./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c42f9bd-1957-4bee-9f89-5a6e3e642b50/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c42f9bd-1957-4bee-9f89-5a6e3e642b50/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c42f9bd-1957-4bee-9f89-5a6e3e642b50/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c42f9bd-1957-4bee-9f89-5a6e3e642b50/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c42f9bd-1957-4bee-9f89-5a6e3e642b50/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c42f9bd-1957-4bee-9f89-5a6e3e642b50/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cf397912a53dab4d44f4df9c274fc7c69b1023a0a0a29a356bc73a744537daa6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 00:27:33,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:27:33,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:27:33,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:27:33,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:27:33,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:27:33,834 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:27:33,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:27:33,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:27:33,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:27:33,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:27:33,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:27:33,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:27:33,850 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:27:33,851 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:27:33,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:27:33,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:27:33,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:27:33,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:27:33,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:27:33,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:27:33,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:27:33,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:27:33,872 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:27:33,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:27:33,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:27:33,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:27:33,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:27:33,879 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:27:33,880 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:27:33,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:27:33,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:27:33,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:27:33,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:27:33,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:27:33,895 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:27:33,896 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:27:33,896 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:27:33,896 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:27:33,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:27:33,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:27:33,903 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c42f9bd-1957-4bee-9f89-5a6e3e642b50/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 00:27:33,963 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:27:33,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:27:33,965 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:27:33,965 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:27:33,966 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:27:33,966 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:27:33,967 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:27:33,967 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:27:33,967 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:27:33,968 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:27:33,969 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:27:33,969 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:27:33,970 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:27:33,970 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:27:33,970 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:27:33,971 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:27:33,971 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:27:33,971 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:27:33,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:27:33,972 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:27:33,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:27:33,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:27:33,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:27:33,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:27:33,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:27:33,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:27:33,975 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:27:33,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:27:33,976 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:27:33,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:27:33,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:27:33,977 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:27:33,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:27:33,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:27:33,978 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:27:33,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:27:33,978 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:27:33,979 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:27:33,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:27:33,979 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:27:33,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:27:33,980 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_5c42f9bd-1957-4bee-9f89-5a6e3e642b50/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c42f9bd-1957-4bee-9f89-5a6e3e642b50/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf397912a53dab4d44f4df9c274fc7c69b1023a0a0a29a356bc73a744537daa6 [2022-11-22 00:27:34,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:27:34,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:27:34,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:27:34,360 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:27:34,361 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:27:34,362 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c42f9bd-1957-4bee-9f89-5a6e3e642b50/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/product-lines/email_spec4_productSimulator.cil.c [2022-11-22 00:27:37,673 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:27:38,091 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:27:38,091 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c42f9bd-1957-4bee-9f89-5a6e3e642b50/sv-benchmarks/c/product-lines/email_spec4_productSimulator.cil.c [2022-11-22 00:27:38,113 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c42f9bd-1957-4bee-9f89-5a6e3e642b50/bin/utaipan-g80aRyZoba/data/a6435cf36/b8a67b6e3d1746608ac3fb1bc7fba468/FLAG478fe37c5 [2022-11-22 00:27:38,128 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c42f9bd-1957-4bee-9f89-5a6e3e642b50/bin/utaipan-g80aRyZoba/data/a6435cf36/b8a67b6e3d1746608ac3fb1bc7fba468 [2022-11-22 00:27:38,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:27:38,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:27:38,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:27:38,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:27:38,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:27:38,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:27:38" (1/1) ... [2022-11-22 00:27:38,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1abdd6e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:38, skipping insertion in model container [2022-11-22 00:27:38,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:27:38" (1/1) ... [2022-11-22 00:27:38,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:27:38,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:27:38,715 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c42f9bd-1957-4bee-9f89-5a6e3e642b50/sv-benchmarks/c/product-lines/email_spec4_productSimulator.cil.c[18883,18896] [2022-11-22 00:27:39,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:27:39,112 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:27:39,189 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c42f9bd-1957-4bee-9f89-5a6e3e642b50/sv-benchmarks/c/product-lines/email_spec4_productSimulator.cil.c[18883,18896] [2022-11-22 00:27:39,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:27:39,346 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:27:39,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:39 WrapperNode [2022-11-22 00:27:39,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:27:39,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:27:39,348 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:27:39,348 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:27:39,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:39" (1/1) ... [2022-11-22 00:27:39,398 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:39" (1/1) ... [2022-11-22 00:27:39,467 INFO L138 Inliner]: procedures = 151, calls = 283, calls flagged for inlining = 67, calls inlined = 64, statements flattened = 1312 [2022-11-22 00:27:39,468 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:27:39,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:27:39,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:27:39,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:27:39,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:39" (1/1) ... [2022-11-22 00:27:39,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:39" (1/1) ... [2022-11-22 00:27:39,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:39" (1/1) ... [2022-11-22 00:27:39,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:39" (1/1) ... [2022-11-22 00:27:39,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:39" (1/1) ... [2022-11-22 00:27:39,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:39" (1/1) ... [2022-11-22 00:27:39,565 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:39" (1/1) ... [2022-11-22 00:27:39,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:39" (1/1) ... [2022-11-22 00:27:39,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:27:39,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:27:39,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:27:39,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:27:39,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:39" (1/1) ... [2022-11-22 00:27:39,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:27:39,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c42f9bd-1957-4bee-9f89-5a6e3e642b50/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:27:39,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c42f9bd-1957-4bee-9f89-5a6e3e642b50/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:27:39,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c42f9bd-1957-4bee-9f89-5a6e3e642b50/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:27:39,694 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-22 00:27:39,695 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-22 00:27:39,695 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2022-11-22 00:27:39,695 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2022-11-22 00:27:39,695 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2022-11-22 00:27:39,695 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2022-11-22 00:27:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-22 00:27:39,696 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-22 00:27:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-22 00:27:39,696 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-22 00:27:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-22 00:27:39,697 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-22 00:27:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-22 00:27:39,697 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-22 00:27:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2022-11-22 00:27:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2022-11-22 00:27:39,698 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-22 00:27:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-22 00:27:39,698 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2022-11-22 00:27:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2022-11-22 00:27:39,699 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-22 00:27:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-22 00:27:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-22 00:27:39,700 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-22 00:27:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-22 00:27:39,701 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-22 00:27:39,702 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2022-11-22 00:27:39,702 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2022-11-22 00:27:39,702 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2022-11-22 00:27:39,702 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2022-11-22 00:27:39,703 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-22 00:27:39,703 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-22 00:27:39,703 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-22 00:27:39,703 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-22 00:27:39,704 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-22 00:27:39,704 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-22 00:27:39,704 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-22 00:27:39,704 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2022-11-22 00:27:39,704 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2022-11-22 00:27:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-22 00:27:39,705 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-22 00:27:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-22 00:27:39,706 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-22 00:27:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-22 00:27:39,706 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-22 00:27:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2022-11-22 00:27:39,707 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2022-11-22 00:27:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:27:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-22 00:27:39,709 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-22 00:27:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-22 00:27:39,709 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-22 00:27:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2022-11-22 00:27:39,710 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2022-11-22 00:27:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2022-11-22 00:27:39,710 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2022-11-22 00:27:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2022-11-22 00:27:39,711 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2022-11-22 00:27:39,711 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-22 00:27:39,712 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-22 00:27:39,713 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-22 00:27:39,714 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-22 00:27:39,714 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-22 00:27:39,714 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-22 00:27:39,720 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-22 00:27:39,720 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-22 00:27:39,720 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-22 00:27:39,721 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-22 00:27:39,722 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-22 00:27:39,722 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-22 00:27:39,722 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-22 00:27:39,722 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-22 00:27:39,723 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2022-11-22 00:27:39,723 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2022-11-22 00:27:39,723 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2022-11-22 00:27:39,724 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2022-11-22 00:27:39,724 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-22 00:27:39,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-22 00:27:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-22 00:27:39,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-22 00:27:39,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:27:39,727 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-22 00:27:39,727 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-22 00:27:39,727 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2022-11-22 00:27:39,727 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2022-11-22 00:27:39,727 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2022-11-22 00:27:39,728 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2022-11-22 00:27:39,728 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-22 00:27:39,728 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-22 00:27:39,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:27:39,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:27:40,115 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:27:40,123 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:27:41,648 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:27:42,708 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:27:42,708 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 00:27:42,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:27:42 BoogieIcfgContainer [2022-11-22 00:27:42,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:27:42,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:27:42,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:27:42,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:27:42,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:27:38" (1/3) ... [2022-11-22 00:27:42,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f81fc76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:27:42, skipping insertion in model container [2022-11-22 00:27:42,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:39" (2/3) ... [2022-11-22 00:27:42,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f81fc76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:27:42, skipping insertion in model container [2022-11-22 00:27:42,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:27:42" (3/3) ... [2022-11-22 00:27:42,731 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_productSimulator.cil.c [2022-11-22 00:27:42,760 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:27:42,764 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 00:27:42,863 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:27:42,873 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5431c549, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:27:42,874 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 00:27:42,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 380 states, 225 states have (on average 1.3333333333333333) internal successors, (300), 245 states have internal predecessors, (300), 110 states have call successors, (110), 43 states have call predecessors, (110), 43 states have return successors, (110), 109 states have call predecessors, (110), 110 states have call successors, (110) [2022-11-22 00:27:42,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-22 00:27:42,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:27:42,921 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:27:42,921 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:27:42,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:27:42,930 INFO L85 PathProgramCache]: Analyzing trace with hash -94602084, now seen corresponding path program 1 times [2022-11-22 00:27:42,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:27:42,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619140700] [2022-11-22 00:27:42,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:27:42,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:27:43,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:27:43,883 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-11-22 00:27:43,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:27:43,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619140700] [2022-11-22 00:27:43,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619140700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:27:43,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:27:43,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:27:43,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20280188] [2022-11-22 00:27:43,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:27:43,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:27:43,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:27:43,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:27:43,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:27:43,947 INFO L87 Difference]: Start difference. First operand has 380 states, 225 states have (on average 1.3333333333333333) internal successors, (300), 245 states have internal predecessors, (300), 110 states have call successors, (110), 43 states have call predecessors, (110), 43 states have return successors, (110), 109 states have call predecessors, (110), 110 states have call successors, (110) Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-22 00:27:44,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:27:44,334 INFO L93 Difference]: Finished difference Result 732 states and 1002 transitions. [2022-11-22 00:27:44,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 00:27:44,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 101 [2022-11-22 00:27:44,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:27:44,354 INFO L225 Difference]: With dead ends: 732 [2022-11-22 00:27:44,355 INFO L226 Difference]: Without dead ends: 377 [2022-11-22 00:27:44,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:27:44,366 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 6 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:27:44,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1386 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 00:27:44,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-11-22 00:27:44,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2022-11-22 00:27:44,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 223 states have (on average 1.2914798206278026) internal successors, (288), 242 states have internal predecessors, (288), 110 states have call successors, (110), 43 states have call predecessors, (110), 43 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) [2022-11-22 00:27:44,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 507 transitions. [2022-11-22 00:27:44,490 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 507 transitions. Word has length 101 [2022-11-22 00:27:44,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:27:44,492 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 507 transitions. [2022-11-22 00:27:44,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-22 00:27:44,494 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 507 transitions. [2022-11-22 00:27:44,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-22 00:27:44,504 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:27:44,505 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:27:44,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:27:44,506 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:27:44,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:27:44,507 INFO L85 PathProgramCache]: Analyzing trace with hash 318244795, now seen corresponding path program 1 times [2022-11-22 00:27:44,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:27:44,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867162547] [2022-11-22 00:27:44,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:27:44,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:27:44,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:27:44,818 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-11-22 00:27:44,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:27:44,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867162547] [2022-11-22 00:27:44,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867162547] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:27:44,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:27:44,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:27:44,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836853307] [2022-11-22 00:27:44,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:27:44,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:27:44,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:27:44,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:27:44,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:27:44,824 INFO L87 Difference]: Start difference. First operand 377 states and 507 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-22 00:27:45,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:27:45,021 INFO L93 Difference]: Finished difference Result 727 states and 988 transitions. [2022-11-22 00:27:45,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:27:45,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 107 [2022-11-22 00:27:45,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:27:45,027 INFO L225 Difference]: With dead ends: 727 [2022-11-22 00:27:45,027 INFO L226 Difference]: Without dead ends: 377 [2022-11-22 00:27:45,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:27:45,033 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 474 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:27:45,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 457 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:27:45,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-11-22 00:27:45,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2022-11-22 00:27:45,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 224 states have (on average 1.2723214285714286) internal successors, (285), 241 states have internal predecessors, (285), 108 states have call successors, (108), 44 states have call predecessors, (108), 44 states have return successors, (107), 106 states have call predecessors, (107), 107 states have call successors, (107) [2022-11-22 00:27:45,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 500 transitions. [2022-11-22 00:27:45,083 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 500 transitions. Word has length 107 [2022-11-22 00:27:45,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:27:45,085 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 500 transitions. [2022-11-22 00:27:45,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-22 00:27:45,086 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 500 transitions. [2022-11-22 00:27:45,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 00:27:45,091 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:27:45,091 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:27:45,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:27:45,092 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:27:45,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:27:45,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1125132462, now seen corresponding path program 1 times [2022-11-22 00:27:45,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:27:45,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933042565] [2022-11-22 00:27:45,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:27:45,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:27:45,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:27:45,287 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-22 00:27:45,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:27:45,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933042565] [2022-11-22 00:27:45,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933042565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:27:45,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:27:45,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:27:45,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569464428] [2022-11-22 00:27:45,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:27:45,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:27:45,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:27:45,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:27:45,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:27:45,295 INFO L87 Difference]: Start difference. First operand 377 states and 500 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, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 00:27:45,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:27:45,563 INFO L93 Difference]: Finished difference Result 721 states and 967 transitions. [2022-11-22 00:27:45,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:27:45,564 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, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 113 [2022-11-22 00:27:45,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:27:45,571 INFO L225 Difference]: With dead ends: 721 [2022-11-22 00:27:45,572 INFO L226 Difference]: Without dead ends: 375 [2022-11-22 00:27:45,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:27:45,583 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 455 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:27:45,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 470 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 00:27:45,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-11-22 00:27:45,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2022-11-22 00:27:45,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 224 states have (on average 1.2589285714285714) internal successors, (282), 239 states have internal predecessors, (282), 106 states have call successors, (106), 44 states have call predecessors, (106), 44 states have return successors, (105), 104 states have call predecessors, (105), 105 states have call successors, (105) [2022-11-22 00:27:45,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 493 transitions. [2022-11-22 00:27:45,661 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 493 transitions. Word has length 113 [2022-11-22 00:27:45,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:27:45,662 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 493 transitions. [2022-11-22 00:27:45,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 00:27:45,663 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 493 transitions. [2022-11-22 00:27:45,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 00:27:45,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:27:45,676 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:27:45,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:27:45,677 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:27:45,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:27:45,677 INFO L85 PathProgramCache]: Analyzing trace with hash 177926787, now seen corresponding path program 1 times [2022-11-22 00:27:45,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:27:45,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612432223] [2022-11-22 00:27:45,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:27:45,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:27:45,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:27:45,829 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-22 00:27:45,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:27:45,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612432223] [2022-11-22 00:27:45,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612432223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:27:45,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:27:45,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:27:45,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130275721] [2022-11-22 00:27:45,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:27:45,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:27:45,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:27:45,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:27:45,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:27:45,834 INFO L87 Difference]: Start difference. First operand 375 states and 493 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 00:27:46,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:27:46,038 INFO L93 Difference]: Finished difference Result 713 states and 934 transitions. [2022-11-22 00:27:46,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:27:46,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 114 [2022-11-22 00:27:46,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:27:46,043 INFO L225 Difference]: With dead ends: 713 [2022-11-22 00:27:46,044 INFO L226 Difference]: Without dead ends: 378 [2022-11-22 00:27:46,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:27:46,047 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 436 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:27:46,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 453 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:27:46,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-11-22 00:27:46,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 372. [2022-11-22 00:27:46,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 224 states have (on average 1.2098214285714286) internal successors, (271), 234 states have internal predecessors, (271), 103 states have call successors, (103), 44 states have call predecessors, (103), 44 states have return successors, (102), 101 states have call predecessors, (102), 102 states have call successors, (102) [2022-11-22 00:27:46,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 476 transitions. [2022-11-22 00:27:46,093 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 476 transitions. Word has length 114 [2022-11-22 00:27:46,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:27:46,094 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 476 transitions. [2022-11-22 00:27:46,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 00:27:46,095 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 476 transitions. [2022-11-22 00:27:46,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-22 00:27:46,097 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:27:46,098 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:27:46,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:27:46,098 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:27:46,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:27:46,099 INFO L85 PathProgramCache]: Analyzing trace with hash 13633175, now seen corresponding path program 1 times [2022-11-22 00:27:46,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:27:46,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916797000] [2022-11-22 00:27:46,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:27:46,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:27:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:27:46,283 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-22 00:27:46,283 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:27:46,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916797000] [2022-11-22 00:27:46,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916797000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:27:46,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:27:46,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:27:46,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514101142] [2022-11-22 00:27:46,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:27:46,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:27:46,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:27:46,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:27:46,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:27:46,287 INFO L87 Difference]: Start difference. First operand 372 states and 476 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 00:27:46,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:27:46,514 INFO L93 Difference]: Finished difference Result 589 states and 747 transitions. [2022-11-22 00:27:46,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:27:46,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 126 [2022-11-22 00:27:46,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:27:46,519 INFO L225 Difference]: With dead ends: 589 [2022-11-22 00:27:46,519 INFO L226 Difference]: Without dead ends: 374 [2022-11-22 00:27:46,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:27:46,521 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 0 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:27:46,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 847 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:27:46,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2022-11-22 00:27:46,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 374. [2022-11-22 00:27:46,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 226 states have (on average 1.2079646017699115) internal successors, (273), 236 states have internal predecessors, (273), 103 states have call successors, (103), 44 states have call predecessors, (103), 44 states have return successors, (102), 101 states have call predecessors, (102), 102 states have call successors, (102) [2022-11-22 00:27:46,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 478 transitions. [2022-11-22 00:27:46,564 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 478 transitions. Word has length 126 [2022-11-22 00:27:46,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:27:46,564 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 478 transitions. [2022-11-22 00:27:46,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 00:27:46,565 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 478 transitions. [2022-11-22 00:27:46,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-22 00:27:46,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:27:46,568 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:27:46,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 00:27:46,568 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:27:46,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:27:46,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1914407031, now seen corresponding path program 1 times [2022-11-22 00:27:46,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:27:46,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302976590] [2022-11-22 00:27:46,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:27:46,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:27:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:27:46,709 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-22 00:27:46,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:27:46,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302976590] [2022-11-22 00:27:46,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302976590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:27:46,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:27:46,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:27:46,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477719562] [2022-11-22 00:27:46,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:27:46,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:27:46,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:27:46,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:27:46,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:27:46,713 INFO L87 Difference]: Start difference. First operand 374 states and 478 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 00:27:46,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:27:46,908 INFO L93 Difference]: Finished difference Result 748 states and 980 transitions. [2022-11-22 00:27:46,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:27:46,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 131 [2022-11-22 00:27:46,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:27:46,912 INFO L225 Difference]: With dead ends: 748 [2022-11-22 00:27:46,912 INFO L226 Difference]: Without dead ends: 441 [2022-11-22 00:27:46,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:27:46,914 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 76 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:27:46,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 861 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:27:46,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-11-22 00:27:46,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 436. [2022-11-22 00:27:46,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 274 states have (on average 1.2518248175182483) internal successors, (343), 284 states have internal predecessors, (343), 117 states have call successors, (117), 44 states have call predecessors, (117), 44 states have return successors, (116), 115 states have call predecessors, (116), 116 states have call successors, (116) [2022-11-22 00:27:46,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 576 transitions. [2022-11-22 00:27:46,953 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 576 transitions. Word has length 131 [2022-11-22 00:27:46,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:27:46,954 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 576 transitions. [2022-11-22 00:27:46,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 00:27:46,955 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 576 transitions. [2022-11-22 00:27:46,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-22 00:27:46,957 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:27:46,957 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:27:46,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 00:27:46,958 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:27:46,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:27:46,958 INFO L85 PathProgramCache]: Analyzing trace with hash 405896975, now seen corresponding path program 1 times [2022-11-22 00:27:46,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:27:46,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550388175] [2022-11-22 00:27:46,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:27:46,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:27:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:27:47,212 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-22 00:27:47,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:27:47,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550388175] [2022-11-22 00:27:47,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550388175] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:27:47,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827785441] [2022-11-22 00:27:47,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:27:47,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:27:47,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c42f9bd-1957-4bee-9f89-5a6e3e642b50/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:27:47,219 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c42f9bd-1957-4bee-9f89-5a6e3e642b50/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:27:47,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c42f9bd-1957-4bee-9f89-5a6e3e642b50/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 00:27:47,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:27:47,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 1367 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 00:27:47,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:27:47,804 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-22 00:27:47,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:27:47,940 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-22 00:27:47,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827785441] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:27:47,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1499136757] [2022-11-22 00:27:47,970 INFO L159 IcfgInterpreter]: Started Sifa with 105 locations of interest [2022-11-22 00:27:47,970 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:27:47,977 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:27:47,983 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:27:47,984 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:29:29,281 INFO L197 IcfgInterpreter]: Interpreting procedure setup_rjh__before__Keys with input of size 494 for LOIs [2022-11-22 00:29:30,397 INFO L197 IcfgInterpreter]: Interpreting procedure setup_bob__before__Keys with input of size 500 for LOIs [2022-11-22 00:29:31,853 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 275 for LOIs [2022-11-22 00:29:33,669 INFO L197 IcfgInterpreter]: Interpreting procedure select_one with input of size 725 for LOIs [2022-11-22 00:29:34,484 INFO L197 IcfgInterpreter]: Interpreting procedure setup_chuck__before__Keys with input of size 248 for LOIs [2022-11-22 00:29:35,334 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 437 for LOIs [2022-11-22 00:29:35,612 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 245 for LOIs [2022-11-22 00:29:35,654 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 444 for LOIs [2022-11-22 00:29:35,996 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 277 for LOIs [2022-11-22 00:29:37,530 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__before__Sign with input of size 291 for LOIs [2022-11-22 00:29:37,765 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__before__AddressBook with input of size 289 for LOIs [2022-11-22 00:29:37,939 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__before__Encrypt with input of size 289 for LOIs [2022-11-22 00:29:43,224 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 445 for LOIs [2022-11-22 00:29:43,798 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 442 for LOIs [2022-11-22 00:29:44,437 INFO L197 IcfgInterpreter]: Interpreting procedure isSigned with input of size 255 for LOIs [2022-11-22 00:29:44,483 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:29:56,006 WARN L233 SmtUtils]: Spent 5.17s on a formula simplification. DAG size of input: 725 DAG size of output: 244 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:30:01,287 WARN L233 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 733 DAG size of output: 253 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:31:10,823 WARN L233 SmtUtils]: Spent 5.36s on a formula simplification. DAG size of input: 437 DAG size of output: 321 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:31:16,857 WARN L233 SmtUtils]: Spent 5.73s on a formula simplification. DAG size of input: 460 DAG size of output: 341 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:31:30,453 WARN L233 SmtUtils]: Spent 12.30s on a formula simplification. DAG size of input: 732 DAG size of output: 575 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:31:48,128 WARN L233 SmtUtils]: Spent 9.64s on a formula simplification. DAG size of input: 721 DAG size of output: 515 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:32:02,095 WARN L233 SmtUtils]: Spent 12.83s on a formula simplification. DAG size of input: 727 DAG size of output: 610 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:32:12,679 WARN L233 SmtUtils]: Spent 9.94s on a formula simplification. DAG size of input: 731 DAG size of output: 542 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:32:34,886 WARN L233 SmtUtils]: Spent 8.34s on a formula simplification. DAG size of input: 512 DAG size of output: 385 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:32:49,048 WARN L233 SmtUtils]: Spent 8.22s on a formula simplification. DAG size of input: 558 DAG size of output: 412 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:33:28,676 WARN L233 SmtUtils]: Spent 5.60s on a formula simplification. DAG size of input: 445 DAG size of output: 276 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:33:35,230 WARN L233 SmtUtils]: Spent 5.67s on a formula simplification. DAG size of input: 471 DAG size of output: 285 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:34:06,096 WARN L233 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 512 DAG size of output: 371 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:34:20,868 WARN L233 SmtUtils]: Spent 6.28s on a formula simplification. DAG size of input: 519 DAG size of output: 353 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:34:27,594 WARN L233 SmtUtils]: Spent 5.70s on a formula simplification. DAG size of input: 522 DAG size of output: 380 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:34:27,601 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11440#(and (<= |outgoing__before__Encrypt_getClientId_#in~handle#1| 1) (= ~__ste_Client_Keyring1_User2~0 0) (<= ~__SELECTED_FEATURE_Keys~0 2147483647) (<= |old(~__ste_email_isEncrypted1~0)| 0) (= ~__ste_email_subject0~0.offset 0) (<= 0 ~__ste_email_encryptionKey1~0) (= 0 ~__ste_Client_AddressBook0_Address2~0) (= ~__ste_client_outbuffer3~0 0) (<= ~__SELECTED_FEATURE_Base~0 2147483647) (<= |outgoing__before__Encrypt_mail_#in~msg#1| 1) (= ~__ste_Client_counter~0 0) (= ~__ste_Client_Keyring1_PublicKey2~0 0) (<= |outgoing__before__Encrypt_mail_#in~client#1| 1) (<= |old(~__ste_email_encryptionKey0~0)| 0) (<= 0 (+ |outgoing__before__Encrypt_getClientId_~retValue_acc~22#1| 2147483648)) (<= ~__ste_email_encryptionKey1~0 0) (<= ~__ste_email_isSignatureVerified1~0 0) (<= |old(~__ste_email_to0~0)| 2) (<= 0 (+ ~__SELECTED_FEATURE_Keys~0 2147483648)) (<= |outgoing__before__Encrypt_~client#1| 1) (= ~__ste_Client_AddressBook2_Alias0~0 0) (= 0 ~__ste_email_subject0~0.base) (= ~__ste_Client_AddressBook2_Alias1~0 0) (= ~__ste_Client_Keyring2_PublicKey2~0 0) (= ~__ste_client_forwardReceiver3~0 0) (<= |outgoing__before__Encrypt_mail_~client#1| 1) (= ~__ste_client_name2~0.offset 0) (= ~__ste_client_name1~0.base 0) (<= 0 ~__ste_client_autoResponse1~0) (<= 1 |outgoing__before__Encrypt_mail_#in~client#1|) (<= |old(~queued_client~0)| 0) (= ~__ste_Client_Keyring1_User0~0 0) (<= 0 |old(~__ste_email_encryptionKey1~0)|) (<= 1 |outgoing__before__Encrypt_getClientId_~handle#1|) (<= 2 |old(~__ste_email_to0~0)|) (<= 0 |old(~queued_message~0)|) (<= |outgoing__before__Encrypt___utac_acc__SignForward_spec__1_#in~client#1| 1) (= |outgoing__before__Encrypt___utac_acc__SignForward_spec__1_~tmp~27#1| ~__ste_client_privateKey0~0) (<= ~queued_message~0 0) (<= |old(~__ste_email_from0~0)| 0) (<= ~__ste_email_isSignatureVerified0~0 0) (= ~__ste_email_body1~0.offset 0) (<= 1 |outgoing__before__Encrypt_mail_#in~msg#1|) (= ~__SELECTED_FEATURE_Encrypt~0 0) (= ~__ste_Client_AddressBook1_Address2~0 0) (<= |outgoing__before__Encrypt_mail_~__utac__ad__arg2~0#1| 1) (<= ~__ste_email_from0~0 2147483647) (= ~__ste_ClientAddressBook_size1~0 0) (= ~__ste_Client_Keyring0_PublicKey0~0 0) (= ~__ste_Email_counter~0 0) (= ~__ste_ClientKeyring_size1~0 0) (<= 1 |outgoing__before__Encrypt_~msg#1|) (= ~__ste_email_body0~0.offset 0) (<= 0 ~__ste_email_isSigned1~0) (<= |outgoing__before__Encrypt_#in~msg#1| 1) (<= 0 (+ ~__ste_email_from0~0 2147483648)) (= ~__ste_Client_Keyring0_User2~0 0) (<= 1 |outgoing__before__Encrypt_mail_~__utac__ad__arg2~0#1|) (not (= |outgoing__before__Encrypt___utac_acc__SignForward_spec__1_~tmp___0~10#1| 0)) (<= 1 |outgoing__before__Encrypt_#in~msg#1|) (= ~__ste_ClientAddressBook_size0~0 0) (<= |old(~__ste_email_isEncrypted0~0)| 0) (= ~__ste_Client_Keyring0_User1~0 0) (= ~__ste_Client_AddressBook1_Alias1~0 0) (= ~__ste_client_name1~0.offset 0) (<= 0 (+ ~__SELECTED_FEATURE_Base~0 2147483648)) (= ~__SELECTED_FEATURE_Sign~0 1) (<= 1 |outgoing__before__Encrypt_#in~client#1|) (= ~head~0.offset 0) (= ~__ste_client_name0~0.offset 0) (<= 1 |outgoing__before__Encrypt_mail_~client#1|) (<= |outgoing__before__Encrypt_~msg#1| 1) (= ~__ste_Client_Keyring0_PublicKey2~0 0) (<= |outgoing__before__Encrypt___utac_acc__SignForward_spec__1_~client#1| 1) (<= ~__ste_client_privateKey2~0 789) (= ~__ste_Client_Keyring1_PublicKey0~0 0) (<= 0 |old(~__ste_email_encryptionKey0~0)|) (<= |outgoing__before__Encrypt_~tmp~2#1| 2147483647) (<= |outgoing__before__Encrypt_#in~client#1| 1) (<= |old(~queued_message~0)| 0) (<= 1 |old(~queue_empty~0)|) (<= ~queue_empty~0 1) (<= 1 |outgoing__before__Encrypt___utac_acc__SignForward_spec__1_~msg#1|) (= ~__SELECTED_FEATURE_Decrypt~0 0) (<= |outgoing__before__Encrypt___utac_acc__SignForward_spec__1_#in~msg#1| 1) (<= 0 |old(~__ste_email_isEncrypted0~0)|) (<= 0 (+ ~__ste_email_signKey0~0 2147483648)) (<= 1 |outgoing__before__Encrypt___utac_acc__SignForward_spec__1_~client#1|) (<= 0 ~__ste_email_isEncrypted1~0) (<= ~__ste_email_signKey0~0 2147483647) (<= 0 |old(~__ste_email_from0~0)|) (= ~__SELECTED_FEATURE_AddressBook~0 0) (= ~__ste_client_forwardReceiver2~0 0) (= ~__ste_Client_Keyring0_PublicKey1~0 0) (<= 0 ~__ste_email_isEncrypted0~0) (= ~__ste_Client_Keyring0_User0~0 0) (<= ~__ste_client_idCounter0~0 2147483647) (= |outgoing__before__Encrypt___utac_acc__SignForward_spec__1_~tmp~27#1| 0) (= ~__ste_Client_Keyring2_PublicKey1~0 0) (= ~__ste_email_body0~0.base 0) (<= ~__ste_email_isSigned0~0 1) (<= ~__ste_email_isEncrypted0~0 0) (= ~__ste_Client_AddressBook0_Alias0~0 0) (<= 1 |outgoing__before__Encrypt_getClientId_#in~handle#1|) (= ~__ste_email_id0~0 0) (<= ~__ste_client_autoResponse0~0 0) (<= 1 |outgoing__before__Encrypt_mail_~msg#1|) (= ~__ste_Client_Keyring2_User1~0 0) (<= 1 |outgoing__before__Encrypt___utac_acc__SignForward_spec__1_#in~msg#1|) (= ~__ste_Client_AddressBook2_Address2~0 0) (= 3 ~chuck~0) (= ~__ste_Client_AddressBook2_Address1~0 0) (<= 0 ~__ste_email_signKey1~0) (<= 1 ~queue_empty~0) (= ~__GUIDSL_ROOT_PRODUCTION~0 1) (<= ~__ste_email_signKey1~0 0) (<= 0 |outgoing__before__Encrypt___utac_acc__SignForward_spec__1_~tmp___0~10#1|) (<= ~__ste_email_isSigned1~0 0) (= ~bob~0 1) (<= |outgoing__before__Encrypt_getClientId_~handle#1| 1) (= ~__ste_client_forwardReceiver1~0 0) (<= 0 ~__ste_client_autoResponse0~0) (<= 1 |outgoing__before__Encrypt_~client#1|) (<= 0 ~queued_message~0) (<= 0 |old(~__ste_email_isSignatureVerified0~0)|) (= ~__ste_Client_AddressBook1_Alias2~0 0) (<= 0 ~__ste_email_isSignatureVerified1~0) (<= ~__SELECTED_FEATURE_AutoResponder~0 2147483647) (= ~__ste_client_outbuffer0~0 0) (<= 0 (+ ~__SELECTED_FEATURE_AutoResponder~0 2147483648)) (<= 789 ~__ste_client_privateKey2~0) (<= |outgoing__before__Encrypt___utac_acc__SignForward_spec__1_~tmp___0~10#1| 1) (<= 1 |outgoing__before__Encrypt_mail_~__utac__ad__arg1~0#1|) (<= 0 (+ |outgoing__before__Encrypt_~tmp~2#1| 2147483648)) (<= 0 |old(~__ste_email_isEncrypted1~0)|) (<= |outgoing__before__Encrypt_mail_~msg#1| 1) (= ~__ste_client_forwardReceiver0~0 0) (<= |outgoing__before__Encrypt_mail_~__utac__ad__arg1~0#1| 1) (= ~__ste_Client_Keyring2_User0~0 0) (= ~rjh~0 2) (= 0 ~__ste_Client_AddressBook0_Address1~0) (<= 0 (+ 2147483648 |outgoing__before__Encrypt_getClientId_#res#1|)) (= ~__ste_Client_AddressBook2_Address0~0 0) (= ~__ste_Client_Keyring1_PublicKey1~0 0) (<= 0 ~queued_client~0) (= ~__ste_Client_Keyring2_PublicKey0~0 0) (<= 0 ~__ste_email_isSignatureVerified0~0) (= ~__ste_Client_AddressBook1_Address0~0 0) (= ~__ste_client_name2~0.base 0) (<= 0 |old(~queued_client~0)|) (<= ~__ste_email_encryptionKey0~0 0) (<= |old(~__ste_email_encryptionKey1~0)| 0) (= ~__ste_email_subject1~0.base 0) (<= |old(~queue_empty~0)| 1) (= ~__ste_Client_AddressBook1_Alias0~0 0) (<= ~__SELECTED_FEATURE_Forward~0 2147483647) (<= |outgoing__before__Encrypt_getClientId_#res#1| 2147483647) (= ~__ste_Client_Keyring2_User2~0 0) (= ~head~0.base 0) (<= |outgoing__before__Encrypt_getClientId_~retValue_acc~22#1| 2147483647) (= ~__ste_Client_Keyring1_User1~0 0) (= |#NULL.offset| 0) (= ~__ste_Client_AddressBook2_Alias2~0 0) (<= 0 ~__ste_email_isSigned0~0) (<= 0 (+ ~__SELECTED_FEATURE_Forward~0 2147483648)) (<= 0 ~__ste_client_autoResponse2~0) (= ~__ste_email_subject1~0.offset 0) (= ~__ste_Client_AddressBook0_Alias2~0 0) (= ~__ste_ClientKeyring_size0~0 0) (= ~__ste_Client_AddressBook1_Address1~0 0) (= 0 ~__ste_Client_AddressBook0_Address0~0) (= ~__ste_client_outbuffer1~0 0) (<= 1 |outgoing__before__Encrypt___utac_acc__SignForward_spec__1_#in~client#1|) (<= |outgoing__before__Encrypt___utac_acc__SignForward_spec__1_~msg#1| 1) (= ~__ste_Client_AddressBook0_Alias1~0 0) (<= ~__ste_email_isEncrypted1~0 0) (<= |old(~__ste_email_isSignatureVerified0~0)| 0) (<= |old(~__ste_email_isSignatureVerified1~0)| 0) (<= ~__SELECTED_FEATURE_Verify~0 2147483647) (= ~__ste_client_name0~0.base 0) (= ~__ste_email_id1~0 0) (<= 0 |old(~__ste_email_isSignatureVerified1~0)|) (= ~__ste_client_outbuffer2~0 0) (<= 0 (+ ~__ste_client_idCounter0~0 2147483648)) (<= 2 ~__ste_email_to0~0) (<= 0 |#StackHeapBarrier|) (<= ~__ste_email_to0~0 2) (= ~__ste_ClientAddressBook_size2~0 0) (<= ~__ste_client_autoResponse2~0 0) (= ~__ste_email_body1~0.base 0) (<= 0 (+ ~__SELECTED_FEATURE_Verify~0 2147483648)) (= ~__ste_ClientKeyring_size2~0 0) (<= 0 ~__ste_email_encryptionKey0~0) (= |#NULL.base| 0) (<= ~queued_client~0 0))' at error location [2022-11-22 00:34:27,601 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:34:27,601 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:34:27,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-22 00:34:27,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162345259] [2022-11-22 00:34:27,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:34:27,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 00:34:27,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:27,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 00:34:27,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=334, Invalid=8408, Unknown=0, NotChecked=0, Total=8742 [2022-11-22 00:34:27,608 INFO L87 Difference]: Start difference. First operand 436 states and 576 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-22 00:34:28,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:28,065 INFO L93 Difference]: Finished difference Result 1002 states and 1393 transitions. [2022-11-22 00:34:28,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:34:28,065 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 132 [2022-11-22 00:34:28,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:28,071 INFO L225 Difference]: With dead ends: 1002 [2022-11-22 00:34:28,072 INFO L226 Difference]: Without dead ends: 787 [2022-11-22 00:34:28,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 302 SyntacticMatches, 4 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3579 ImplicationChecksByTransitivity, 283.0s TimeCoverageRelationStatistics Valid=334, Invalid=8408, Unknown=0, NotChecked=0, Total=8742 [2022-11-22 00:34:28,077 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 408 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 1600 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:28,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 1600 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:34:28,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2022-11-22 00:34:28,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 772. [2022-11-22 00:34:28,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 772 states, 531 states have (on average 1.3370998116760828) internal successors, (710), 541 states have internal predecessors, (710), 196 states have call successors, (196), 44 states have call predecessors, (196), 44 states have return successors, (195), 194 states have call predecessors, (195), 195 states have call successors, (195) [2022-11-22 00:34:28,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1101 transitions. [2022-11-22 00:34:28,129 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 1101 transitions. Word has length 132 [2022-11-22 00:34:28,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:28,130 INFO L495 AbstractCegarLoop]: Abstraction has 772 states and 1101 transitions. [2022-11-22 00:34:28,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-22 00:34:28,147 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 1101 transitions. [2022-11-22 00:34:28,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-22 00:34:28,151 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:28,151 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:34:28,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c42f9bd-1957-4bee-9f89-5a6e3e642b50/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 00:34:28,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c42f9bd-1957-4bee-9f89-5a6e3e642b50/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:34:28,360 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:34:28,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:28,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1387198780, now seen corresponding path program 1 times [2022-11-22 00:34:28,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:28,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901431393] [2022-11-22 00:34:28,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:28,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:28,470 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-22 00:34:28,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:28,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901431393] [2022-11-22 00:34:28,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901431393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:28,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:28,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:34:28,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157076184] [2022-11-22 00:34:28,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:28,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:34:28,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:28,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:34:28,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:28,473 INFO L87 Difference]: Start difference. First operand 772 states and 1101 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 00:34:28,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:28,663 INFO L93 Difference]: Finished difference Result 1799 states and 2621 transitions. [2022-11-22 00:34:28,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:34:28,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 138 [2022-11-22 00:34:28,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:28,670 INFO L225 Difference]: With dead ends: 1799 [2022-11-22 00:34:28,670 INFO L226 Difference]: Without dead ends: 1110 [2022-11-22 00:34:28,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:28,673 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 74 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:28,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 876 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:34:28,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2022-11-22 00:34:28,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 1105. [2022-11-22 00:34:28,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1105 states, 785 states have (on average 1.3554140127388534) internal successors, (1064), 795 states have internal predecessors, (1064), 275 states have call successors, (275), 44 states have call predecessors, (275), 44 states have return successors, (274), 273 states have call predecessors, (274), 274 states have call successors, (274) [2022-11-22 00:34:28,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1613 transitions. [2022-11-22 00:34:28,751 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1613 transitions. Word has length 138 [2022-11-22 00:34:28,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:28,751 INFO L495 AbstractCegarLoop]: Abstraction has 1105 states and 1613 transitions. [2022-11-22 00:34:28,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 00:34:28,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1613 transitions. [2022-11-22 00:34:28,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-22 00:34:28,757 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:28,757 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:34:28,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 00:34:28,757 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:34:28,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:28,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1267569292, now seen corresponding path program 1 times [2022-11-22 00:34:28,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:28,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083698775] [2022-11-22 00:34:28,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:28,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:28,856 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-22 00:34:28,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:28,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083698775] [2022-11-22 00:34:28,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083698775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:28,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:28,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:34:28,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090466388] [2022-11-22 00:34:28,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:28,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:34:28,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:28,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:34:28,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:28,859 INFO L87 Difference]: Start difference. First operand 1105 states and 1613 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 00:34:29,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:29,079 INFO L93 Difference]: Finished difference Result 2593 states and 3853 transitions. [2022-11-22 00:34:29,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:34:29,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 139 [2022-11-22 00:34:29,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:29,088 INFO L225 Difference]: With dead ends: 2593 [2022-11-22 00:34:29,088 INFO L226 Difference]: Without dead ends: 1611 [2022-11-22 00:34:29,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:29,092 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 72 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:29,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 856 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:34:29,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-11-22 00:34:29,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1606. [2022-11-22 00:34:29,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1167 states have (on average 1.3693230505569838) internal successors, (1598), 1177 states have internal predecessors, (1598), 394 states have call successors, (394), 44 states have call predecessors, (394), 44 states have return successors, (393), 392 states have call predecessors, (393), 393 states have call successors, (393) [2022-11-22 00:34:29,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 2385 transitions. [2022-11-22 00:34:29,213 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 2385 transitions. Word has length 139 [2022-11-22 00:34:29,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:29,213 INFO L495 AbstractCegarLoop]: Abstraction has 1606 states and 2385 transitions. [2022-11-22 00:34:29,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 00:34:29,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 2385 transitions. [2022-11-22 00:34:29,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-22 00:34:29,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:29,221 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:34:29,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 00:34:29,222 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:34:29,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:29,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1787407101, now seen corresponding path program 1 times [2022-11-22 00:34:29,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:29,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308581667] [2022-11-22 00:34:29,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:29,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:29,321 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-22 00:34:29,322 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:29,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308581667] [2022-11-22 00:34:29,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308581667] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:29,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:29,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:34:29,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880695292] [2022-11-22 00:34:29,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:29,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:34:29,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:29,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:34:29,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:29,324 INFO L87 Difference]: Start difference. First operand 1606 states and 2385 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 00:34:29,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:29,622 INFO L93 Difference]: Finished difference Result 3746 states and 5636 transitions. [2022-11-22 00:34:29,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:34:29,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 140 [2022-11-22 00:34:29,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:29,634 INFO L225 Difference]: With dead ends: 3746 [2022-11-22 00:34:29,635 INFO L226 Difference]: Without dead ends: 2361 [2022-11-22 00:34:29,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:29,639 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 70 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:29,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 851 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:34:29,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2361 states. [2022-11-22 00:34:29,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2361 to 2356. [2022-11-22 00:34:29,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2356 states, 1755 states have (on average 1.3794871794871795) internal successors, (2421), 1765 states have internal predecessors, (2421), 556 states have call successors, (556), 44 states have call predecessors, (556), 44 states have return successors, (555), 554 states have call predecessors, (555), 555 states have call successors, (555) [2022-11-22 00:34:29,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2356 states to 2356 states and 3532 transitions. [2022-11-22 00:34:29,818 INFO L78 Accepts]: Start accepts. Automaton has 2356 states and 3532 transitions. Word has length 140 [2022-11-22 00:34:29,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:29,818 INFO L495 AbstractCegarLoop]: Abstraction has 2356 states and 3532 transitions. [2022-11-22 00:34:29,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 00:34:29,819 INFO L276 IsEmpty]: Start isEmpty. Operand 2356 states and 3532 transitions. [2022-11-22 00:34:29,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-22 00:34:29,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:29,827 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:34:29,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 00:34:29,827 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:34:29,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:29,828 INFO L85 PathProgramCache]: Analyzing trace with hash -995418836, now seen corresponding path program 1 times [2022-11-22 00:34:29,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:29,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738360384] [2022-11-22 00:34:29,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:29,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:29,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:29,933 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-22 00:34:29,933 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:29,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738360384] [2022-11-22 00:34:29,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738360384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:29,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:29,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:34:29,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161877903] [2022-11-22 00:34:29,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:29,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:34:29,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:29,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:34:29,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:29,935 INFO L87 Difference]: Start difference. First operand 2356 states and 3532 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 00:34:30,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:30,299 INFO L93 Difference]: Finished difference Result 5513 states and 8361 transitions. [2022-11-22 00:34:30,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:34:30,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 141 [2022-11-22 00:34:30,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:30,317 INFO L225 Difference]: With dead ends: 5513 [2022-11-22 00:34:30,317 INFO L226 Difference]: Without dead ends: 3549 [2022-11-22 00:34:30,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:30,324 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 68 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:30,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 851 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:34:30,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3549 states. [2022-11-22 00:34:30,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3549 to 3544. [2022-11-22 00:34:30,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3544 states, 2698 states have (on average 1.3873239436619718) internal successors, (3743), 2708 states have internal predecessors, (3743), 801 states have call successors, (801), 44 states have call predecessors, (801), 44 states have return successors, (800), 799 states have call predecessors, (800), 800 states have call successors, (800) [2022-11-22 00:34:30,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3544 states to 3544 states and 5344 transitions. [2022-11-22 00:34:30,659 INFO L78 Accepts]: Start accepts. Automaton has 3544 states and 5344 transitions. Word has length 141 [2022-11-22 00:34:30,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:30,660 INFO L495 AbstractCegarLoop]: Abstraction has 3544 states and 5344 transitions. [2022-11-22 00:34:30,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 00:34:30,660 INFO L276 IsEmpty]: Start isEmpty. Operand 3544 states and 5344 transitions. [2022-11-22 00:34:30,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-22 00:34:30,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:30,671 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:34:30,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 00:34:30,671 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:34:30,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:30,672 INFO L85 PathProgramCache]: Analyzing trace with hash -652374712, now seen corresponding path program 1 times [2022-11-22 00:34:30,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:30,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238356095] [2022-11-22 00:34:30,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:30,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:30,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:30,773 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-22 00:34:30,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:30,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238356095] [2022-11-22 00:34:30,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238356095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:30,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:30,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:34:30,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23724821] [2022-11-22 00:34:30,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:30,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:34:30,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:30,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:34:30,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:30,776 INFO L87 Difference]: Start difference. First operand 3544 states and 5344 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 00:34:31,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:31,302 INFO L93 Difference]: Finished difference Result 8747 states and 13300 transitions. [2022-11-22 00:34:31,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:34:31,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 142 [2022-11-22 00:34:31,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:31,330 INFO L225 Difference]: With dead ends: 8747 [2022-11-22 00:34:31,330 INFO L226 Difference]: Without dead ends: 5762 [2022-11-22 00:34:31,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:31,339 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 66 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:31,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 873 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:34:31,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5762 states. [2022-11-22 00:34:31,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5762 to 5757. [2022-11-22 00:34:31,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5757 states, 4418 states have (on average 1.3813942960615664) internal successors, (6103), 4428 states have internal predecessors, (6103), 1294 states have call successors, (1294), 44 states have call predecessors, (1294), 44 states have return successors, (1293), 1292 states have call predecessors, (1293), 1293 states have call successors, (1293) [2022-11-22 00:34:31,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5757 states to 5757 states and 8690 transitions. [2022-11-22 00:34:31,874 INFO L78 Accepts]: Start accepts. Automaton has 5757 states and 8690 transitions. Word has length 142 [2022-11-22 00:34:31,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:31,875 INFO L495 AbstractCegarLoop]: Abstraction has 5757 states and 8690 transitions. [2022-11-22 00:34:31,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 00:34:31,876 INFO L276 IsEmpty]: Start isEmpty. Operand 5757 states and 8690 transitions. [2022-11-22 00:34:31,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-22 00:34:31,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:31,890 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:34:31,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 00:34:31,890 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:34:31,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:31,891 INFO L85 PathProgramCache]: Analyzing trace with hash 445172449, now seen corresponding path program 1 times [2022-11-22 00:34:31,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:31,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708417107] [2022-11-22 00:34:31,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:31,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:32,028 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-22 00:34:32,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:32,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708417107] [2022-11-22 00:34:32,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708417107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:32,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:32,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:34:32,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426328947] [2022-11-22 00:34:32,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:32,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:34:32,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:32,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:34:32,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:32,031 INFO L87 Difference]: Start difference. First operand 5757 states and 8690 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 00:34:32,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:32,869 INFO L93 Difference]: Finished difference Result 14311 states and 21844 transitions. [2022-11-22 00:34:32,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:34:32,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 143 [2022-11-22 00:34:32,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:32,937 INFO L225 Difference]: With dead ends: 14311 [2022-11-22 00:34:32,938 INFO L226 Difference]: Without dead ends: 9463 [2022-11-22 00:34:32,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:32,951 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 64 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:32,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 856 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:34:32,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9463 states. [2022-11-22 00:34:33,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9463 to 9458. [2022-11-22 00:34:33,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9458 states, 7297 states have (on average 1.3846786350555023) internal successors, (10104), 7307 states have internal predecessors, (10104), 2116 states have call successors, (2116), 44 states have call predecessors, (2116), 44 states have return successors, (2115), 2114 states have call predecessors, (2115), 2115 states have call successors, (2115) [2022-11-22 00:34:33,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9458 states to 9458 states and 14335 transitions. [2022-11-22 00:34:33,937 INFO L78 Accepts]: Start accepts. Automaton has 9458 states and 14335 transitions. Word has length 143 [2022-11-22 00:34:33,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:33,938 INFO L495 AbstractCegarLoop]: Abstraction has 9458 states and 14335 transitions. [2022-11-22 00:34:33,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 00:34:33,938 INFO L276 IsEmpty]: Start isEmpty. Operand 9458 states and 14335 transitions. [2022-11-22 00:34:33,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-22 00:34:33,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:33,955 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:34:33,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 00:34:33,955 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:34:33,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:33,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1486557985, now seen corresponding path program 1 times [2022-11-22 00:34:33,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:33,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277372888] [2022-11-22 00:34:33,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:33,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:34,082 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-22 00:34:34,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:34,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277372888] [2022-11-22 00:34:34,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277372888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:34,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:34,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:34:34,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180347589] [2022-11-22 00:34:34,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:34,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:34:34,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:34,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:34:34,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:34,086 INFO L87 Difference]: Start difference. First operand 9458 states and 14335 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 00:34:35,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:35,397 INFO L93 Difference]: Finished difference Result 23684 states and 36055 transitions. [2022-11-22 00:34:35,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:34:35,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 144 [2022-11-22 00:34:35,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:35,457 INFO L225 Difference]: With dead ends: 23684 [2022-11-22 00:34:35,457 INFO L226 Difference]: Without dead ends: 15675 [2022-11-22 00:34:35,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:35,481 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 62 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:35,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 866 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:34:35,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15675 states. [2022-11-22 00:34:37,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15675 to 15670. [2022-11-22 00:34:37,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15670 states, 12306 states have (on average 1.3808711197789696) internal successors, (16993), 12316 states have internal predecessors, (16993), 3319 states have call successors, (3319), 44 states have call predecessors, (3319), 44 states have return successors, (3318), 3317 states have call predecessors, (3318), 3318 states have call successors, (3318) [2022-11-22 00:34:37,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15670 states to 15670 states and 23630 transitions. [2022-11-22 00:34:37,116 INFO L78 Accepts]: Start accepts. Automaton has 15670 states and 23630 transitions. Word has length 144 [2022-11-22 00:34:37,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:37,118 INFO L495 AbstractCegarLoop]: Abstraction has 15670 states and 23630 transitions. [2022-11-22 00:34:37,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 00:34:37,119 INFO L276 IsEmpty]: Start isEmpty. Operand 15670 states and 23630 transitions. [2022-11-22 00:34:37,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-22 00:34:37,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:37,141 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:34:37,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-22 00:34:37,142 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:34:37,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:37,142 INFO L85 PathProgramCache]: Analyzing trace with hash -656810631, now seen corresponding path program 1 times [2022-11-22 00:34:37,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:37,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890724002] [2022-11-22 00:34:37,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:37,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:37,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:37,269 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-22 00:34:37,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:37,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890724002] [2022-11-22 00:34:37,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890724002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:37,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:37,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:34:37,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698965539] [2022-11-22 00:34:37,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:37,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:34:37,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:37,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:34:37,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:37,274 INFO L87 Difference]: Start difference. First operand 15670 states and 23630 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 00:34:39,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:39,366 INFO L93 Difference]: Finished difference Result 41291 states and 62657 transitions. [2022-11-22 00:34:39,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:34:39,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 145 [2022-11-22 00:34:39,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:39,474 INFO L225 Difference]: With dead ends: 41291 [2022-11-22 00:34:39,474 INFO L226 Difference]: Without dead ends: 27629 [2022-11-22 00:34:39,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:39,508 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 60 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:39,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 857 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:34:39,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27629 states. [2022-11-22 00:34:41,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27629 to 27624. [2022-11-22 00:34:42,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27624 states, 21810 states have (on average 1.3775790921595599) internal successors, (30045), 21820 states have internal predecessors, (30045), 5769 states have call successors, (5769), 44 states have call predecessors, (5769), 44 states have return successors, (5768), 5767 states have call predecessors, (5768), 5768 states have call successors, (5768) [2022-11-22 00:34:42,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27624 states to 27624 states and 41582 transitions. [2022-11-22 00:34:42,095 INFO L78 Accepts]: Start accepts. Automaton has 27624 states and 41582 transitions. Word has length 145 [2022-11-22 00:34:42,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:42,096 INFO L495 AbstractCegarLoop]: Abstraction has 27624 states and 41582 transitions. [2022-11-22 00:34:42,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 00:34:42,096 INFO L276 IsEmpty]: Start isEmpty. Operand 27624 states and 41582 transitions. [2022-11-22 00:34:42,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-22 00:34:42,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:42,114 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:34:42,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 00:34:42,114 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:34:42,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:42,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1849094834, now seen corresponding path program 1 times [2022-11-22 00:34:42,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:42,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895849652] [2022-11-22 00:34:42,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:42,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:42,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:42,217 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-22 00:34:42,217 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:42,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895849652] [2022-11-22 00:34:42,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895849652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:42,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:42,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:34:42,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332261144] [2022-11-22 00:34:42,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:42,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:34:42,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:42,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:34:42,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:42,220 INFO L87 Difference]: Start difference. First operand 27624 states and 41582 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 00:34:45,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:45,775 INFO L93 Difference]: Finished difference Result 74213 states and 112539 transitions. [2022-11-22 00:34:45,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:34:45,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 146 [2022-11-22 00:34:45,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:46,096 INFO L225 Difference]: With dead ends: 74213 [2022-11-22 00:34:46,097 INFO L226 Difference]: Without dead ends: 49380 [2022-11-22 00:34:46,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:46,143 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 58 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:46,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 856 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:34:46,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49380 states. [2022-11-22 00:34:50,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49380 to 49375. [2022-11-22 00:34:50,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49375 states, 39048 states have (on average 1.3769719319811513) internal successors, (53768), 39058 states have internal predecessors, (53768), 10282 states have call successors, (10282), 44 states have call predecessors, (10282), 44 states have return successors, (10281), 10280 states have call predecessors, (10281), 10281 states have call successors, (10281) [2022-11-22 00:34:50,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49375 states to 49375 states and 74331 transitions. [2022-11-22 00:34:50,513 INFO L78 Accepts]: Start accepts. Automaton has 49375 states and 74331 transitions. Word has length 146 [2022-11-22 00:34:50,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:50,514 INFO L495 AbstractCegarLoop]: Abstraction has 49375 states and 74331 transitions. [2022-11-22 00:34:50,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 00:34:50,514 INFO L276 IsEmpty]: Start isEmpty. Operand 49375 states and 74331 transitions. [2022-11-22 00:34:50,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-22 00:34:50,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:50,539 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:34:50,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-22 00:34:50,540 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:34:50,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:50,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1411438067, now seen corresponding path program 1 times [2022-11-22 00:34:50,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:50,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935695581] [2022-11-22 00:34:50,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:50,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:50,642 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-22 00:34:50,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:50,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935695581] [2022-11-22 00:34:50,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935695581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:50,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:50,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:34:50,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343835483] [2022-11-22 00:34:50,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:50,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:34:50,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:50,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:34:50,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:50,645 INFO L87 Difference]: Start difference. First operand 49375 states and 74331 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 00:34:56,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:56,609 INFO L93 Difference]: Finished difference Result 90883 states and 137203 transitions. [2022-11-22 00:34:56,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:34:56,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 147 [2022-11-22 00:34:56,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:56,951 INFO L225 Difference]: With dead ends: 90883 [2022-11-22 00:34:56,951 INFO L226 Difference]: Without dead ends: 90668 [2022-11-22 00:34:56,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:56,983 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 56 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:56,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 857 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:34:57,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90668 states.