./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product14.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa --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 7bf93f828cd20929ce9c5f311b0e320b3840eed4f400e7f2f8e12c9cdbceb4d2 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:12:45,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:12:45,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:12:45,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:12:45,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:12:45,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:12:45,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:12:45,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:12:45,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:12:45,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:12:45,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:12:45,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:12:45,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:12:45,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:12:45,930 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:12:45,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:12:45,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:12:45,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:12:45,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:12:45,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:12:45,937 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:12:45,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:12:45,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:12:45,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:12:45,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:12:45,944 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:12:45,944 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:12:45,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:12:45,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:12:45,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:12:45,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:12:45,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:12:45,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:12:45,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:12:45,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:12:45,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:12:45,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:12:45,950 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:12:45,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:12:45,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:12:45,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:12:45,953 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 17:12:45,970 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:12:45,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:12:45,970 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:12:45,971 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:12:45,971 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:12:45,971 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:12:45,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:12:45,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:12:45,972 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:12:45,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:12:45,972 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 17:12:45,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:12:45,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 17:12:45,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:12:45,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 17:12:45,973 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:12:45,973 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 17:12:45,973 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 17:12:45,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:12:45,973 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:12:45,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 17:12:45,974 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:12:45,974 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:12:45,974 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:12:45,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:12:45,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:12:45,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:12:45,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 17:12:45,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:12:45,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 17:12:45,975 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 17:12:45,975 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 17:12:45,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 17:12:45,975 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:12:45,975 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_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bf93f828cd20929ce9c5f311b0e320b3840eed4f400e7f2f8e12c9cdbceb4d2 [2021-12-06 17:12:46,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:12:46,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:12:46,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:12:46,165 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:12:46,166 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:12:46,167 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/product-lines/email_spec1_product14.cil.c [2021-12-06 17:12:46,213 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/data/52e23e611/6b15eea9391f40039e9eabad5b66ced0/FLAGd89934395 [2021-12-06 17:12:46,674 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:12:46,674 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/sv-benchmarks/c/product-lines/email_spec1_product14.cil.c [2021-12-06 17:12:46,690 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/data/52e23e611/6b15eea9391f40039e9eabad5b66ced0/FLAGd89934395 [2021-12-06 17:12:46,701 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/data/52e23e611/6b15eea9391f40039e9eabad5b66ced0 [2021-12-06 17:12:46,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:12:46,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:12:46,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:12:46,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:12:46,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:12:46,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:12:46" (1/1) ... [2021-12-06 17:12:46,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c55ad72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:46, skipping insertion in model container [2021-12-06 17:12:46,710 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:12:46" (1/1) ... [2021-12-06 17:12:46,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:12:46,761 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:12:47,067 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/sv-benchmarks/c/product-lines/email_spec1_product14.cil.c[62671,62684] [2021-12-06 17:12:47,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:12:47,077 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:12:47,153 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/sv-benchmarks/c/product-lines/email_spec1_product14.cil.c[62671,62684] [2021-12-06 17:12:47,154 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:12:47,177 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:12:47,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:47 WrapperNode [2021-12-06 17:12:47,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:12:47,178 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:12:47,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:12:47,179 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:12:47,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:47" (1/1) ... [2021-12-06 17:12:47,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:47" (1/1) ... [2021-12-06 17:12:47,241 INFO L137 Inliner]: procedures = 125, calls = 205, calls flagged for inlining = 50, calls inlined = 42, statements flattened = 889 [2021-12-06 17:12:47,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:12:47,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:12:47,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:12:47,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:12:47,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:47" (1/1) ... [2021-12-06 17:12:47,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:47" (1/1) ... [2021-12-06 17:12:47,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:47" (1/1) ... [2021-12-06 17:12:47,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:47" (1/1) ... [2021-12-06 17:12:47,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:47" (1/1) ... [2021-12-06 17:12:47,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:47" (1/1) ... [2021-12-06 17:12:47,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:47" (1/1) ... [2021-12-06 17:12:47,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:12:47,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:12:47,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:12:47,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:12:47,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:47" (1/1) ... [2021-12-06 17:12:47,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:12:47,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:12:47,313 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:12:47,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:12:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-06 17:12:47,343 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-06 17:12:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-06 17:12:47,343 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-06 17:12:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-06 17:12:47,343 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-06 17:12:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-06 17:12:47,344 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-06 17:12:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-06 17:12:47,344 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-06 17:12:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-06 17:12:47,344 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-06 17:12:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-06 17:12:47,344 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-06 17:12:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-06 17:12:47,344 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-06 17:12:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-06 17:12:47,344 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-06 17:12:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-06 17:12:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-06 17:12:47,345 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-06 17:12:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:12:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-06 17:12:47,345 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-06 17:12:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-06 17:12:47,345 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-06 17:12:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-06 17:12:47,345 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-06 17:12:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-06 17:12:47,345 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-06 17:12:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2021-12-06 17:12:47,346 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2021-12-06 17:12:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-06 17:12:47,346 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-06 17:12:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-06 17:12:47,346 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-06 17:12:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-06 17:12:47,346 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-06 17:12:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-06 17:12:47,346 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-06 17:12:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 17:12:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-06 17:12:47,346 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-06 17:12:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-06 17:12:47,346 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-06 17:12:47,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:12:47,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:12:47,477 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:12:47,478 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:12:47,884 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:12:47,891 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:12:47,892 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 17:12:47,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:12:47 BoogieIcfgContainer [2021-12-06 17:12:47,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:12:47,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:12:47,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:12:47,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:12:47,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:12:46" (1/3) ... [2021-12-06 17:12:47,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3da150ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:12:47, skipping insertion in model container [2021-12-06 17:12:47,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:47" (2/3) ... [2021-12-06 17:12:47,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3da150ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:12:47, skipping insertion in model container [2021-12-06 17:12:47,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:12:47" (3/3) ... [2021-12-06 17:12:47,899 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec1_product14.cil.c [2021-12-06 17:12:47,903 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:12:47,903 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 17:12:47,939 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:12:47,944 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 17:12:47,944 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 17:12:47,962 INFO L276 IsEmpty]: Start isEmpty. Operand has 342 states, 267 states have (on average 1.5880149812734083) internal successors, (424), 272 states have internal predecessors, (424), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2021-12-06 17:12:47,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 17:12:47,976 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:12:47,977 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:12:47,978 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:12:47,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:12:47,981 INFO L85 PathProgramCache]: Analyzing trace with hash -156634383, now seen corresponding path program 1 times [2021-12-06 17:12:47,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:12:47,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149996789] [2021-12-06 17:12:47,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:12:47,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:12:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:48,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:12:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:48,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:12:48,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:48,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:12:48,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:48,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 17:12:48,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:48,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-06 17:12:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:48,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 17:12:48,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:48,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 17:12:48,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:48,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 17:12:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:48,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 17:12:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:48,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-06 17:12:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:48,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 17:12:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:48,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 17:12:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:48,363 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 17:12:48,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:12:48,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149996789] [2021-12-06 17:12:48,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149996789] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:12:48,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933009013] [2021-12-06 17:12:48,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:12:48,365 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:12:48,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:12:48,367 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:12:48,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 17:12:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:48,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-06 17:12:48,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:12:48,722 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-06 17:12:48,722 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:12:48,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933009013] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:12:48,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:12:48,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-06 17:12:48,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600040834] [2021-12-06 17:12:48,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:12:48,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 17:12:48,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:12:48,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 17:12:48,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:12:48,754 INFO L87 Difference]: Start difference. First operand has 342 states, 267 states have (on average 1.5880149812734083) internal successors, (424), 272 states have internal predecessors, (424), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:12:48,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:12:48,806 INFO L93 Difference]: Finished difference Result 496 states and 754 transitions. [2021-12-06 17:12:48,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 17:12:48,808 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2021-12-06 17:12:48,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:12:48,819 INFO L225 Difference]: With dead ends: 496 [2021-12-06 17:12:48,819 INFO L226 Difference]: Without dead ends: 335 [2021-12-06 17:12:48,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:12:48,825 INFO L933 BasicCegarLoop]: 524 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, 524 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 [2021-12-06 17:12:48,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:12:48,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2021-12-06 17:12:48,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2021-12-06 17:12:48,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 261 states have (on average 1.582375478927203) internal successors, (413), 265 states have internal predecessors, (413), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2021-12-06 17:12:48,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 516 transitions. [2021-12-06 17:12:48,878 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 516 transitions. Word has length 98 [2021-12-06 17:12:48,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:12:48,879 INFO L470 AbstractCegarLoop]: Abstraction has 335 states and 516 transitions. [2021-12-06 17:12:48,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:12:48,884 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 516 transitions. [2021-12-06 17:12:48,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-06 17:12:48,890 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:12:48,890 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:12:48,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 17:12:49,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-06 17:12:49,093 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:12:49,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:12:49,095 INFO L85 PathProgramCache]: Analyzing trace with hash 233231985, now seen corresponding path program 1 times [2021-12-06 17:12:49,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:12:49,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299568250] [2021-12-06 17:12:49,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:12:49,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:12:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:49,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:12:49,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:49,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:12:49,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:49,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:12:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:49,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 17:12:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:49,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-06 17:12:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:49,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 17:12:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:49,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-06 17:12:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:49,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 17:12:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:49,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 17:12:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:49,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 17:12:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:49,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 17:12:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:49,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 17:12:49,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:49,330 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 17:12:49,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:12:49,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299568250] [2021-12-06 17:12:49,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299568250] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:12:49,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840753397] [2021-12-06 17:12:49,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:12:49,331 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:12:49,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:12:49,332 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:12:49,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 17:12:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:49,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 987 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:12:49,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:12:49,567 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-06 17:12:49,568 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:12:49,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840753397] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:12:49,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:12:49,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-06 17:12:49,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655208134] [2021-12-06 17:12:49,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:12:49,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:12:49,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:12:49,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:12:49,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 17:12:49,570 INFO L87 Difference]: Start difference. First operand 335 states and 516 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:12:49,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:12:49,596 INFO L93 Difference]: Finished difference Result 486 states and 732 transitions. [2021-12-06 17:12:49,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:12:49,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 99 [2021-12-06 17:12:49,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:12:49,600 INFO L225 Difference]: With dead ends: 486 [2021-12-06 17:12:49,600 INFO L226 Difference]: Without dead ends: 338 [2021-12-06 17:12:49,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 17:12:49,603 INFO L933 BasicCegarLoop]: 514 mSDtfsCounter, 1 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1026 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 [2021-12-06 17:12:49,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1026 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:12:49,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2021-12-06 17:12:49,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 337. [2021-12-06 17:12:49,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 263 states have (on average 1.5779467680608366) internal successors, (415), 267 states have internal predecessors, (415), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2021-12-06 17:12:49,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 518 transitions. [2021-12-06 17:12:49,624 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 518 transitions. Word has length 99 [2021-12-06 17:12:49,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:12:49,625 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 518 transitions. [2021-12-06 17:12:49,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:12:49,625 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 518 transitions. [2021-12-06 17:12:49,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-06 17:12:49,629 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:12:49,629 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:12:49,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 17:12:49,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:12:49,831 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:12:49,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:12:49,832 INFO L85 PathProgramCache]: Analyzing trace with hash 932096872, now seen corresponding path program 1 times [2021-12-06 17:12:49,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:12:49,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151732034] [2021-12-06 17:12:49,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:12:49,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:12:49,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:49,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:12:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:12:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:12:50,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 17:12:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-06 17:12:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 17:12:50,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:12:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 17:12:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 17:12:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 17:12:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 17:12:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 17:12:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,066 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-06 17:12:50,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:12:50,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151732034] [2021-12-06 17:12:50,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151732034] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:12:50,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726417414] [2021-12-06 17:12:50,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:12:50,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:12:50,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:12:50,068 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:12:50,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 17:12:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 1001 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 17:12:50,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:12:50,288 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-06 17:12:50,288 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:12:50,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726417414] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:12:50,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:12:50,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-06 17:12:50,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507713469] [2021-12-06 17:12:50,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:12:50,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:12:50,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:12:50,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:12:50,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 17:12:50,291 INFO L87 Difference]: Start difference. First operand 337 states and 518 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:12:50,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:12:50,325 INFO L93 Difference]: Finished difference Result 717 states and 1120 transitions. [2021-12-06 17:12:50,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:12:50,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2021-12-06 17:12:50,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:12:50,330 INFO L225 Difference]: With dead ends: 717 [2021-12-06 17:12:50,330 INFO L226 Difference]: Without dead ends: 407 [2021-12-06 17:12:50,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 17:12:50,333 INFO L933 BasicCegarLoop]: 537 mSDtfsCounter, 126 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1005 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 [2021-12-06 17:12:50,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1005 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:12:50,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2021-12-06 17:12:50,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 399. [2021-12-06 17:12:50,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 311 states have (on average 1.594855305466238) internal successors, (496), 315 states have internal predecessors, (496), 66 states have call successors, (66), 21 states have call predecessors, (66), 21 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2021-12-06 17:12:50,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 627 transitions. [2021-12-06 17:12:50,361 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 627 transitions. Word has length 105 [2021-12-06 17:12:50,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:12:50,362 INFO L470 AbstractCegarLoop]: Abstraction has 399 states and 627 transitions. [2021-12-06 17:12:50,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:12:50,362 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 627 transitions. [2021-12-06 17:12:50,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-06 17:12:50,365 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:12:50,366 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:12:50,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 17:12:50,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:12:50,567 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:12:50,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:12:50,569 INFO L85 PathProgramCache]: Analyzing trace with hash -654731446, now seen corresponding path program 1 times [2021-12-06 17:12:50,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:12:50,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926638691] [2021-12-06 17:12:50,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:12:50,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:12:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:12:50,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:12:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:12:50,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 17:12:50,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-06 17:12:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 17:12:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-06 17:12:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 17:12:50,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 17:12:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-06 17:12:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 17:12:50,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 17:12:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,779 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-06 17:12:50,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:12:50,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926638691] [2021-12-06 17:12:50,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926638691] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:12:50,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123845241] [2021-12-06 17:12:50,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:12:50,780 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:12:50,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:12:50,781 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:12:50,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 17:12:50,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:50,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 17:12:50,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:12:51,052 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-06 17:12:51,053 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:12:51,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123845241] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:12:51,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:12:51,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-06 17:12:51,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288334265] [2021-12-06 17:12:51,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:12:51,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:12:51,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:12:51,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:12:51,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 17:12:51,054 INFO L87 Difference]: Start difference. First operand 399 states and 627 transitions. Second operand has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-06 17:12:51,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:12:51,102 INFO L93 Difference]: Finished difference Result 789 states and 1244 transitions. [2021-12-06 17:12:51,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:12:51,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 106 [2021-12-06 17:12:51,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:12:51,105 INFO L225 Difference]: With dead ends: 789 [2021-12-06 17:12:51,105 INFO L226 Difference]: Without dead ends: 401 [2021-12-06 17:12:51,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-06 17:12:51,108 INFO L933 BasicCegarLoop]: 507 mSDtfsCounter, 144 mSDsluCounter, 1355 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1862 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:12:51,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 1862 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:12:51,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2021-12-06 17:12:51,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2021-12-06 17:12:51,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 312 states have (on average 1.5929487179487178) internal successors, (497), 317 states have internal predecessors, (497), 66 states have call successors, (66), 21 states have call predecessors, (66), 22 states have return successors, (67), 64 states have call predecessors, (67), 65 states have call successors, (67) [2021-12-06 17:12:51,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 630 transitions. [2021-12-06 17:12:51,125 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 630 transitions. Word has length 106 [2021-12-06 17:12:51,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:12:51,126 INFO L470 AbstractCegarLoop]: Abstraction has 401 states and 630 transitions. [2021-12-06 17:12:51,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-06 17:12:51,126 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 630 transitions. [2021-12-06 17:12:51,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-06 17:12:51,128 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:12:51,128 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:12:51,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 17:12:51,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:12:51,329 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:12:51,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:12:51,329 INFO L85 PathProgramCache]: Analyzing trace with hash 59366120, now seen corresponding path program 1 times [2021-12-06 17:12:51,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:12:51,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281124808] [2021-12-06 17:12:51,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:12:51,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:12:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:51,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:12:51,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:51,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:12:51,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:51,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:12:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:51,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:12:51,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:51,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-06 17:12:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:51,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 17:12:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:51,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 17:12:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:51,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 17:12:51,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:51,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-06 17:12:51,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:51,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-06 17:12:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:51,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 17:12:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:51,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-06 17:12:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:51,453 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 17:12:51,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:12:51,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281124808] [2021-12-06 17:12:51,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281124808] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:12:51,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082719923] [2021-12-06 17:12:51,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:12:51,454 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:12:51,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:12:51,455 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:12:51,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 17:12:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:51,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 1009 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 17:12:51,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:12:51,718 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-06 17:12:51,719 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:12:51,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082719923] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:12:51,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:12:51,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-06 17:12:51,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726373683] [2021-12-06 17:12:51,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:12:51,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:12:51,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:12:51,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:12:51,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-06 17:12:51,721 INFO L87 Difference]: Start difference. First operand 401 states and 630 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-06 17:12:51,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:12:51,775 INFO L93 Difference]: Finished difference Result 791 states and 1249 transitions. [2021-12-06 17:12:51,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:12:51,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 107 [2021-12-06 17:12:51,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:12:51,779 INFO L225 Difference]: With dead ends: 791 [2021-12-06 17:12:51,779 INFO L226 Difference]: Without dead ends: 403 [2021-12-06 17:12:51,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-06 17:12:51,781 INFO L933 BasicCegarLoop]: 505 mSDtfsCounter, 143 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1851 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:12:51,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 1851 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:12:51,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2021-12-06 17:12:51,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2021-12-06 17:12:51,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 313 states have (on average 1.5910543130990416) internal successors, (498), 319 states have internal predecessors, (498), 66 states have call successors, (66), 21 states have call predecessors, (66), 23 states have return successors, (72), 64 states have call predecessors, (72), 65 states have call successors, (72) [2021-12-06 17:12:51,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 636 transitions. [2021-12-06 17:12:51,801 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 636 transitions. Word has length 107 [2021-12-06 17:12:51,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:12:51,802 INFO L470 AbstractCegarLoop]: Abstraction has 403 states and 636 transitions. [2021-12-06 17:12:51,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-06 17:12:51,802 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 636 transitions. [2021-12-06 17:12:51,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-06 17:12:51,804 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:12:51,804 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:12:51,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-06 17:12:52,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:12:52,005 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:12:52,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:12:52,006 INFO L85 PathProgramCache]: Analyzing trace with hash -306147499, now seen corresponding path program 1 times [2021-12-06 17:12:52,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:12:52,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602356897] [2021-12-06 17:12:52,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:12:52,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:12:52,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:52,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:12:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:52,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:12:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:52,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:12:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:52,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:12:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:52,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:12:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:52,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 17:12:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:52,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 17:12:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:52,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 17:12:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:52,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 17:12:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:52,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-06 17:12:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:52,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-06 17:12:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:52,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 17:12:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:52,139 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-06 17:12:52,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:12:52,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602356897] [2021-12-06 17:12:52,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602356897] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:12:52,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:12:52,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 17:12:52,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201131460] [2021-12-06 17:12:52,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:12:52,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 17:12:52,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:12:52,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 17:12:52,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:12:52,141 INFO L87 Difference]: Start difference. First operand 403 states and 636 transitions. Second operand has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-06 17:12:53,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:12:53,192 INFO L93 Difference]: Finished difference Result 864 states and 1383 transitions. [2021-12-06 17:12:53,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 17:12:53,193 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2021-12-06 17:12:53,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:12:53,197 INFO L225 Difference]: With dead ends: 864 [2021-12-06 17:12:53,197 INFO L226 Difference]: Without dead ends: 484 [2021-12-06 17:12:53,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-06 17:12:53,199 INFO L933 BasicCegarLoop]: 549 mSDtfsCounter, 1206 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 1519 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1226 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 1940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 1519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-06 17:12:53,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1226 Valid, 1693 Invalid, 1940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 1519 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-06 17:12:53,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2021-12-06 17:12:53,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 403. [2021-12-06 17:12:53,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 313 states have (on average 1.5910543130990416) internal successors, (498), 319 states have internal predecessors, (498), 66 states have call successors, (66), 21 states have call predecessors, (66), 23 states have return successors, (71), 64 states have call predecessors, (71), 65 states have call successors, (71) [2021-12-06 17:12:53,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 635 transitions. [2021-12-06 17:12:53,234 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 635 transitions. Word has length 108 [2021-12-06 17:12:53,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:12:53,234 INFO L470 AbstractCegarLoop]: Abstraction has 403 states and 635 transitions. [2021-12-06 17:12:53,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-06 17:12:53,235 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 635 transitions. [2021-12-06 17:12:53,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-06 17:12:53,237 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:12:53,237 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:12:53,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 17:12:53,237 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:12:53,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:12:53,238 INFO L85 PathProgramCache]: Analyzing trace with hash 435953045, now seen corresponding path program 2 times [2021-12-06 17:12:53,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:12:53,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308508321] [2021-12-06 17:12:53,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:12:53,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:12:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:53,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:12:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:53,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:12:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:53,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:12:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:53,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:12:53,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:53,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:12:53,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:53,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 17:12:53,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:53,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 17:12:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:53,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 17:12:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:53,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 17:12:53,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:53,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 17:12:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:53,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 17:12:53,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:53,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 17:12:53,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:53,327 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-06 17:12:53,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:12:53,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308508321] [2021-12-06 17:12:53,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308508321] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:12:53,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:12:53,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 17:12:53,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831658935] [2021-12-06 17:12:53,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:12:53,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 17:12:53,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:12:53,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 17:12:53,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:12:53,329 INFO L87 Difference]: Start difference. First operand 403 states and 635 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-06 17:12:54,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:12:54,320 INFO L93 Difference]: Finished difference Result 866 states and 1386 transitions. [2021-12-06 17:12:54,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 17:12:54,321 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 109 [2021-12-06 17:12:54,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:12:54,324 INFO L225 Difference]: With dead ends: 866 [2021-12-06 17:12:54,324 INFO L226 Difference]: Without dead ends: 486 [2021-12-06 17:12:54,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-06 17:12:54,326 INFO L933 BasicCegarLoop]: 553 mSDtfsCounter, 1200 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 1534 mSolverCounterSat, 410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 1706 SdHoareTripleChecker+Invalid, 1944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 410 IncrementalHoareTripleChecker+Valid, 1534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 17:12:54,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1220 Valid, 1706 Invalid, 1944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [410 Valid, 1534 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 17:12:54,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2021-12-06 17:12:54,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 405. [2021-12-06 17:12:54,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 314 states have (on average 1.589171974522293) internal successors, (499), 321 states have internal predecessors, (499), 66 states have call successors, (66), 21 states have call predecessors, (66), 24 states have return successors, (73), 64 states have call predecessors, (73), 65 states have call successors, (73) [2021-12-06 17:12:54,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 638 transitions. [2021-12-06 17:12:54,364 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 638 transitions. Word has length 109 [2021-12-06 17:12:54,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:12:54,364 INFO L470 AbstractCegarLoop]: Abstraction has 405 states and 638 transitions. [2021-12-06 17:12:54,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-06 17:12:54,365 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 638 transitions. [2021-12-06 17:12:54,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-06 17:12:54,367 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:12:54,367 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:12:54,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 17:12:54,368 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:12:54,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:12:54,368 INFO L85 PathProgramCache]: Analyzing trace with hash -110676752, now seen corresponding path program 1 times [2021-12-06 17:12:54,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:12:54,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533057670] [2021-12-06 17:12:54,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:12:54,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:12:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:54,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:12:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:54,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:12:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:54,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:12:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:54,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:12:54,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:54,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:12:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:54,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:12:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:54,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 17:12:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:54,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 17:12:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:54,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 17:12:54,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:54,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 17:12:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:54,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-06 17:12:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:54,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 17:12:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:54,460 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 17:12:54,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:12:54,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533057670] [2021-12-06 17:12:54,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533057670] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:12:54,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:12:54,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 17:12:54,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485041160] [2021-12-06 17:12:54,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:12:54,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 17:12:54,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:12:54,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 17:12:54,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-06 17:12:54,462 INFO L87 Difference]: Start difference. First operand 405 states and 638 transitions. Second operand has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-06 17:12:55,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:12:55,598 INFO L93 Difference]: Finished difference Result 864 states and 1381 transitions. [2021-12-06 17:12:55,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 17:12:55,599 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 110 [2021-12-06 17:12:55,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:12:55,603 INFO L225 Difference]: With dead ends: 864 [2021-12-06 17:12:55,603 INFO L226 Difference]: Without dead ends: 486 [2021-12-06 17:12:55,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-06 17:12:55,606 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 1334 mSDsluCounter, 1647 mSDsCounter, 0 mSdLazyCounter, 2756 mSolverCounterSat, 483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 2179 SdHoareTripleChecker+Invalid, 3239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 2756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:12:55,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1334 Valid, 2179 Invalid, 3239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [483 Valid, 2756 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 17:12:55,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2021-12-06 17:12:55,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 405. [2021-12-06 17:12:55,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 314 states have (on average 1.589171974522293) internal successors, (499), 321 states have internal predecessors, (499), 66 states have call successors, (66), 21 states have call predecessors, (66), 24 states have return successors, (72), 64 states have call predecessors, (72), 65 states have call successors, (72) [2021-12-06 17:12:55,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 637 transitions. [2021-12-06 17:12:55,635 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 637 transitions. Word has length 110 [2021-12-06 17:12:55,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:12:55,636 INFO L470 AbstractCegarLoop]: Abstraction has 405 states and 637 transitions. [2021-12-06 17:12:55,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-06 17:12:55,636 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 637 transitions. [2021-12-06 17:12:55,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-06 17:12:55,638 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:12:55,639 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:12:55,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 17:12:55,639 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:12:55,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:12:55,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1214733079, now seen corresponding path program 2 times [2021-12-06 17:12:55,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:12:55,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560700673] [2021-12-06 17:12:55,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:12:55,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:12:55,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:55,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:12:55,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:55,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:12:55,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:55,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:12:55,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:55,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:12:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:55,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:12:55,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:55,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:12:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:55,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 17:12:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:55,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-06 17:12:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:55,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-06 17:12:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:55,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 17:12:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:55,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-06 17:12:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:55,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-06 17:12:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:55,755 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 17:12:55,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:12:55,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560700673] [2021-12-06 17:12:55,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560700673] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:12:55,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:12:55,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 17:12:55,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49029915] [2021-12-06 17:12:55,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:12:55,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 17:12:55,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:12:55,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 17:12:55,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-06 17:12:55,758 INFO L87 Difference]: Start difference. First operand 405 states and 637 transitions. Second operand has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-06 17:12:56,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:12:56,862 INFO L93 Difference]: Finished difference Result 866 states and 1387 transitions. [2021-12-06 17:12:56,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 17:12:56,863 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 111 [2021-12-06 17:12:56,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:12:56,866 INFO L225 Difference]: With dead ends: 866 [2021-12-06 17:12:56,866 INFO L226 Difference]: Without dead ends: 488 [2021-12-06 17:12:56,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-06 17:12:56,867 INFO L933 BasicCegarLoop]: 539 mSDtfsCounter, 1323 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 2824 mSolverCounterSat, 462 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 2203 SdHoareTripleChecker+Invalid, 3286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 462 IncrementalHoareTripleChecker+Valid, 2824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-06 17:12:56,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1323 Valid, 2203 Invalid, 3286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [462 Valid, 2824 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-06 17:12:56,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2021-12-06 17:12:56,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 407. [2021-12-06 17:12:56,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 315 states have (on average 1.5873015873015872) internal successors, (500), 323 states have internal predecessors, (500), 66 states have call successors, (66), 21 states have call predecessors, (66), 25 states have return successors, (77), 64 states have call predecessors, (77), 65 states have call successors, (77) [2021-12-06 17:12:56,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 643 transitions. [2021-12-06 17:12:56,886 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 643 transitions. Word has length 111 [2021-12-06 17:12:56,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:12:56,886 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 643 transitions. [2021-12-06 17:12:56,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-06 17:12:56,887 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 643 transitions. [2021-12-06 17:12:56,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-06 17:12:56,888 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:12:56,888 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:12:56,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 17:12:56,889 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:12:56,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:12:56,889 INFO L85 PathProgramCache]: Analyzing trace with hash -843374101, now seen corresponding path program 1 times [2021-12-06 17:12:56,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:12:56,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301596763] [2021-12-06 17:12:56,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:12:56,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:12:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:56,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:12:56,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:56,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:12:56,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:56,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:12:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:56,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:12:56,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:56,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:12:56,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:56,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:12:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:56,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 17:12:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:56,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 17:12:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:56,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 17:12:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:56,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 17:12:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:56,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 17:12:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:56,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-06 17:12:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:56,967 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-06 17:12:56,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:12:56,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301596763] [2021-12-06 17:12:56,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301596763] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:12:56,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002010255] [2021-12-06 17:12:56,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:12:56,967 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:12:56,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:12:56,968 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:12:56,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 17:12:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:57,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 17:12:57,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:12:57,162 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-06 17:12:57,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:12:57,259 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-06 17:12:57,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002010255] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:12:57,259 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 17:12:57,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2021-12-06 17:12:57,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343519728] [2021-12-06 17:12:57,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 17:12:57,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 17:12:57,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:12:57,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 17:12:57,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-06 17:12:57,261 INFO L87 Difference]: Start difference. First operand 407 states and 643 transitions. Second operand has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 7 states have internal predecessors, (105), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-06 17:12:58,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:12:58,173 INFO L93 Difference]: Finished difference Result 1053 states and 1756 transitions. [2021-12-06 17:12:58,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 17:12:58,174 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 7 states have internal predecessors, (105), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 112 [2021-12-06 17:12:58,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:12:58,180 INFO L225 Difference]: With dead ends: 1053 [2021-12-06 17:12:58,180 INFO L226 Difference]: Without dead ends: 905 [2021-12-06 17:12:58,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-12-06 17:12:58,182 INFO L933 BasicCegarLoop]: 650 mSDtfsCounter, 1640 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 607 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1694 SdHoareTripleChecker+Valid, 2130 SdHoareTripleChecker+Invalid, 1776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 607 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 17:12:58,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1694 Valid, 2130 Invalid, 1776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [607 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 17:12:58,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2021-12-06 17:12:58,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 800. [2021-12-06 17:12:58,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 629 states have (on average 1.6422893481717011) internal successors, (1033), 637 states have internal predecessors, (1033), 145 states have call successors, (145), 21 states have call predecessors, (145), 25 states have return successors, (166), 143 states have call predecessors, (166), 144 states have call successors, (166) [2021-12-06 17:12:58,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1344 transitions. [2021-12-06 17:12:58,233 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1344 transitions. Word has length 112 [2021-12-06 17:12:58,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:12:58,233 INFO L470 AbstractCegarLoop]: Abstraction has 800 states and 1344 transitions. [2021-12-06 17:12:58,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 7 states have internal predecessors, (105), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-06 17:12:58,233 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1344 transitions. [2021-12-06 17:12:58,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-06 17:12:58,236 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:12:58,237 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:12:58,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-06 17:12:58,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-06 17:12:58,438 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:12:58,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:12:58,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1148018674, now seen corresponding path program 1 times [2021-12-06 17:12:58,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:12:58,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887942327] [2021-12-06 17:12:58,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:12:58,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:12:58,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:58,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:12:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:58,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:12:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:58,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:12:58,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:58,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:12:58,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:58,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:12:58,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:58,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:12:58,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:58,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 17:12:58,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:58,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 17:12:58,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:58,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 17:12:58,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:58,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 17:12:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:58,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-06 17:12:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:58,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-06 17:12:58,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:58,549 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-06 17:12:58,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:12:58,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887942327] [2021-12-06 17:12:58,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887942327] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:12:58,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:12:58,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:12:58,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650157704] [2021-12-06 17:12:58,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:12:58,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:12:58,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:12:58,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:12:58,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:12:58,552 INFO L87 Difference]: Start difference. First operand 800 states and 1344 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:12:59,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:12:59,280 INFO L93 Difference]: Finished difference Result 2011 states and 3461 transitions. [2021-12-06 17:12:59,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:12:59,281 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2021-12-06 17:12:59,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:12:59,287 INFO L225 Difference]: With dead ends: 2011 [2021-12-06 17:12:59,288 INFO L226 Difference]: Without dead ends: 1279 [2021-12-06 17:12:59,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 17:12:59,290 INFO L933 BasicCegarLoop]: 581 mSDtfsCounter, 1199 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 17:12:59,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1217 Valid, 1414 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 17:12:59,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2021-12-06 17:12:59,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1190. [2021-12-06 17:12:59,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1190 states, 940 states have (on average 1.652127659574468) internal successors, (1553), 948 states have internal predecessors, (1553), 224 states have call successors, (224), 21 states have call predecessors, (224), 25 states have return successors, (255), 222 states have call predecessors, (255), 223 states have call successors, (255) [2021-12-06 17:12:59,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 2032 transitions. [2021-12-06 17:12:59,342 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 2032 transitions. Word has length 118 [2021-12-06 17:12:59,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:12:59,343 INFO L470 AbstractCegarLoop]: Abstraction has 1190 states and 2032 transitions. [2021-12-06 17:12:59,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:12:59,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 2032 transitions. [2021-12-06 17:12:59,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-06 17:12:59,348 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:12:59,348 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:12:59,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 17:12:59,349 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:12:59,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:12:59,349 INFO L85 PathProgramCache]: Analyzing trace with hash -379042841, now seen corresponding path program 1 times [2021-12-06 17:12:59,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:12:59,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294816449] [2021-12-06 17:12:59,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:12:59,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:12:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:59,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:12:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:59,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:12:59,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:59,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:12:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:59,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:12:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:59,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:12:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:59,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:12:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:59,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 17:12:59,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:59,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 17:12:59,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:59,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 17:12:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:59,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 17:12:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:59,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-06 17:12:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:59,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 17:12:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:12:59,417 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-06 17:12:59,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:12:59,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294816449] [2021-12-06 17:12:59,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294816449] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:12:59,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:12:59,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:12:59,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037335795] [2021-12-06 17:12:59,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:12:59,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:12:59,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:12:59,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:12:59,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:12:59,418 INFO L87 Difference]: Start difference. First operand 1190 states and 2032 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:13:00,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:13:00,233 INFO L93 Difference]: Finished difference Result 2960 states and 5135 transitions. [2021-12-06 17:13:00,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:13:00,234 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2021-12-06 17:13:00,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:13:00,244 INFO L225 Difference]: With dead ends: 2960 [2021-12-06 17:13:00,244 INFO L226 Difference]: Without dead ends: 1891 [2021-12-06 17:13:00,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 17:13:00,247 INFO L933 BasicCegarLoop]: 582 mSDtfsCounter, 1192 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 462 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 1410 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 462 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 17:13:00,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1210 Valid, 1410 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [462 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 17:13:00,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2021-12-06 17:13:00,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1802. [2021-12-06 17:13:00,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1802 states, 1433 states have (on average 1.658060013956734) internal successors, (2376), 1441 states have internal predecessors, (2376), 343 states have call successors, (343), 21 states have call predecessors, (343), 25 states have return successors, (374), 341 states have call predecessors, (374), 342 states have call successors, (374) [2021-12-06 17:13:00,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1802 states to 1802 states and 3093 transitions. [2021-12-06 17:13:00,329 INFO L78 Accepts]: Start accepts. Automaton has 1802 states and 3093 transitions. Word has length 119 [2021-12-06 17:13:00,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:13:00,329 INFO L470 AbstractCegarLoop]: Abstraction has 1802 states and 3093 transitions. [2021-12-06 17:13:00,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:13:00,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states and 3093 transitions. [2021-12-06 17:13:00,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-06 17:13:00,337 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:13:00,337 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:13:00,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 17:13:00,337 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:13:00,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:13:00,337 INFO L85 PathProgramCache]: Analyzing trace with hash 2117822860, now seen corresponding path program 1 times [2021-12-06 17:13:00,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:13:00,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009667261] [2021-12-06 17:13:00,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:13:00,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:13:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:00,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:13:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:00,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:13:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:00,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:13:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:00,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:13:00,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:00,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:13:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:00,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:13:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:00,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 17:13:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:00,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-06 17:13:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:00,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 17:13:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:00,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 17:13:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:00,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 17:13:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:00,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-06 17:13:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:00,406 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-06 17:13:00,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:13:00,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009667261] [2021-12-06 17:13:00,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009667261] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:13:00,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:13:00,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:13:00,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256614988] [2021-12-06 17:13:00,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:13:00,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:13:00,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:13:00,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:13:00,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:13:00,407 INFO L87 Difference]: Start difference. First operand 1802 states and 3093 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:13:01,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:13:01,158 INFO L93 Difference]: Finished difference Result 4385 states and 7669 transitions. [2021-12-06 17:13:01,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:13:01,158 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2021-12-06 17:13:01,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:13:01,173 INFO L225 Difference]: With dead ends: 4385 [2021-12-06 17:13:01,173 INFO L226 Difference]: Without dead ends: 2829 [2021-12-06 17:13:01,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 17:13:01,178 INFO L933 BasicCegarLoop]: 575 mSDtfsCounter, 1196 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 475 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 475 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 17:13:01,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1215 Valid, 1393 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [475 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 17:13:01,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2829 states. [2021-12-06 17:13:01,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2829 to 2740. [2021-12-06 17:13:01,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2740 states, 2209 states have (on average 1.663196016296967) internal successors, (3674), 2217 states have internal predecessors, (3674), 505 states have call successors, (505), 21 states have call predecessors, (505), 25 states have return successors, (552), 503 states have call predecessors, (552), 504 states have call successors, (552) [2021-12-06 17:13:01,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2740 states to 2740 states and 4731 transitions. [2021-12-06 17:13:01,288 INFO L78 Accepts]: Start accepts. Automaton has 2740 states and 4731 transitions. Word has length 120 [2021-12-06 17:13:01,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:13:01,289 INFO L470 AbstractCegarLoop]: Abstraction has 2740 states and 4731 transitions. [2021-12-06 17:13:01,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:13:01,289 INFO L276 IsEmpty]: Start isEmpty. Operand 2740 states and 4731 transitions. [2021-12-06 17:13:01,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-06 17:13:01,297 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:13:01,297 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:13:01,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 17:13:01,298 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:13:01,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:13:01,298 INFO L85 PathProgramCache]: Analyzing trace with hash -567709178, now seen corresponding path program 1 times [2021-12-06 17:13:01,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:13:01,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111538152] [2021-12-06 17:13:01,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:13:01,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:13:01,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:01,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:13:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:01,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:13:01,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:01,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:13:01,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:01,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:13:01,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:01,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:13:01,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:01,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:13:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:01,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-06 17:13:01,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:01,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 17:13:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:01,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 17:13:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:01,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-06 17:13:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:01,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-06 17:13:01,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:01,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 17:13:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:01,378 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-06 17:13:01,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:13:01,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111538152] [2021-12-06 17:13:01,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111538152] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:13:01,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:13:01,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:13:01,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559565709] [2021-12-06 17:13:01,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:13:01,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:13:01,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:13:01,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:13:01,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:13:01,380 INFO L87 Difference]: Start difference. First operand 2740 states and 4731 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:13:02,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:13:02,151 INFO L93 Difference]: Finished difference Result 6634 states and 11678 transitions. [2021-12-06 17:13:02,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:13:02,151 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2021-12-06 17:13:02,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:13:02,173 INFO L225 Difference]: With dead ends: 6634 [2021-12-06 17:13:02,173 INFO L226 Difference]: Without dead ends: 4344 [2021-12-06 17:13:02,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 17:13:02,179 INFO L933 BasicCegarLoop]: 580 mSDtfsCounter, 1188 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 17:13:02,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1206 Valid, 1404 Invalid, 1262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 17:13:02,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4344 states. [2021-12-06 17:13:02,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4344 to 4255. [2021-12-06 17:13:02,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4255 states, 3479 states have (on average 1.6668582926128197) internal successors, (5799), 3487 states have internal predecessors, (5799), 750 states have call successors, (750), 21 states have call predecessors, (750), 25 states have return successors, (823), 748 states have call predecessors, (823), 749 states have call successors, (823) [2021-12-06 17:13:02,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4255 states to 4255 states and 7372 transitions. [2021-12-06 17:13:02,360 INFO L78 Accepts]: Start accepts. Automaton has 4255 states and 7372 transitions. Word has length 121 [2021-12-06 17:13:02,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:13:02,361 INFO L470 AbstractCegarLoop]: Abstraction has 4255 states and 7372 transitions. [2021-12-06 17:13:02,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:13:02,361 INFO L276 IsEmpty]: Start isEmpty. Operand 4255 states and 7372 transitions. [2021-12-06 17:13:02,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-06 17:13:02,371 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:13:02,371 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:13:02,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 17:13:02,371 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:13:02,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:13:02,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1406541776, now seen corresponding path program 1 times [2021-12-06 17:13:02,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:13:02,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973239886] [2021-12-06 17:13:02,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:13:02,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:13:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:02,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:13:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:02,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:13:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:02,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:13:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:02,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:13:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:02,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:13:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:02,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:13:02,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:02,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 17:13:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:02,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 17:13:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:02,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 17:13:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:02,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 17:13:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:02,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-06 17:13:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:02,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 17:13:02,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:02,438 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-06 17:13:02,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:13:02,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973239886] [2021-12-06 17:13:02,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973239886] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:13:02,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:13:02,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:13:02,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417127463] [2021-12-06 17:13:02,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:13:02,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:13:02,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:13:02,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:13:02,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:13:02,440 INFO L87 Difference]: Start difference. First operand 4255 states and 7372 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:13:03,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:13:03,384 INFO L93 Difference]: Finished difference Result 10650 states and 18790 transitions. [2021-12-06 17:13:03,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:13:03,385 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2021-12-06 17:13:03,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:13:03,422 INFO L225 Difference]: With dead ends: 10650 [2021-12-06 17:13:03,422 INFO L226 Difference]: Without dead ends: 7077 [2021-12-06 17:13:03,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 17:13:03,431 INFO L933 BasicCegarLoop]: 590 mSDtfsCounter, 1189 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 17:13:03,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1207 Valid, 1434 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 816 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 17:13:03,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7077 states. [2021-12-06 17:13:03,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7077 to 6988. [2021-12-06 17:13:03,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6988 states, 5719 states have (on average 1.6618289910823572) internal successors, (9504), 5727 states have internal predecessors, (9504), 1243 states have call successors, (1243), 21 states have call predecessors, (1243), 25 states have return successors, (1360), 1241 states have call predecessors, (1360), 1242 states have call successors, (1360) [2021-12-06 17:13:03,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6988 states to 6988 states and 12107 transitions. [2021-12-06 17:13:03,728 INFO L78 Accepts]: Start accepts. Automaton has 6988 states and 12107 transitions. Word has length 122 [2021-12-06 17:13:03,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:13:03,728 INFO L470 AbstractCegarLoop]: Abstraction has 6988 states and 12107 transitions. [2021-12-06 17:13:03,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:13:03,729 INFO L276 IsEmpty]: Start isEmpty. Operand 6988 states and 12107 transitions. [2021-12-06 17:13:03,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-06 17:13:03,742 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:13:03,742 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:13:03,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-06 17:13:03,743 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:13:03,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:13:03,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1060285598, now seen corresponding path program 1 times [2021-12-06 17:13:03,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:13:03,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104374688] [2021-12-06 17:13:03,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:13:03,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:13:03,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:03,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:13:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:03,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:13:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:03,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:13:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:03,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:13:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:03,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:13:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:03,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:13:03,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:03,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 17:13:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:03,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 17:13:03,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:03,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-06 17:13:03,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:03,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-06 17:13:03,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:03,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 17:13:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:03,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-06 17:13:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:03,817 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-06 17:13:03,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:13:03,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104374688] [2021-12-06 17:13:03,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104374688] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:13:03,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:13:03,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:13:03,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347121601] [2021-12-06 17:13:03,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:13:03,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:13:03,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:13:03,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:13:03,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:13:03,820 INFO L87 Difference]: Start difference. First operand 6988 states and 12107 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:13:04,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:13:04,864 INFO L93 Difference]: Finished difference Result 17790 states and 31362 transitions. [2021-12-06 17:13:04,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:13:04,864 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 123 [2021-12-06 17:13:04,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:13:04,902 INFO L225 Difference]: With dead ends: 17790 [2021-12-06 17:13:04,902 INFO L226 Difference]: Without dead ends: 11861 [2021-12-06 17:13:04,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 17:13:04,926 INFO L933 BasicCegarLoop]: 583 mSDtfsCounter, 1184 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 452 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 1412 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 452 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 17:13:04,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1202 Valid, 1412 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [452 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 17:13:04,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11861 states. [2021-12-06 17:13:05,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11861 to 11772. [2021-12-06 17:13:05,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11772 states, 9681 states have (on average 1.6611920256171884) internal successors, (16082), 9689 states have internal predecessors, (16082), 2065 states have call successors, (2065), 21 states have call predecessors, (2065), 25 states have return successors, (2260), 2063 states have call predecessors, (2260), 2064 states have call successors, (2260) [2021-12-06 17:13:05,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11772 states to 11772 states and 20407 transitions. [2021-12-06 17:13:05,378 INFO L78 Accepts]: Start accepts. Automaton has 11772 states and 20407 transitions. Word has length 123 [2021-12-06 17:13:05,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:13:05,378 INFO L470 AbstractCegarLoop]: Abstraction has 11772 states and 20407 transitions. [2021-12-06 17:13:05,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:13:05,378 INFO L276 IsEmpty]: Start isEmpty. Operand 11772 states and 20407 transitions. [2021-12-06 17:13:05,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-06 17:13:05,395 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:13:05,395 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:13:05,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-06 17:13:05,396 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:13:05,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:13:05,396 INFO L85 PathProgramCache]: Analyzing trace with hash 205419470, now seen corresponding path program 1 times [2021-12-06 17:13:05,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:13:05,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413603261] [2021-12-06 17:13:05,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:13:05,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:13:05,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:05,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:13:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:05,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:13:05,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:05,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:13:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:05,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:13:05,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:05,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:13:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:05,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:13:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:05,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 17:13:05,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:05,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-06 17:13:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:05,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 17:13:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:05,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-06 17:13:05,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:05,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-06 17:13:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:05,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-06 17:13:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:05,464 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-06 17:13:05,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:13:05,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413603261] [2021-12-06 17:13:05,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413603261] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:13:05,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:13:05,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:13:05,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724319619] [2021-12-06 17:13:05,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:13:05,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:13:05,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:13:05,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:13:05,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:13:05,466 INFO L87 Difference]: Start difference. First operand 11772 states and 20407 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:13:06,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:13:06,666 INFO L93 Difference]: Finished difference Result 28223 states and 49487 transitions. [2021-12-06 17:13:06,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:13:06,666 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2021-12-06 17:13:06,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:13:06,712 INFO L225 Difference]: With dead ends: 28223 [2021-12-06 17:13:06,712 INFO L226 Difference]: Without dead ends: 18454 [2021-12-06 17:13:06,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 17:13:06,747 INFO L933 BasicCegarLoop]: 575 mSDtfsCounter, 1187 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 452 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 452 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 17:13:06,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1206 Valid, 1370 Invalid, 1250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [452 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 17:13:06,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18454 states. [2021-12-06 17:13:07,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18454 to 18365. [2021-12-06 17:13:07,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18365 states, 15071 states have (on average 1.6354588282131246) internal successors, (24648), 15079 states have internal predecessors, (24648), 3268 states have call successors, (3268), 21 states have call predecessors, (3268), 25 states have return successors, (3607), 3266 states have call predecessors, (3607), 3267 states have call successors, (3607) [2021-12-06 17:13:07,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18365 states to 18365 states and 31523 transitions. [2021-12-06 17:13:07,493 INFO L78 Accepts]: Start accepts. Automaton has 18365 states and 31523 transitions. Word has length 124 [2021-12-06 17:13:07,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:13:07,494 INFO L470 AbstractCegarLoop]: Abstraction has 18365 states and 31523 transitions. [2021-12-06 17:13:07,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:13:07,494 INFO L276 IsEmpty]: Start isEmpty. Operand 18365 states and 31523 transitions. [2021-12-06 17:13:07,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-06 17:13:07,511 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:13:07,512 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:13:07,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 17:13:07,512 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:13:07,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:13:07,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1061974497, now seen corresponding path program 1 times [2021-12-06 17:13:07,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:13:07,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020207206] [2021-12-06 17:13:07,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:13:07,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:13:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:07,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:13:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:07,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:13:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:07,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:13:07,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:07,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:13:07,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:07,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:13:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:07,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:13:07,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:07,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-06 17:13:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:07,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-06 17:13:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:07,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 17:13:07,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:07,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 17:13:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:07,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-06 17:13:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:07,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-06 17:13:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:07,589 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-06 17:13:07,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:13:07,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020207206] [2021-12-06 17:13:07,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020207206] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:13:07,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:13:07,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:13:07,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350120784] [2021-12-06 17:13:07,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:13:07,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:13:07,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:13:07,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:13:07,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:13:07,590 INFO L87 Difference]: Start difference. First operand 18365 states and 31523 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:13:09,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:13:09,381 INFO L93 Difference]: Finished difference Result 48645 states and 84991 transitions. [2021-12-06 17:13:09,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:13:09,382 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2021-12-06 17:13:09,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:13:09,475 INFO L225 Difference]: With dead ends: 48645 [2021-12-06 17:13:09,475 INFO L226 Difference]: Without dead ends: 32890 [2021-12-06 17:13:09,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 17:13:09,511 INFO L933 BasicCegarLoop]: 580 mSDtfsCounter, 1183 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 1407 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 17:13:09,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1201 Valid, 1407 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [483 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 17:13:09,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32890 states. [2021-12-06 17:13:10,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32890 to 32801. [2021-12-06 17:13:10,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32801 states, 27057 states have (on average 1.6319251949587907) internal successors, (44155), 27065 states have internal predecessors, (44155), 5718 states have call successors, (5718), 21 states have call predecessors, (5718), 25 states have return successors, (6331), 5716 states have call predecessors, (6331), 5717 states have call successors, (6331) [2021-12-06 17:13:10,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32801 states to 32801 states and 56204 transitions. [2021-12-06 17:13:10,770 INFO L78 Accepts]: Start accepts. Automaton has 32801 states and 56204 transitions. Word has length 125 [2021-12-06 17:13:10,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:13:10,771 INFO L470 AbstractCegarLoop]: Abstraction has 32801 states and 56204 transitions. [2021-12-06 17:13:10,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:13:10,771 INFO L276 IsEmpty]: Start isEmpty. Operand 32801 states and 56204 transitions. [2021-12-06 17:13:10,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-12-06 17:13:10,785 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:13:10,786 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:13:10,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-06 17:13:10,786 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:13:10,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:13:10,786 INFO L85 PathProgramCache]: Analyzing trace with hash 277723476, now seen corresponding path program 1 times [2021-12-06 17:13:10,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:13:10,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195073512] [2021-12-06 17:13:10,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:13:10,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:13:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:10,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:13:10,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:10,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:13:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:10,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:13:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:10,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:13:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:10,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:13:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:10,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:13:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:10,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 17:13:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:10,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-06 17:13:10,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:10,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-06 17:13:10,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:10,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 17:13:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:10,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 17:13:10,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:10,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 17:13:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:10,851 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-06 17:13:10,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:13:10,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195073512] [2021-12-06 17:13:10,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195073512] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:13:10,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:13:10,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:13:10,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894975787] [2021-12-06 17:13:10,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:13:10,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:13:10,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:13:10,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:13:10,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:13:10,852 INFO L87 Difference]: Start difference. First operand 32801 states and 56204 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:13:13,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:13:13,427 INFO L93 Difference]: Finished difference Result 89542 states and 155625 transitions. [2021-12-06 17:13:13,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:13:13,427 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 126 [2021-12-06 17:13:13,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:13:13,596 INFO L225 Difference]: With dead ends: 89542 [2021-12-06 17:13:13,596 INFO L226 Difference]: Without dead ends: 60227 [2021-12-06 17:13:13,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 17:13:13,657 INFO L933 BasicCegarLoop]: 580 mSDtfsCounter, 1182 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 17:13:13,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1200 Valid, 1409 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 17:13:13,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60227 states. [2021-12-06 17:13:15,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60227 to 60138. [2021-12-06 17:13:16,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60138 states, 49881 states have (on average 1.6274332912331348) internal successors, (81178), 49889 states have internal predecessors, (81178), 10231 states have call successors, (10231), 21 states have call predecessors, (10231), 25 states have return successors, (11376), 10229 states have call predecessors, (11376), 10230 states have call successors, (11376) [2021-12-06 17:13:16,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60138 states to 60138 states and 102785 transitions. [2021-12-06 17:13:16,212 INFO L78 Accepts]: Start accepts. Automaton has 60138 states and 102785 transitions. Word has length 126 [2021-12-06 17:13:16,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:13:16,212 INFO L470 AbstractCegarLoop]: Abstraction has 60138 states and 102785 transitions. [2021-12-06 17:13:16,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:13:16,212 INFO L276 IsEmpty]: Start isEmpty. Operand 60138 states and 102785 transitions. [2021-12-06 17:13:16,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-06 17:13:16,236 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:13:16,236 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:13:16,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-06 17:13:16,236 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:13:16,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:13:16,237 INFO L85 PathProgramCache]: Analyzing trace with hash -333345311, now seen corresponding path program 1 times [2021-12-06 17:13:16,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:13:16,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806302582] [2021-12-06 17:13:16,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:13:16,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:13:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:16,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:13:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:16,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:13:16,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:16,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:13:16,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:16,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:13:16,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:16,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:13:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:16,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:13:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:16,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 17:13:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:16,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 17:13:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:16,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 17:13:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:16,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-06 17:13:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:16,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-06 17:13:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:16,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 17:13:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:16,315 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-06 17:13:16,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:13:16,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806302582] [2021-12-06 17:13:16,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806302582] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:13:16,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:13:16,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:13:16,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792324870] [2021-12-06 17:13:16,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:13:16,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:13:16,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:13:16,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:13:16,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:13:16,317 INFO L87 Difference]: Start difference. First operand 60138 states and 102785 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:13:20,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:13:20,394 INFO L93 Difference]: Finished difference Result 112633 states and 196203 transitions. [2021-12-06 17:13:20,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:13:20,394 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 127 [2021-12-06 17:13:20,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:13:20,705 INFO L225 Difference]: With dead ends: 112633 [2021-12-06 17:13:20,705 INFO L226 Difference]: Without dead ends: 112485 [2021-12-06 17:13:20,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 17:13:20,732 INFO L933 BasicCegarLoop]: 581 mSDtfsCounter, 1177 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 455 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 17:13:20,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1195 Valid, 1408 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [455 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 17:13:20,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112485 states. [2021-12-06 17:13:25,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112485 to 112396. [2021-12-06 17:13:25,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112396 states, 93771 states have (on average 1.6218766996192853) internal successors, (152085), 93779 states have internal predecessors, (152085), 18599 states have call successors, (18599), 21 states have call predecessors, (18599), 25 states have return successors, (20790), 18597 states have call predecessors, (20790), 18598 states have call successors, (20790) [2021-12-06 17:13:25,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112396 states to 112396 states and 191474 transitions. [2021-12-06 17:13:25,563 INFO L78 Accepts]: Start accepts. Automaton has 112396 states and 191474 transitions. Word has length 127 [2021-12-06 17:13:25,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:13:25,563 INFO L470 AbstractCegarLoop]: Abstraction has 112396 states and 191474 transitions. [2021-12-06 17:13:25,564 INFO L471 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:13:25,564 INFO L276 IsEmpty]: Start isEmpty. Operand 112396 states and 191474 transitions. [2021-12-06 17:13:25,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-06 17:13:25,593 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:13:25,593 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:13:25,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-06 17:13:25,593 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:13:25,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:13:25,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1394347435, now seen corresponding path program 1 times [2021-12-06 17:13:25,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:13:25,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052947692] [2021-12-06 17:13:25,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:13:25,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:13:25,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:25,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:13:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:25,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:13:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:25,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:13:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:25,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:13:25,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:25,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:13:25,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:25,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:13:25,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:25,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 17:13:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:25,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 17:13:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:25,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 17:13:25,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:25,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 17:13:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:25,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 17:13:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:25,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-06 17:13:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:25,718 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-06 17:13:25,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:13:25,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052947692] [2021-12-06 17:13:25,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052947692] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:13:25,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:13:25,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-12-06 17:13:25,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395655229] [2021-12-06 17:13:25,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:13:25,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-06 17:13:25,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:13:25,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-06 17:13:25,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-12-06 17:13:25,720 INFO L87 Difference]: Start difference. First operand 112396 states and 191474 transitions. Second operand has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 10 states have internal predecessors, (88), 5 states have call successors, (15), 7 states have call predecessors, (15), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2021-12-06 17:13:36,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:13:36,117 INFO L93 Difference]: Finished difference Result 224379 states and 394227 transitions. [2021-12-06 17:13:36,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-12-06 17:13:36,117 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 10 states have internal predecessors, (88), 5 states have call successors, (15), 7 states have call predecessors, (15), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 128 [2021-12-06 17:13:36,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:13:36,928 INFO L225 Difference]: With dead ends: 224379 [2021-12-06 17:13:36,928 INFO L226 Difference]: Without dead ends: 224237 [2021-12-06 17:13:36,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1007 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=725, Invalid=2935, Unknown=0, NotChecked=0, Total=3660 [2021-12-06 17:13:36,989 INFO L933 BasicCegarLoop]: 723 mSDtfsCounter, 4478 mSDsluCounter, 3053 mSDsCounter, 0 mSdLazyCounter, 8043 mSolverCounterSat, 2133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4478 SdHoareTripleChecker+Valid, 3776 SdHoareTripleChecker+Invalid, 10176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2133 IncrementalHoareTripleChecker+Valid, 8043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:13:36,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4478 Valid, 3776 Invalid, 10176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2133 Valid, 8043 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-12-06 17:13:37,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224237 states. [2021-12-06 17:13:46,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224237 to 223744. [2021-12-06 17:13:46,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223744 states, 186735 states have (on average 1.622539963049241) internal successors, (302985), 186641 states have internal predecessors, (302985), 36946 states have call successors, (36946), 54 states have call predecessors, (36946), 62 states have return successors, (44608), 37054 states have call predecessors, (44608), 36943 states have call successors, (44608) [2021-12-06 17:13:46,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223744 states to 223744 states and 384539 transitions. [2021-12-06 17:13:46,906 INFO L78 Accepts]: Start accepts. Automaton has 223744 states and 384539 transitions. Word has length 128 [2021-12-06 17:13:46,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:13:46,906 INFO L470 AbstractCegarLoop]: Abstraction has 223744 states and 384539 transitions. [2021-12-06 17:13:46,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 10 states have internal predecessors, (88), 5 states have call successors, (15), 7 states have call predecessors, (15), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2021-12-06 17:13:46,906 INFO L276 IsEmpty]: Start isEmpty. Operand 223744 states and 384539 transitions. [2021-12-06 17:13:46,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-06 17:13:46,952 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:13:46,952 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:13:46,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-06 17:13:46,952 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:13:46,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:13:46,953 INFO L85 PathProgramCache]: Analyzing trace with hash -474322754, now seen corresponding path program 1 times [2021-12-06 17:13:46,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:13:46,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822065369] [2021-12-06 17:13:46,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:13:46,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:13:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:47,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:13:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:47,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:13:47,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:47,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:13:47,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:47,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:13:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:47,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:13:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:47,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:13:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:47,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 17:13:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:47,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 17:13:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:47,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 17:13:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:47,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 17:13:47,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:47,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 17:13:47,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:47,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-06 17:13:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:13:47,058 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-06 17:13:47,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:13:47,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822065369] [2021-12-06 17:13:47,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822065369] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:13:47,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:13:47,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-12-06 17:13:47,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793477989] [2021-12-06 17:13:47,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:13:47,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-06 17:13:47,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:13:47,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-06 17:13:47,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2021-12-06 17:13:47,060 INFO L87 Difference]: Start difference. First operand 223744 states and 384539 transitions. Second operand has 14 states, 14 states have (on average 6.357142857142857) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (15), 8 states have call predecessors, (15), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2021-12-06 17:13:55,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:13:55,814 INFO L93 Difference]: Finished difference Result 224999 states and 393073 transitions. [2021-12-06 17:13:55,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-06 17:13:55,814 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.357142857142857) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (15), 8 states have call predecessors, (15), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 129 [2021-12-06 17:13:55,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:13:56,573 INFO L225 Difference]: With dead ends: 224999 [2021-12-06 17:13:56,573 INFO L226 Difference]: Without dead ends: 224543 [2021-12-06 17:13:56,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=281, Invalid=979, Unknown=0, NotChecked=0, Total=1260 [2021-12-06 17:13:56,652 INFO L933 BasicCegarLoop]: 552 mSDtfsCounter, 2101 mSDsluCounter, 2282 mSDsCounter, 0 mSdLazyCounter, 3638 mSolverCounterSat, 1063 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2119 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 4701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1063 IncrementalHoareTripleChecker+Valid, 3638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-06 17:13:56,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2119 Valid, 2834 Invalid, 4701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1063 Valid, 3638 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-06 17:13:56,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224543 states. [2021-12-06 17:14:06,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224543 to 223945. [2021-12-06 17:14:06,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223945 states, 186873 states have (on average 1.622353148930022) internal successors, (303174), 186787 states have internal predecessors, (303174), 37006 states have call successors, (37006), 60 states have call predecessors, (37006), 65 states have return successors, (44671), 37109 states have call predecessors, (44671), 36997 states have call successors, (44671) [2021-12-06 17:14:06,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223945 states to 223945 states and 384851 transitions. [2021-12-06 17:14:06,933 INFO L78 Accepts]: Start accepts. Automaton has 223945 states and 384851 transitions. Word has length 129 [2021-12-06 17:14:06,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:14:06,933 INFO L470 AbstractCegarLoop]: Abstraction has 223945 states and 384851 transitions. [2021-12-06 17:14:06,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.357142857142857) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (15), 8 states have call predecessors, (15), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2021-12-06 17:14:06,934 INFO L276 IsEmpty]: Start isEmpty. Operand 223945 states and 384851 transitions. [2021-12-06 17:14:06,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-06 17:14:06,980 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:14:06,980 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:14:06,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-06 17:14:06,980 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:14:06,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:14:06,980 INFO L85 PathProgramCache]: Analyzing trace with hash 764974310, now seen corresponding path program 1 times [2021-12-06 17:14:06,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:14:06,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859823944] [2021-12-06 17:14:06,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:14:06,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:14:06,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:07,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:14:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:07,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:14:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:07,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:14:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:07,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:14:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:07,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:14:07,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:07,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:14:07,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:07,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 17:14:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:07,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 17:14:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:07,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 17:14:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:07,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 17:14:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:07,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 17:14:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:07,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-06 17:14:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:07,052 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-06 17:14:07,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:14:07,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859823944] [2021-12-06 17:14:07,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859823944] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:14:07,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:14:07,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 17:14:07,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761165514] [2021-12-06 17:14:07,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:14:07,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 17:14:07,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:14:07,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 17:14:07,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:14:07,053 INFO L87 Difference]: Start difference. First operand 223945 states and 384851 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:14:19,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:14:19,493 INFO L93 Difference]: Finished difference Result 337198 states and 598259 transitions. [2021-12-06 17:14:19,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-06 17:14:19,494 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 129 [2021-12-06 17:14:19,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:14:20,836 INFO L225 Difference]: With dead ends: 337198 [2021-12-06 17:14:20,836 INFO L226 Difference]: Without dead ends: 336794 [2021-12-06 17:14:20,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=353, Unknown=0, NotChecked=0, Total=506 [2021-12-06 17:14:20,937 INFO L933 BasicCegarLoop]: 716 mSDtfsCounter, 2652 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 1816 mSolverCounterSat, 1086 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2665 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 2902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1086 IncrementalHoareTripleChecker+Valid, 1816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-06 17:14:20,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2665 Valid, 1942 Invalid, 2902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1086 Valid, 1816 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-06 17:14:21,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336794 states. [2021-12-06 17:14:36,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336794 to 335418. [2021-12-06 17:14:36,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335418 states, 279921 states have (on average 1.622539930909078) internal successors, (454183), 279739 states have internal predecessors, (454183), 55393 states have call successors, (55393), 95 states have call predecessors, (55393), 103 states have return successors, (73889), 55603 states have call predecessors, (73889), 55378 states have call successors, (73889) [2021-12-06 17:14:37,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335418 states to 335418 states and 583465 transitions. [2021-12-06 17:14:37,787 INFO L78 Accepts]: Start accepts. Automaton has 335418 states and 583465 transitions. Word has length 129 [2021-12-06 17:14:37,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:14:37,787 INFO L470 AbstractCegarLoop]: Abstraction has 335418 states and 583465 transitions. [2021-12-06 17:14:37,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:14:37,788 INFO L276 IsEmpty]: Start isEmpty. Operand 335418 states and 583465 transitions. [2021-12-06 17:14:37,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-06 17:14:37,867 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:14:37,867 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:14:37,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-06 17:14:37,867 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:14:37,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:14:37,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1187676136, now seen corresponding path program 1 times [2021-12-06 17:14:37,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:14:37,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241956328] [2021-12-06 17:14:37,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:14:37,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:14:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:37,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:14:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:37,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:14:37,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:37,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:14:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:37,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:14:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:37,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:14:37,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:37,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:14:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:37,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 17:14:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:37,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 17:14:37,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:37,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 17:14:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:37,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 17:14:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:37,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 17:14:37,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:37,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-06 17:14:37,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:14:37,960 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-06 17:14:37,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:14:37,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241956328] [2021-12-06 17:14:37,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241956328] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:14:37,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:14:37,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:14:37,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218886537] [2021-12-06 17:14:37,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:14:37,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:14:37,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:14:37,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:14:37,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:14:37,961 INFO L87 Difference]: Start difference. First operand 335418 states and 583465 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:14:50,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:14:50,163 INFO L93 Difference]: Finished difference Result 337385 states and 596236 transitions. [2021-12-06 17:14:50,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 17:14:50,164 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 129 [2021-12-06 17:14:50,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:14:51,572 INFO L225 Difference]: With dead ends: 337385 [2021-12-06 17:14:51,572 INFO L226 Difference]: Without dead ends: 336387 [2021-12-06 17:14:51,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-12-06 17:14:51,687 INFO L933 BasicCegarLoop]: 555 mSDtfsCounter, 1786 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 494 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1803 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 1103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 494 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 17:14:51,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1803 Valid, 1182 Invalid, 1103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 17:14:51,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336387 states. [2021-12-06 17:15:07,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336387 to 335781. [2021-12-06 17:15:07,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335781 states, 280218 states have (on average 1.6224617976004396) internal successors, (454643), 280040 states have internal predecessors, (454643), 55413 states have call successors, (55413), 140 states have call predecessors, (55413), 149 states have return successors, (73911), 55625 states have call predecessors, (73911), 55398 states have call successors, (73911) [2021-12-06 17:15:09,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335781 states to 335781 states and 583967 transitions. [2021-12-06 17:15:09,008 INFO L78 Accepts]: Start accepts. Automaton has 335781 states and 583967 transitions. Word has length 129 [2021-12-06 17:15:09,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:09,008 INFO L470 AbstractCegarLoop]: Abstraction has 335781 states and 583967 transitions. [2021-12-06 17:15:09,008 INFO L471 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:15:09,008 INFO L276 IsEmpty]: Start isEmpty. Operand 335781 states and 583967 transitions. [2021-12-06 17:15:09,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-12-06 17:15:09,713 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:09,713 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:09,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-06 17:15:09,713 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:09,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:09,714 INFO L85 PathProgramCache]: Analyzing trace with hash -722816478, now seen corresponding path program 1 times [2021-12-06 17:15:09,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:09,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944111538] [2021-12-06 17:15:09,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:09,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:09,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:15:09,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:09,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:15:09,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:09,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:15:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:09,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:15:09,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:09,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:15:09,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:09,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:15:09,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:09,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 17:15:09,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:09,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 17:15:09,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:09,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 17:15:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:09,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 17:15:09,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:09,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-06 17:15:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:09,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 17:15:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:09,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 17:15:09,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:09,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:15:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:09,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:15:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:09,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:15:09,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:09,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 17:15:09,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:09,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-06 17:15:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:09,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-06 17:15:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:09,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-06 17:15:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:09,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-06 17:15:09,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:09,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-06 17:15:09,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:09,819 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-12-06 17:15:09,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:09,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944111538] [2021-12-06 17:15:09,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944111538] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:15:09,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640798074] [2021-12-06 17:15:09,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:09,820 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:15:09,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:15:09,820 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:15:09,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-06 17:15:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:09,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 1448 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 17:15:09,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:15:10,123 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-12-06 17:15:10,123 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:15:10,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640798074] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:10,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:15:10,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2021-12-06 17:15:10,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922216898] [2021-12-06 17:15:10,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:10,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:15:10,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:10,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:15:10,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-06 17:15:10,125 INFO L87 Difference]: Start difference. First operand 335781 states and 583967 transitions. Second operand has 5 states, 4 states have (on average 29.5) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-06 17:15:21,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:21,558 INFO L93 Difference]: Finished difference Result 336653 states and 585240 transitions. [2021-12-06 17:15:21,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:15:21,559 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 29.5) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 208 [2021-12-06 17:15:21,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:22,774 INFO L225 Difference]: With dead ends: 336653 [2021-12-06 17:15:22,774 INFO L226 Difference]: Without dead ends: 335793 [2021-12-06 17:15:22,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-12-06 17:15:22,868 INFO L933 BasicCegarLoop]: 509 mSDtfsCounter, 7 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2020 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:22,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 2020 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:23,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335793 states. [2021-12-06 17:15:38,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335793 to 335783. [2021-12-06 17:15:38,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335783 states, 280219 states have (on average 1.6224595762599967) internal successors, (454644), 280042 states have internal predecessors, (454644), 55413 states have call successors, (55413), 140 states have call predecessors, (55413), 150 states have return successors, (73910), 55625 states have call predecessors, (73910), 55398 states have call successors, (73910) [2021-12-06 17:15:39,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335783 states to 335783 states and 583967 transitions. [2021-12-06 17:15:39,834 INFO L78 Accepts]: Start accepts. Automaton has 335783 states and 583967 transitions. Word has length 208 [2021-12-06 17:15:39,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:39,834 INFO L470 AbstractCegarLoop]: Abstraction has 335783 states and 583967 transitions. [2021-12-06 17:15:39,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 29.5) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-06 17:15:39,834 INFO L276 IsEmpty]: Start isEmpty. Operand 335783 states and 583967 transitions. [2021-12-06 17:15:40,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-12-06 17:15:40,421 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:40,421 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:40,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-06 17:15:40,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-12-06 17:15:40,624 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:40,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:40,625 INFO L85 PathProgramCache]: Analyzing trace with hash 139017124, now seen corresponding path program 1 times [2021-12-06 17:15:40,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:40,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923959646] [2021-12-06 17:15:40,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:40,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:15:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:15:40,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:15:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:15:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:15:40,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:15:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 17:15:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 17:15:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 17:15:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 17:15:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-06 17:15:40,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 17:15:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 17:15:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:15:40,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:15:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:15:40,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 17:15:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-06 17:15:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-06 17:15:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-06 17:15:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-06 17:15:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-06 17:15:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,747 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-12-06 17:15:40,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:40,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923959646] [2021-12-06 17:15:40,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923959646] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:15:40,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235503481] [2021-12-06 17:15:40,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:40,747 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:15:40,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:15:40,750 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:15:40,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-06 17:15:40,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 1445 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 17:15:40,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:15:41,054 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-12-06 17:15:41,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:15:41,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235503481] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:41,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:15:41,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2021-12-06 17:15:41,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325928633] [2021-12-06 17:15:41,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:41,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:15:41,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:41,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:15:41,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-12-06 17:15:41,055 INFO L87 Difference]: Start difference. First operand 335783 states and 583967 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-06 17:15:52,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:52,637 INFO L93 Difference]: Finished difference Result 337143 states and 585960 transitions. [2021-12-06 17:15:52,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:15:52,638 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 208 [2021-12-06 17:15:52,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:53,732 INFO L225 Difference]: With dead ends: 337143 [2021-12-06 17:15:53,732 INFO L226 Difference]: Without dead ends: 335858 [2021-12-06 17:15:53,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2021-12-06 17:15:53,842 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 47 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1481 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:53,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 1481 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:54,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335858 states. [2021-12-06 17:16:09,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335858 to 335858. [2021-12-06 17:16:09,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335858 states, 280289 states have (on average 1.6224646703937722) internal successors, (454759), 280112 states have internal predecessors, (454759), 55413 states have call successors, (55413), 145 states have call predecessors, (55413), 155 states have return successors, (73910), 55625 states have call predecessors, (73910), 55398 states have call successors, (73910) [2021-12-06 17:16:11,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335858 states to 335858 states and 584082 transitions. [2021-12-06 17:16:11,175 INFO L78 Accepts]: Start accepts. Automaton has 335858 states and 584082 transitions. Word has length 208 [2021-12-06 17:16:11,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:16:11,175 INFO L470 AbstractCegarLoop]: Abstraction has 335858 states and 584082 transitions. [2021-12-06 17:16:11,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-06 17:16:11,175 INFO L276 IsEmpty]: Start isEmpty. Operand 335858 states and 584082 transitions. [2021-12-06 17:16:11,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-12-06 17:16:11,890 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:16:11,891 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:16:11,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-06 17:16:12,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-12-06 17:16:12,093 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:16:12,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:12,094 INFO L85 PathProgramCache]: Analyzing trace with hash 703573188, now seen corresponding path program 1 times [2021-12-06 17:16:12,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:16:12,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662047186] [2021-12-06 17:16:12,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:12,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:16:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:12,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:16:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:12,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:16:12,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:12,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:16:12,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:12,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:16:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:12,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:16:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:12,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:16:12,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:12,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 17:16:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:12,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 17:16:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:12,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 17:16:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:12,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-06 17:16:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:12,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 17:16:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:12,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 17:16:12,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:12,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 17:16:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:12,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:16:12,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:12,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:16:12,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:12,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:16:12,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:12,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 17:16:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:12,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-06 17:16:12,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:12,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-06 17:16:12,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:12,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 17:16:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:12,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-06 17:16:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:12,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-06 17:16:12,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:12,238 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-12-06 17:16:12,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:16:12,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662047186] [2021-12-06 17:16:12,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662047186] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:16:12,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:16:12,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 17:16:12,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446576303] [2021-12-06 17:16:12,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:16:12,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 17:16:12,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:16:12,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 17:16:12,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-12-06 17:16:12,240 INFO L87 Difference]: Start difference. First operand 335858 states and 584082 transitions. Second operand has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 5 states have internal predecessors, (123), 3 states have call successors, (25), 8 states have call predecessors, (25), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-06 17:16:38,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:16:38,208 INFO L93 Difference]: Finished difference Result 650627 states and 1154414 transitions. [2021-12-06 17:16:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-06 17:16:38,208 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 5 states have internal predecessors, (123), 3 states have call successors, (25), 8 states have call predecessors, (25), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 206 [2021-12-06 17:16:38,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:16:40,661 INFO L225 Difference]: With dead ends: 650627 [2021-12-06 17:16:40,662 INFO L226 Difference]: Without dead ends: 649182 [2021-12-06 17:16:40,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=870, Unknown=0, NotChecked=0, Total=1190 [2021-12-06 17:16:40,884 INFO L933 BasicCegarLoop]: 665 mSDtfsCounter, 3020 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 2945 mSolverCounterSat, 1187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3037 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 4132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1187 IncrementalHoareTripleChecker+Valid, 2945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:16:40,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3037 Valid, 2425 Invalid, 4132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1187 Valid, 2945 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-06 17:16:41,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649182 states. [2021-12-06 17:17:13,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649182 to 647310. [2021-12-06 17:17:14,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647310 states, 540239 states have (on average 1.625415788197446) internal successors, (878113), 539904 states have internal predecessors, (878113), 106716 states have call successors, (106716), 287 states have call predecessors, (106716), 354 states have return successors, (143661), 107178 states have call predecessors, (143661), 106686 states have call successors, (143661) [2021-12-06 17:17:16,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647310 states to 647310 states and 1128490 transitions. [2021-12-06 17:17:16,689 INFO L78 Accepts]: Start accepts. Automaton has 647310 states and 1128490 transitions. Word has length 206 [2021-12-06 17:17:16,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:17:16,690 INFO L470 AbstractCegarLoop]: Abstraction has 647310 states and 1128490 transitions. [2021-12-06 17:17:16,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 5 states have internal predecessors, (123), 3 states have call successors, (25), 8 states have call predecessors, (25), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-06 17:17:16,690 INFO L276 IsEmpty]: Start isEmpty. Operand 647310 states and 1128490 transitions. [2021-12-06 17:17:17,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-12-06 17:17:17,870 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:17:17,870 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:17:17,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-06 17:17:17,870 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:17:17,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:17:17,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1131679553, now seen corresponding path program 1 times [2021-12-06 17:17:17,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:17:17,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038008142] [2021-12-06 17:17:17,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:17:17,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:17:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:17,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:17:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:17,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:17:17,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:17,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:17:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:17,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:17:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:17,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:17:17,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:17,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:17:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:17,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 17:17:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:17,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 17:17:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:17,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 17:17:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:17,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 17:17:17,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:17,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-06 17:17:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:17,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-06 17:17:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:17,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-06 17:17:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:17,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:17:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:17,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:17:17,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:17,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:17:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:17,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 17:17:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:17,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-06 17:17:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:17,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-06 17:17:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:17,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-06 17:17:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:17,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-06 17:17:17,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:17,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-06 17:17:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:17,976 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-12-06 17:17:17,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:17:17,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038008142] [2021-12-06 17:17:17,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038008142] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:17:17,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24592726] [2021-12-06 17:17:17,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:17:17,976 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:17:17,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:17:17,977 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:17:17,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-06 17:17:18,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:18,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 1449 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 17:17:18,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:17:18,326 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2021-12-06 17:17:18,326 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:17:18,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24592726] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:17:18,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:17:18,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 17 [2021-12-06 17:17:18,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571787987] [2021-12-06 17:17:18,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:17:18,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 17:17:18,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:17:18,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 17:17:18,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2021-12-06 17:17:18,327 INFO L87 Difference]: Start difference. First operand 647310 states and 1128490 transitions. Second operand has 9 states, 8 states have (on average 15.125) internal successors, (121), 7 states have internal predecessors, (121), 4 states have call successors, (23), 5 states have call predecessors, (23), 4 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2021-12-06 17:17:42,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:17:42,357 INFO L93 Difference]: Finished difference Result 650248 states and 1132817 transitions. [2021-12-06 17:17:42,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:17:42,358 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 15.125) internal successors, (121), 7 states have internal predecessors, (121), 4 states have call successors, (23), 5 states have call predecessors, (23), 4 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 208 [2021-12-06 17:17:42,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:17:44,797 INFO L225 Difference]: With dead ends: 650248 [2021-12-06 17:17:44,798 INFO L226 Difference]: Without dead ends: 646834 [2021-12-06 17:17:45,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2021-12-06 17:17:45,007 INFO L933 BasicCegarLoop]: 510 mSDtfsCounter, 486 mSDsluCounter, 3033 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 3543 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:17:45,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 3543 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:17:45,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646834 states. [2021-12-06 17:18:16,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646834 to 646790. [2021-12-06 17:18:16,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646790 states, 539866 states have (on average 1.6255144795189918) internal successors, (877560), 539503 states have internal predecessors, (877560), 106608 states have call successors, (106608), 275 states have call predecessors, (106608), 315 states have return successors, (143440), 107061 states have call predecessors, (143440), 106578 states have call successors, (143440) [2021-12-06 17:18:18,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646790 states to 646790 states and 1127608 transitions. [2021-12-06 17:18:18,959 INFO L78 Accepts]: Start accepts. Automaton has 646790 states and 1127608 transitions. Word has length 208 [2021-12-06 17:18:18,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:18:18,960 INFO L470 AbstractCegarLoop]: Abstraction has 646790 states and 1127608 transitions. [2021-12-06 17:18:18,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 15.125) internal successors, (121), 7 states have internal predecessors, (121), 4 states have call successors, (23), 5 states have call predecessors, (23), 4 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2021-12-06 17:18:18,960 INFO L276 IsEmpty]: Start isEmpty. Operand 646790 states and 1127608 transitions. [2021-12-06 17:18:20,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-12-06 17:18:20,168 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:18:20,169 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:18:20,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-06 17:18:20,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-12-06 17:18:20,370 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:18:20,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:18:20,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1574895500, now seen corresponding path program 1 times [2021-12-06 17:18:20,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:18:20,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018347313] [2021-12-06 17:18:20,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:18:20,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:18:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:20,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:18:20,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:20,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:18:20,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:20,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:18:20,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:20,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:18:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:20,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:18:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:20,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:18:20,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:20,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 17:18:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:20,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:18:20,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:20,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:18:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:20,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:18:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:20,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:18:20,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:20,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:18:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:20,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:18:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:20,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:18:20,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:20,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:18:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:20,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 17:18:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:20,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 17:18:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:20,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-06 17:18:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:20,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 17:18:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:20,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-06 17:18:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:20,548 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-12-06 17:18:20,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:18:20,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018347313] [2021-12-06 17:18:20,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018347313] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:18:20,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:18:20,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 17:18:20,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503734452] [2021-12-06 17:18:20,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:18:20,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 17:18:20,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:18:20,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 17:18:20,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-12-06 17:18:20,550 INFO L87 Difference]: Start difference. First operand 646790 states and 1127608 transitions. Second operand has 11 states, 10 states have (on average 12.3) internal successors, (123), 5 states have internal predecessors, (123), 3 states have call successors, (22), 8 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-06 17:18:45,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:18:45,698 INFO L93 Difference]: Finished difference Result 649791 states and 1150976 transitions. [2021-12-06 17:18:45,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-06 17:18:45,699 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.3) internal successors, (123), 5 states have internal predecessors, (123), 3 states have call successors, (22), 8 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 193 [2021-12-06 17:18:45,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:18:48,372 INFO L225 Difference]: With dead ends: 649791 [2021-12-06 17:18:48,372 INFO L226 Difference]: Without dead ends: 647997 [2021-12-06 17:18:48,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2021-12-06 17:18:48,585 INFO L933 BasicCegarLoop]: 579 mSDtfsCounter, 1151 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 1874 mSolverCounterSat, 467 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 1918 SdHoareTripleChecker+Invalid, 2341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 467 IncrementalHoareTripleChecker+Valid, 1874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 17:18:48,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1151 Valid, 1918 Invalid, 2341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [467 Valid, 1874 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 17:18:49,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647997 states. [2021-12-06 17:19:21,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647997 to 646441. [2021-12-06 17:19:21,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646441 states, 539609 states have (on average 1.6256233680312968) internal successors, (877201), 539230 states have internal predecessors, (877201), 106550 states have call successors, (106550), 251 states have call predecessors, (106550), 281 states have return successors, (143358), 107005 states have call predecessors, (143358), 106524 states have call successors, (143358) [2021-12-06 17:19:24,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646441 states to 646441 states and 1127109 transitions. [2021-12-06 17:19:24,309 INFO L78 Accepts]: Start accepts. Automaton has 646441 states and 1127109 transitions. Word has length 193 [2021-12-06 17:19:24,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:19:24,309 INFO L470 AbstractCegarLoop]: Abstraction has 646441 states and 1127109 transitions. [2021-12-06 17:19:24,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.3) internal successors, (123), 5 states have internal predecessors, (123), 3 states have call successors, (22), 8 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-06 17:19:24,309 INFO L276 IsEmpty]: Start isEmpty. Operand 646441 states and 1127109 transitions. [2021-12-06 17:19:25,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-12-06 17:19:25,363 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:19:25,364 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:19:25,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-06 17:19:25,364 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:19:25,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:19:25,364 INFO L85 PathProgramCache]: Analyzing trace with hash 626668100, now seen corresponding path program 1 times [2021-12-06 17:19:25,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:19:25,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071349910] [2021-12-06 17:19:25,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:19:25,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:19:25,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:25,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:19:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:25,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:19:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:25,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:19:25,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:25,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:19:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:25,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:19:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:25,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:19:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:25,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 17:19:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:25,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:19:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:25,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:19:25,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:25,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 17:19:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:25,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:19:25,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:25,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:19:25,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:25,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:19:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:25,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-06 17:19:25,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:25,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 17:19:25,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:25,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 17:19:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:25,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 17:19:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:25,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-06 17:19:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:25,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-06 17:19:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:25,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-06 17:19:25,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:25,608 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-12-06 17:19:25,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:19:25,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071349910] [2021-12-06 17:19:25,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071349910] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:19:25,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699933339] [2021-12-06 17:19:25,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:19:25,609 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:19:25,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:19:25,609 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:19:25,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d3916a-781a-48aa-af9a-f91571e90123/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-06 17:19:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:25,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 19 conjunts are in the unsatisfiable core [2021-12-06 17:19:25,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:19:26,311 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-06 17:19:26,311 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:19:26,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699933339] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:19:26,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:19:26,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [23] total 35 [2021-12-06 17:19:26,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539826408] [2021-12-06 17:19:26,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:19:26,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-06 17:19:26,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:19:26,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-06 17:19:26,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=1092, Unknown=0, NotChecked=0, Total=1190 [2021-12-06 17:19:26,312 INFO L87 Difference]: Start difference. First operand 646441 states and 1127109 transitions. Second operand has 14 states, 13 states have (on average 10.923076923076923) internal successors, (142), 13 states have internal predecessors, (142), 6 states have call successors, (22), 4 states have call predecessors, (22), 8 states have return successors, (20), 9 states have call predecessors, (20), 6 states have call successors, (20) [2021-12-06 17:19:53,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:19:53,407 INFO L93 Difference]: Finished difference Result 650950 states and 1133957 transitions. [2021-12-06 17:19:53,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-06 17:19:53,407 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.923076923076923) internal successors, (142), 13 states have internal predecessors, (142), 6 states have call successors, (22), 4 states have call predecessors, (22), 8 states have return successors, (20), 9 states have call predecessors, (20), 6 states have call successors, (20) Word has length 194 [2021-12-06 17:19:53,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:19:55,903 INFO L225 Difference]: With dead ends: 650950 [2021-12-06 17:19:55,903 INFO L226 Difference]: Without dead ends: 648967 [2021-12-06 17:19:56,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=192, Invalid=2064, Unknown=0, NotChecked=0, Total=2256 [2021-12-06 17:19:56,118 INFO L933 BasicCegarLoop]: 634 mSDtfsCounter, 672 mSDsluCounter, 1793 mSDsCounter, 0 mSdLazyCounter, 5102 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 2427 SdHoareTripleChecker+Invalid, 5264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 5102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-06 17:19:56,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [752 Valid, 2427 Invalid, 5264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 5102 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-06 17:19:56,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648967 states.