./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0 --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 9244be1607acf28cf3da39a66e263e3f7b227fe42ed993f89a6311649f8ded26 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 16:25:02,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:25:02,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:25:02,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:25:02,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:25:02,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:25:02,956 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:25:02,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:25:02,963 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:25:02,964 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:25:02,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:25:02,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:25:02,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:25:02,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:25:02,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:25:02,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:25:02,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:25:02,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:25:02,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:25:02,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:25:02,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:25:02,993 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:25:02,994 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:25:02,996 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:25:02,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:25:03,005 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:25:03,005 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:25:03,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:25:03,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:25:03,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:25:03,010 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:25:03,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:25:03,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:25:03,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:25:03,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:25:03,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:25:03,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:25:03,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:25:03,017 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:25:03,017 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:25:03,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:25:03,019 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 16:25:03,069 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:25:03,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:25:03,070 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:25:03,071 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:25:03,072 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:25:03,072 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:25:03,072 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:25:03,073 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:25:03,073 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:25:03,073 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:25:03,074 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:25:03,075 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:25:03,075 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:25:03,075 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:25:03,076 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:25:03,076 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:25:03,076 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:25:03,077 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:25:03,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:25:03,078 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 16:25:03,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:25:03,079 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 16:25:03,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:25:03,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:25:03,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:25:03,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:25:03,082 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 16:25:03,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:25:03,082 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:25:03,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:25:03,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:25:03,088 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:25:03,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:25:03,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:25:03,089 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:25:03,090 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:25:03,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:25:03,090 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:25:03,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:25:03,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:25:03,091 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:25:03,091 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_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9244be1607acf28cf3da39a66e263e3f7b227fe42ed993f89a6311649f8ded26 [2022-11-16 16:25:03,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:25:03,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:25:03,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:25:03,363 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:25:03,363 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:25:03,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/product-lines/email_spec8_product29.cil.c [2022-11-16 16:25:03,426 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/data/a9b88970a/22ac58f97ccb4808b62068fae22d2fef/FLAG0b5703296 [2022-11-16 16:25:04,026 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:25:04,027 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/sv-benchmarks/c/product-lines/email_spec8_product29.cil.c [2022-11-16 16:25:04,042 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/data/a9b88970a/22ac58f97ccb4808b62068fae22d2fef/FLAG0b5703296 [2022-11-16 16:25:04,391 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/data/a9b88970a/22ac58f97ccb4808b62068fae22d2fef [2022-11-16 16:25:04,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:25:04,394 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:25:04,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:25:04,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:25:04,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:25:04,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:25:04" (1/1) ... [2022-11-16 16:25:04,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f9235f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:04, skipping insertion in model container [2022-11-16 16:25:04,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:25:04" (1/1) ... [2022-11-16 16:25:04,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:25:04,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:25:04,941 WARN L229 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_a2b792de-77c2-4c98-bb0b-b76536bd7c19/sv-benchmarks/c/product-lines/email_spec8_product29.cil.c[29472,29485] [2022-11-16 16:25:05,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:25:05,165 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:25:05,257 WARN L229 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_a2b792de-77c2-4c98-bb0b-b76536bd7c19/sv-benchmarks/c/product-lines/email_spec8_product29.cil.c[29472,29485] [2022-11-16 16:25:05,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:25:05,333 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:25:05,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:05 WrapperNode [2022-11-16 16:25:05,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:25:05,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:25:05,335 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:25:05,336 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:25:05,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:05" (1/1) ... [2022-11-16 16:25:05,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:05" (1/1) ... [2022-11-16 16:25:05,418 INFO L138 Inliner]: procedures = 132, calls = 232, calls flagged for inlining = 56, calls inlined = 48, statements flattened = 939 [2022-11-16 16:25:05,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:25:05,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:25:05,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:25:05,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:25:05,429 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:05" (1/1) ... [2022-11-16 16:25:05,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:05" (1/1) ... [2022-11-16 16:25:05,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:05" (1/1) ... [2022-11-16 16:25:05,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:05" (1/1) ... [2022-11-16 16:25:05,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:05" (1/1) ... [2022-11-16 16:25:05,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:05" (1/1) ... [2022-11-16 16:25:05,522 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:05" (1/1) ... [2022-11-16 16:25:05,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:05" (1/1) ... [2022-11-16 16:25:05,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:25:05,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:25:05,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:25:05,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:25:05,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:05" (1/1) ... [2022-11-16 16:25:05,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:25:05,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:25:05,586 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:25:05,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:25:05,639 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-16 16:25:05,639 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-16 16:25:05,639 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-16 16:25:05,639 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-16 16:25:05,639 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-16 16:25:05,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-16 16:25:05,640 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-16 16:25:05,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-16 16:25:05,640 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-16 16:25:05,640 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-16 16:25:05,640 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-16 16:25:05,640 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-16 16:25:05,640 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-16 16:25:05,641 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-16 16:25:05,641 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-16 16:25:05,641 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-16 16:25:05,641 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-16 16:25:05,641 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-16 16:25:05,641 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-16 16:25:05,641 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-16 16:25:05,641 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-16 16:25:05,642 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-16 16:25:05,642 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-16 16:25:05,642 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-16 16:25:05,642 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-16 16:25:05,642 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-16 16:25:05,642 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-16 16:25:05,642 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-16 16:25:05,642 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-16 16:25:05,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:25:05,643 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-16 16:25:05,643 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-16 16:25:05,643 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-16 16:25:05,643 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-16 16:25:05,643 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-16 16:25:05,643 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-16 16:25:05,644 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-16 16:25:05,644 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-16 16:25:05,644 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-16 16:25:05,644 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-16 16:25:05,644 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-16 16:25:05,644 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-16 16:25:05,645 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-16 16:25:05,645 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-16 16:25:05,646 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-11-16 16:25:05,646 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-11-16 16:25:05,647 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-16 16:25:05,647 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-16 16:25:05,648 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-16 16:25:05,649 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-16 16:25:05,649 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-16 16:25:05,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-16 16:25:05,649 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-16 16:25:05,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-16 16:25:05,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 16:25:05,650 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-16 16:25:05,650 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-16 16:25:05,650 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-16 16:25:05,650 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-16 16:25:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:25:05,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:25:05,867 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:25:05,869 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:25:06,960 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:25:07,529 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:25:07,530 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 16:25:07,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:25:07 BoogieIcfgContainer [2022-11-16 16:25:07,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:25:07,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:25:07,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:25:07,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:25:07,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:25:04" (1/3) ... [2022-11-16 16:25:07,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3809d2d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:25:07, skipping insertion in model container [2022-11-16 16:25:07,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:05" (2/3) ... [2022-11-16 16:25:07,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3809d2d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:25:07, skipping insertion in model container [2022-11-16 16:25:07,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:25:07" (3/3) ... [2022-11-16 16:25:07,545 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product29.cil.c [2022-11-16 16:25:07,564 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:25:07,565 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 16:25:07,643 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 16:25:07,652 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;@43051d06, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:25:07,653 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 16:25:07,659 INFO L276 IsEmpty]: Start isEmpty. Operand has 213 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 125 states have internal predecessors, (157), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2022-11-16 16:25:07,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-16 16:25:07,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:25:07,673 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-16 16:25:07,673 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:25:07,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:25:07,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1578249797, now seen corresponding path program 1 times [2022-11-16 16:25:07,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:25:07,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247949640] [2022-11-16 16:25:07,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:25:07,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:25:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:25:08,201 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 16:25:08,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:25:08,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247949640] [2022-11-16 16:25:08,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247949640] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:25:08,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:25:08,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:25:08,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798510360] [2022-11-16 16:25:08,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:25:08,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 16:25:08,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:25:08,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 16:25:08,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 16:25:08,249 INFO L87 Difference]: Start difference. First operand has 213 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 125 states have internal predecessors, (157), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-16 16:25:08,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:25:08,461 INFO L93 Difference]: Finished difference Result 334 states and 437 transitions. [2022-11-16 16:25:08,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 16:25:08,463 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2022-11-16 16:25:08,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:25:08,486 INFO L225 Difference]: With dead ends: 334 [2022-11-16 16:25:08,486 INFO L226 Difference]: Without dead ends: 210 [2022-11-16 16:25:08,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 16:25:08,502 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:25:08,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 241 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:25:08,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-11-16 16:25:08,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2022-11-16 16:25:08,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 118 states have (on average 1.2796610169491525) internal successors, (151), 122 states have internal predecessors, (151), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-16 16:25:08,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 276 transitions. [2022-11-16 16:25:08,593 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 276 transitions. Word has length 71 [2022-11-16 16:25:08,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:25:08,598 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 276 transitions. [2022-11-16 16:25:08,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-16 16:25:08,599 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 276 transitions. [2022-11-16 16:25:08,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-16 16:25:08,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:25:08,609 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-16 16:25:08,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 16:25:08,609 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:25:08,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:25:08,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1226849126, now seen corresponding path program 1 times [2022-11-16 16:25:08,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:25:08,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473989926] [2022-11-16 16:25:08,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:25:08,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:25:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:25:08,937 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 16:25:08,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:25:08,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473989926] [2022-11-16 16:25:08,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473989926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:25:08,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:25:08,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:25:08,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950078202] [2022-11-16 16:25:08,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:25:08,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:25:08,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:25:08,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:25:08,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:25:08,943 INFO L87 Difference]: Start difference. First operand 210 states and 276 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-16 16:25:09,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:25:09,104 INFO L93 Difference]: Finished difference Result 330 states and 422 transitions. [2022-11-16 16:25:09,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:25:09,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2022-11-16 16:25:09,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:25:09,112 INFO L225 Difference]: With dead ends: 330 [2022-11-16 16:25:09,112 INFO L226 Difference]: Without dead ends: 212 [2022-11-16 16:25:09,117 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 [2022-11-16 16:25:09,118 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 0 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:25:09,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 475 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:25:09,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-11-16 16:25:09,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2022-11-16 16:25:09,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 120 states have (on average 1.275) internal successors, (153), 124 states have internal predecessors, (153), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-16 16:25:09,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 278 transitions. [2022-11-16 16:25:09,148 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 278 transitions. Word has length 72 [2022-11-16 16:25:09,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:25:09,149 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 278 transitions. [2022-11-16 16:25:09,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-16 16:25:09,150 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 278 transitions. [2022-11-16 16:25:09,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-16 16:25:09,155 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:25:09,156 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 16:25:09,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 16:25:09,156 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:25:09,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:25:09,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1365227647, now seen corresponding path program 1 times [2022-11-16 16:25:09,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:25:09,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031718728] [2022-11-16 16:25:09,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:25:09,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:25:09,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:25:09,345 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 16:25:09,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:25:09,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031718728] [2022-11-16 16:25:09,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031718728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:25:09,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:25:09,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:25:09,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176291780] [2022-11-16 16:25:09,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:25:09,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:25:09,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:25:09,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:25:09,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:25:09,349 INFO L87 Difference]: Start difference. First operand 212 states and 278 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-16 16:25:09,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:25:09,506 INFO L93 Difference]: Finished difference Result 459 states and 623 transitions. [2022-11-16 16:25:09,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:25:09,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2022-11-16 16:25:09,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:25:09,509 INFO L225 Difference]: With dead ends: 459 [2022-11-16 16:25:09,509 INFO L226 Difference]: Without dead ends: 265 [2022-11-16 16:25:09,513 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 [2022-11-16 16:25:09,515 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 59 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:25:09,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 492 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:25:09,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-11-16 16:25:09,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 260. [2022-11-16 16:25:09,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 154 states have (on average 1.3506493506493507) internal successors, (208), 158 states have internal predecessors, (208), 77 states have call successors, (77), 28 states have call predecessors, (77), 28 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2022-11-16 16:25:09,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 361 transitions. [2022-11-16 16:25:09,537 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 361 transitions. Word has length 77 [2022-11-16 16:25:09,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:25:09,537 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 361 transitions. [2022-11-16 16:25:09,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-16 16:25:09,537 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 361 transitions. [2022-11-16 16:25:09,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-16 16:25:09,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:25:09,539 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 16:25:09,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 16:25:09,540 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:25:09,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:25:09,540 INFO L85 PathProgramCache]: Analyzing trace with hash -409624614, now seen corresponding path program 1 times [2022-11-16 16:25:09,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:25:09,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229160397] [2022-11-16 16:25:09,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:25:09,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:25:09,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:25:09,708 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 16:25:09,708 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:25:09,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229160397] [2022-11-16 16:25:09,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229160397] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:25:09,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376204268] [2022-11-16 16:25:09,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:25:09,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:25:09,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:25:09,712 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:25:09,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 16:25:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:25:10,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 16:25:10,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:25:10,160 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 16:25:10,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:25:10,250 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 16:25:10,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376204268] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:25:10,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1296321957] [2022-11-16 16:25:10,270 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-11-16 16:25:10,270 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:25:10,274 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:25:10,279 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:25:10,280 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:25:40,679 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-16 16:25:40,993 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-11-16 16:25:41,297 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:25:55,743 WARN L233 SmtUtils]: Spent 5.94s on a formula simplification. DAG size of input: 443 DAG size of output: 327 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:26:02,155 WARN L233 SmtUtils]: Spent 6.29s on a formula simplification. DAG size of input: 466 DAG size of output: 347 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:26:09,276 WARN L233 SmtUtils]: Spent 6.23s on a formula simplification. DAG size of input: 448 DAG size of output: 305 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:26:15,903 WARN L233 SmtUtils]: Spent 6.48s on a formula simplification. DAG size of input: 471 DAG size of output: 325 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:26:37,509 WARN L233 SmtUtils]: Spent 6.83s on a formula simplification. DAG size of input: 508 DAG size of output: 366 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:26:45,933 WARN L233 SmtUtils]: Spent 7.10s on a formula simplification. DAG size of input: 518 DAG size of output: 353 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:26:59,107 WARN L233 SmtUtils]: Spent 12.84s on a formula simplification. DAG size of input: 589 DAG size of output: 332 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:27:19,926 WARN L233 SmtUtils]: Spent 20.46s on a formula simplification. DAG size of input: 589 DAG size of output: 456 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:27:30,468 WARN L233 SmtUtils]: Spent 6.75s on a formula simplification. DAG size of input: 576 DAG size of output: 326 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:27:31,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1296321957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:27:31,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 16:27:31,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-11-16 16:27:31,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248074443] [2022-11-16 16:27:31,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:27:31,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-16 16:27:31,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:27:31,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-16 16:27:31,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=569, Unknown=0, NotChecked=0, Total=650 [2022-11-16 16:27:31,809 INFO L87 Difference]: Start difference. First operand 260 states and 361 transitions. Second operand has 21 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2022-11-16 16:27:54,812 WARN L233 SmtUtils]: Spent 20.96s on a formula simplification. DAG size of input: 595 DAG size of output: 455 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:28:05,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:28:05,156 INFO L93 Difference]: Finished difference Result 602 states and 889 transitions. [2022-11-16 16:28:05,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 16:28:05,157 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 78 [2022-11-16 16:28:05,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:28:05,160 INFO L225 Difference]: With dead ends: 602 [2022-11-16 16:28:05,160 INFO L226 Difference]: Without dead ends: 360 [2022-11-16 16:28:05,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 131.7s TimeCoverageRelationStatistics Valid=90, Invalid=612, Unknown=0, NotChecked=0, Total=702 [2022-11-16 16:28:05,162 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 170 mSDsluCounter, 3714 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 4000 SdHoareTripleChecker+Invalid, 2395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-11-16 16:28:05,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 4000 Invalid, 2395 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2022-11-16 16:28:05,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-11-16 16:28:05,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 283. [2022-11-16 16:28:05,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 176 states have (on average 1.3693181818181819) internal successors, (241), 180 states have internal predecessors, (241), 77 states have call successors, (77), 29 states have call predecessors, (77), 29 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2022-11-16 16:28:05,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 394 transitions. [2022-11-16 16:28:05,339 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 394 transitions. Word has length 78 [2022-11-16 16:28:05,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:28:05,339 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 394 transitions. [2022-11-16 16:28:05,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2022-11-16 16:28:05,340 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 394 transitions. [2022-11-16 16:28:05,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-16 16:28:05,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:28:05,342 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-16 16:28:05,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 16:28:05,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:28:05,547 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:28:05,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:28:05,547 INFO L85 PathProgramCache]: Analyzing trace with hash 854207253, now seen corresponding path program 1 times [2022-11-16 16:28:05,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:28:05,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051719978] [2022-11-16 16:28:05,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:28:05,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:28:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:28:05,649 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-16 16:28:05,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:28:05,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051719978] [2022-11-16 16:28:05,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051719978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:28:05,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:28:05,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:28:05,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306880120] [2022-11-16 16:28:05,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:28:05,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:28:05,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:28:05,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:28:05,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:28:05,652 INFO L87 Difference]: Start difference. First operand 283 states and 394 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 16:28:06,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:28:06,080 INFO L93 Difference]: Finished difference Result 669 states and 968 transitions. [2022-11-16 16:28:06,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:28:06,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 83 [2022-11-16 16:28:06,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:28:06,085 INFO L225 Difference]: With dead ends: 669 [2022-11-16 16:28:06,085 INFO L226 Difference]: Without dead ends: 410 [2022-11-16 16:28:06,086 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 [2022-11-16 16:28:06,087 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 57 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:28:06,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 497 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:28:06,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-11-16 16:28:06,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 405. [2022-11-16 16:28:06,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 267 states have (on average 1.4269662921348314) internal successors, (381), 271 states have internal predecessors, (381), 108 states have call successors, (108), 29 states have call predecessors, (108), 29 states have return successors, (107), 106 states have call predecessors, (107), 107 states have call successors, (107) [2022-11-16 16:28:06,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 596 transitions. [2022-11-16 16:28:06,389 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 596 transitions. Word has length 83 [2022-11-16 16:28:06,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:28:06,392 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 596 transitions. [2022-11-16 16:28:06,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 16:28:06,392 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 596 transitions. [2022-11-16 16:28:06,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-16 16:28:06,403 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:28:06,403 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-16 16:28:06,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 16:28:06,404 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:28:06,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:28:06,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1350617905, now seen corresponding path program 1 times [2022-11-16 16:28:06,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:28:06,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667636067] [2022-11-16 16:28:06,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:28:06,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:28:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:28:06,563 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-16 16:28:06,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:28:06,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667636067] [2022-11-16 16:28:06,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667636067] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:28:06,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96078398] [2022-11-16 16:28:06,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:28:06,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:28:06,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:28:06,565 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:28:06,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 16:28:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:28:06,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 1087 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 16:28:06,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:28:06,928 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-16 16:28:06,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:28:06,995 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-16 16:28:06,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96078398] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:28:06,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1256814357] [2022-11-16 16:28:06,999 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-16 16:28:06,999 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:28:07,000 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:28:07,000 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:28:07,000 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:28:46,642 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-16 16:28:46,939 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 444 for LOIs [2022-11-16 16:28:47,223 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:29:01,578 WARN L233 SmtUtils]: Spent 5.88s on a formula simplification. DAG size of input: 443 DAG size of output: 327 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:29:07,924 WARN L233 SmtUtils]: Spent 6.25s on a formula simplification. DAG size of input: 466 DAG size of output: 347 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:29:14,680 WARN L233 SmtUtils]: Spent 5.88s on a formula simplification. DAG size of input: 444 DAG size of output: 328 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:29:21,057 WARN L233 SmtUtils]: Spent 6.25s on a formula simplification. DAG size of input: 467 DAG size of output: 348 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:29:42,736 WARN L233 SmtUtils]: Spent 6.78s on a formula simplification. DAG size of input: 508 DAG size of output: 366 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:29:51,269 WARN L233 SmtUtils]: Spent 7.21s on a formula simplification. DAG size of input: 518 DAG size of output: 353 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:30:04,713 WARN L233 SmtUtils]: Spent 12.97s on a formula simplification. DAG size of input: 597 DAG size of output: 337 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:30:18,134 WARN L233 SmtUtils]: Spent 13.03s on a formula simplification. DAG size of input: 597 DAG size of output: 337 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:30:29,734 WARN L233 SmtUtils]: Spent 7.79s on a formula simplification. DAG size of input: 576 DAG size of output: 339 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:30:38,120 WARN L233 SmtUtils]: Spent 7.99s on a formula simplification. DAG size of input: 576 DAG size of output: 346 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:30:46,433 WARN L233 SmtUtils]: Spent 7.89s on a formula simplification. DAG size of input: 574 DAG size of output: 344 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:30:50,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1256814357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:30:50,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 16:30:50,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-16 16:30:50,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596979980] [2022-11-16 16:30:50,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:30:50,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 16:30:50,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:30:50,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 16:30:50,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=765, Unknown=0, NotChecked=0, Total=870 [2022-11-16 16:30:50,656 INFO L87 Difference]: Start difference. First operand 405 states and 596 transitions. Second operand has 25 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2022-11-16 16:30:58,603 WARN L233 SmtUtils]: Spent 6.30s on a formula simplification. DAG size of input: 465 DAG size of output: 337 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:31:06,046 WARN L233 SmtUtils]: Spent 7.22s on a formula simplification. DAG size of input: 465 DAG size of output: 356 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:31:14,779 WARN L233 SmtUtils]: Spent 8.51s on a formula simplification. DAG size of input: 462 DAG size of output: 398 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:31:21,346 WARN L233 SmtUtils]: Spent 6.28s on a formula simplification. DAG size of input: 480 DAG size of output: 351 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:31:26,797 WARN L233 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 448 DAG size of output: 350 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:31:32,268 WARN L233 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 446 DAG size of output: 348 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:31:38,952 WARN L233 SmtUtils]: Spent 6.32s on a formula simplification. DAG size of input: 471 DAG size of output: 340 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:31:45,581 WARN L233 SmtUtils]: Spent 6.30s on a formula simplification. DAG size of input: 473 DAG size of output: 342 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:31:59,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:31:59,663 INFO L93 Difference]: Finished difference Result 909 states and 1402 transitions. [2022-11-16 16:31:59,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-16 16:31:59,664 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 84 [2022-11-16 16:31:59,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:31:59,668 INFO L225 Difference]: With dead ends: 909 [2022-11-16 16:31:59,668 INFO L226 Difference]: Without dead ends: 567 [2022-11-16 16:31:59,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 181.0s TimeCoverageRelationStatistics Valid=195, Invalid=1287, Unknown=0, NotChecked=0, Total=1482 [2022-11-16 16:31:59,670 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 360 mSDsluCounter, 3424 mSDsCounter, 0 mSdLazyCounter, 2332 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 3683 SdHoareTripleChecker+Invalid, 2364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-16 16:31:59,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 3683 Invalid, 2364 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 2332 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2022-11-16 16:31:59,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-11-16 16:31:59,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 455. [2022-11-16 16:31:59,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 313 states have (on average 1.463258785942492) internal successors, (458), 319 states have internal predecessors, (458), 111 states have call successors, (111), 30 states have call predecessors, (111), 30 states have return successors, (110), 107 states have call predecessors, (110), 110 states have call successors, (110) [2022-11-16 16:31:59,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 679 transitions. [2022-11-16 16:31:59,974 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 679 transitions. Word has length 84 [2022-11-16 16:31:59,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:31:59,974 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 679 transitions. [2022-11-16 16:31:59,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2022-11-16 16:31:59,975 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 679 transitions. [2022-11-16 16:31:59,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-16 16:31:59,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:31:59,977 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 16:31:59,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 16:32:00,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:32:00,185 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:32:00,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:32:00,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1757189066, now seen corresponding path program 1 times [2022-11-16 16:32:00,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:32:00,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980218692] [2022-11-16 16:32:00,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:32:00,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:32:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:32:00,414 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 16:32:00,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:32:00,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980218692] [2022-11-16 16:32:00,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980218692] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:32:00,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874729840] [2022-11-16 16:32:00,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:32:00,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:32:00,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:32:00,416 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:32:00,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 16:32:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:32:00,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 16:32:00,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:32:00,790 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 16:32:00,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:32:00,870 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 16:32:00,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874729840] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:32:00,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [870475022] [2022-11-16 16:32:00,880 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2022-11-16 16:32:00,880 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:32:00,880 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:32:00,881 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:32:00,881 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:33:35,581 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-16 16:33:35,871 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 232 for LOIs [2022-11-16 16:33:35,932 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 233 for LOIs [2022-11-16 16:33:35,998 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 280 for LOIs [2022-11-16 16:33:36,122 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-11-16 16:33:36,417 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:33:50,721 WARN L233 SmtUtils]: Spent 5.89s on a formula simplification. DAG size of input: 443 DAG size of output: 327 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:33:57,047 WARN L233 SmtUtils]: Spent 6.23s on a formula simplification. DAG size of input: 466 DAG size of output: 347 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:34:04,058 WARN L233 SmtUtils]: Spent 6.15s on a formula simplification. DAG size of input: 448 DAG size of output: 305 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:34:10,605 WARN L233 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 471 DAG size of output: 325 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:34:32,074 WARN L233 SmtUtils]: Spent 6.82s on a formula simplification. DAG size of input: 508 DAG size of output: 366 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:34:40,544 WARN L233 SmtUtils]: Spent 7.15s on a formula simplification. DAG size of input: 518 DAG size of output: 353 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:34:48,322 WARN L233 SmtUtils]: Spent 7.49s on a formula simplification. DAG size of input: 539 DAG size of output: 389 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:35:12,752 WARN L233 SmtUtils]: Spent 8.29s on a formula simplification. DAG size of input: 530 DAG size of output: 385 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:35:12,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [870475022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:35:12,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 16:35:12,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2022-11-16 16:35:12,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495901648] [2022-11-16 16:35:12,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:35:12,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-16 16:35:12,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:35:12,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-16 16:35:12,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=958, Unknown=0, NotChecked=0, Total=1056 [2022-11-16 16:35:12,760 INFO L87 Difference]: Start difference. First operand 455 states and 679 transitions. Second operand has 28 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 16 states have internal predecessors, (44), 9 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 9 states have call successors, (17) [2022-11-16 16:35:19,802 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 441 DAG size of output: 396 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:35:36,717 WARN L233 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 478 DAG size of output: 337 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:35:49,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:35:49,516 INFO L93 Difference]: Finished difference Result 946 states and 1455 transitions. [2022-11-16 16:35:49,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-16 16:35:49,519 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 16 states have internal predecessors, (44), 9 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 9 states have call successors, (17) Word has length 87 [2022-11-16 16:35:49,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:35:49,523 INFO L225 Difference]: With dead ends: 946 [2022-11-16 16:35:49,523 INFO L226 Difference]: Without dead ends: 604 [2022-11-16 16:35:49,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 231 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 116.4s TimeCoverageRelationStatistics Valid=127, Invalid=1205, Unknown=0, NotChecked=0, Total=1332 [2022-11-16 16:35:49,526 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 181 mSDsluCounter, 3642 mSDsCounter, 0 mSdLazyCounter, 3674 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 3898 SdHoareTripleChecker+Invalid, 3690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2022-11-16 16:35:49,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 3898 Invalid, 3690 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 3674 Invalid, 0 Unknown, 0 Unchecked, 15.8s Time] [2022-11-16 16:35:49,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2022-11-16 16:35:49,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 495. [2022-11-16 16:35:49,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 345 states have (on average 1.4579710144927536) internal successors, (503), 353 states have internal predecessors, (503), 116 states have call successors, (116), 33 states have call predecessors, (116), 33 states have return successors, (115), 110 states have call predecessors, (115), 115 states have call successors, (115) [2022-11-16 16:35:49,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 734 transitions. [2022-11-16 16:35:49,896 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 734 transitions. Word has length 87 [2022-11-16 16:35:49,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:35:49,897 INFO L495 AbstractCegarLoop]: Abstraction has 495 states and 734 transitions. [2022-11-16 16:35:49,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 16 states have internal predecessors, (44), 9 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 9 states have call successors, (17) [2022-11-16 16:35:49,897 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 734 transitions. [2022-11-16 16:35:49,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-16 16:35:49,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:35:49,900 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 16:35:49,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-16 16:35:50,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:35:50,103 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:35:50,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:35:50,104 INFO L85 PathProgramCache]: Analyzing trace with hash -40911267, now seen corresponding path program 1 times [2022-11-16 16:35:50,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:35:50,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572901687] [2022-11-16 16:35:50,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:35:50,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:35:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:35:50,228 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 16:35:50,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:35:50,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572901687] [2022-11-16 16:35:50,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572901687] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:35:50,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855046972] [2022-11-16 16:35:50,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:35:50,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:35:50,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:35:50,230 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:35:50,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b792de-77c2-4c98-bb0b-b76536bd7c19/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 16:35:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:35:50,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 1089 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 16:35:50,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:35:50,591 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 16:35:50,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:35:50,672 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 16:35:50,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855046972] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:35:50,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1397334271] [2022-11-16 16:35:50,679 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2022-11-16 16:35:50,679 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:35:50,680 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:35:50,680 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:35:50,681 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:36:30,409 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-16 16:36:30,691 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 262 for LOIs [2022-11-16 16:36:32,442 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 236 for LOIs [2022-11-16 16:36:32,485 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-11-16 16:36:32,770 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 264 for LOIs [2022-11-16 16:36:35,706 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 226 for LOIs [2022-11-16 16:36:35,741 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 265 for LOIs [2022-11-16 16:36:41,883 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 246 for LOIs [2022-11-16 16:36:41,949 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 243 for LOIs [2022-11-16 16:36:41,988 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 480 for LOIs [2022-11-16 16:36:45,197 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 251 for LOIs [2022-11-16 16:36:45,245 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:36:59,475 WARN L233 SmtUtils]: Spent 5.86s on a formula simplification. DAG size of input: 443 DAG size of output: 327 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:37:05,784 WARN L233 SmtUtils]: Spent 6.21s on a formula simplification. DAG size of input: 466 DAG size of output: 347 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:37:12,767 WARN L233 SmtUtils]: Spent 6.12s on a formula simplification. DAG size of input: 448 DAG size of output: 305 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:37:19,289 WARN L233 SmtUtils]: Spent 6.39s on a formula simplification. DAG size of input: 471 DAG size of output: 325 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:37:40,606 WARN L233 SmtUtils]: Spent 6.73s on a formula simplification. DAG size of input: 508 DAG size of output: 366 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:37:48,947 WARN L233 SmtUtils]: Spent 7.06s on a formula simplification. DAG size of input: 518 DAG size of output: 353 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:37:58,267 WARN L233 SmtUtils]: Spent 9.04s on a formula simplification. DAG size of input: 582 DAG size of output: 381 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:38:05,753 WARN L233 SmtUtils]: Spent 7.19s on a formula simplification. DAG size of input: 572 DAG size of output: 375 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:38:15,444 WARN L233 SmtUtils]: Spent 9.36s on a formula simplification. DAG size of input: 574 DAG size of output: 431 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:38:28,179 WARN L233 SmtUtils]: Spent 7.06s on a formula simplification. DAG size of input: 578 DAG size of output: 372 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:38:35,540 WARN L233 SmtUtils]: Spent 6.98s on a formula simplification. DAG size of input: 576 DAG size of output: 370 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)