20:25:16,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:25:16,301 INFO L225 Difference]: With dead ends: 28379 [2022-11-18 20:25:16,301 INFO L226 Difference]: Without dead ends: 18543 [2022-11-18 20:25:16,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:25:16,334 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 1533 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 1420 mSolverCounterSat, 597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1551 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 2017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 597 IncrementalHoareTripleChecker+Valid, 1420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-18 20:25:16,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1551 Valid, 924 Invalid, 2017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [597 Valid, 1420 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-18 20:25:16,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18543 states. [2022-11-18 20:25:18,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18543 to 18432. [2022-11-18 20:25:18,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18432 states, 15120 states have (on average 1.634589947089947) internal successors, (24715), 15128 states have internal predecessors, (24715), 3279 states have call successors, (3279), 28 states have call predecessors, (3279), 32 states have return successors, (3618), 3277 states have call predecessors, (3618), 3278 states have call successors, (3618) [2022-11-18 20:25:18,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18432 states to 18432 states and 31612 transitions. [2022-11-18 20:25:18,189 INFO L78 Accepts]: Start accepts. Automaton has 18432 states and 31612 transitions. Word has length 136 [2022-11-18 20:25:18,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:25:18,190 INFO L495 AbstractCegarLoop]: Abstraction has 18432 states and 31612 transitions. [2022-11-18 20:25:18,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:25:18,190 INFO L276 IsEmpty]: Start isEmpty. Operand 18432 states and 31612 transitions. [2022-11-18 20:25:18,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-18 20:25:18,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:25:18,222 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:25:18,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 20:25:18,222 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:25:18,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:25:18,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1582070284, now seen corresponding path program 1 times [2022-11-18 20:25:18,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:25:18,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944246189] [2022-11-18 20:25:18,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:25:18,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:25:18,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:18,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:25:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:18,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:25:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:18,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:25:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:18,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:25:18,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:18,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:25:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:18,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:25:18,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:18,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-18 20:25:18,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:18,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-18 20:25:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:18,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 20:25:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:18,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:25:18,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:18,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 20:25:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:18,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 20:25:18,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:18,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 20:25:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:18,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-18 20:25:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:18,346 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 20:25:18,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:25:18,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944246189] [2022-11-18 20:25:18,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944246189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:25:18,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:25:18,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:25:18,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435856268] [2022-11-18 20:25:18,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:25:18,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:25:18,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:25:18,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:25:18,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:25:18,349 INFO L87 Difference]: Start difference. First operand 18432 states and 31612 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:25:23,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:25:23,584 INFO L93 Difference]: Finished difference Result 48801 states and 85200 transitions. [2022-11-18 20:25:23,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:25:23,584 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 137 [2022-11-18 20:25:23,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:25:23,762 INFO L225 Difference]: With dead ends: 48801 [2022-11-18 20:25:23,762 INFO L226 Difference]: Without dead ends: 32979 [2022-11-18 20:25:23,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:25:23,817 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 1486 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 2077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:25:23,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 956 Invalid, 2077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-18 20:25:23,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32979 states. [2022-11-18 20:25:28,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32979 to 32868. [2022-11-18 20:25:28,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32868 states, 27106 states have (on average 1.6314469121227773) internal successors, (44222), 27114 states have internal predecessors, (44222), 5729 states have call successors, (5729), 28 states have call predecessors, (5729), 32 states have return successors, (6342), 5727 states have call predecessors, (6342), 5728 states have call successors, (6342) [2022-11-18 20:25:28,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32868 states to 32868 states and 56293 transitions. [2022-11-18 20:25:28,518 INFO L78 Accepts]: Start accepts. Automaton has 32868 states and 56293 transitions. Word has length 137 [2022-11-18 20:25:28,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:25:28,518 INFO L495 AbstractCegarLoop]: Abstraction has 32868 states and 56293 transitions. [2022-11-18 20:25:28,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:25:28,519 INFO L276 IsEmpty]: Start isEmpty. Operand 32868 states and 56293 transitions. [2022-11-18 20:25:28,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-18 20:25:28,570 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:25:28,571 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:25:28,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 20:25:28,571 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:25:28,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:25:28,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1440653178, now seen corresponding path program 1 times [2022-11-18 20:25:28,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:25:28,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529483102] [2022-11-18 20:25:28,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:25:28,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:25:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:28,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:25:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:28,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:25:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:28,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:25:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:28,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:25:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:28,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:25:28,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:28,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:25:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:28,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-18 20:25:28,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:28,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:25:28,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:28,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-18 20:25:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:28,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-18 20:25:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:28,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-18 20:25:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:28,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-18 20:25:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:28,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-18 20:25:28,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:28,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-18 20:25:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:28,732 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 20:25:28,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:25:28,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529483102] [2022-11-18 20:25:28,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529483102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:25:28,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:25:28,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:25:28,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126793150] [2022-11-18 20:25:28,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:25:28,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:25:28,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:25:28,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:25:28,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:25:28,737 INFO L87 Difference]: Start difference. First operand 32868 states and 56293 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:25:38,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:25:38,738 INFO L93 Difference]: Finished difference Result 89698 states and 155834 transitions. [2022-11-18 20:25:38,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:25:38,738 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2022-11-18 20:25:38,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:25:39,057 INFO L225 Difference]: With dead ends: 89698 [2022-11-18 20:25:39,057 INFO L226 Difference]: Without dead ends: 60316 [2022-11-18 20:25:39,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:25:39,164 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 1522 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 594 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1542 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 2042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 594 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:25:39,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1542 Valid, 991 Invalid, 2042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [594 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-18 20:25:39,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60316 states. [2022-11-18 20:25:45,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60316 to 60205. [2022-11-18 20:25:45,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60205 states, 49930 states have (on average 1.6271780492689765) internal successors, (81245), 49938 states have internal predecessors, (81245), 10242 states have call successors, (10242), 28 states have call predecessors, (10242), 32 states have return successors, (11387), 10240 states have call predecessors, (11387), 10241 states have call successors, (11387) [2022-11-18 20:25:46,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60205 states to 60205 states and 102874 transitions. [2022-11-18 20:25:46,592 INFO L78 Accepts]: Start accepts. Automaton has 60205 states and 102874 transitions. Word has length 138 [2022-11-18 20:25:46,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:25:46,592 INFO L495 AbstractCegarLoop]: Abstraction has 60205 states and 102874 transitions. [2022-11-18 20:25:46,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:25:46,593 INFO L276 IsEmpty]: Start isEmpty. Operand 60205 states and 102874 transitions. [2022-11-18 20:25:46,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-18 20:25:46,658 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:25:46,658 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:25:46,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 20:25:46,659 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:25:46,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:25:46,660 INFO L85 PathProgramCache]: Analyzing trace with hash -711063828, now seen corresponding path program 1 times [2022-11-18 20:25:46,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:25:46,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445122844] [2022-11-18 20:25:46,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:25:46,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:25:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:46,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:25:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:46,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:25:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:46,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:25:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:46,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:25:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:46,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:25:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:46,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:25:46,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:46,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 20:25:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:46,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-18 20:25:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:46,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-18 20:25:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:46,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 20:25:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:46,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 20:25:46,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:46,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:25:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:46,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 20:25:46,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:46,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 20:25:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:46,826 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 20:25:46,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:25:46,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445122844] [2022-11-18 20:25:46,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445122844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:25:46,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:25:46,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:25:46,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925772324] [2022-11-18 20:25:46,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:25:46,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:25:46,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:25:46,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:25:46,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:25:46,830 INFO L87 Difference]: Start difference. First operand 60205 states and 102874 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:25:59,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:25:59,925 INFO L93 Difference]: Finished difference Result 112789 states and 196412 transitions. [2022-11-18 20:25:59,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:25:59,926 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 139 [2022-11-18 20:25:59,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:26:00,567 INFO L225 Difference]: With dead ends: 112789 [2022-11-18 20:26:00,567 INFO L226 Difference]: Without dead ends: 112574