./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1e86a-888b-48e9-ac1a-5780555fce6d/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1e86a-888b-48e9-ac1a-5780555fce6d/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1e86a-888b-48e9-ac1a-5780555fce6d/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1e86a-888b-48e9-ac1a-5780555fce6d/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1e86a-888b-48e9-ac1a-5780555fce6d/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1e86a-888b-48e9-ac1a-5780555fce6d/bin/utaipan-G1rejxKTta --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 fdf21b24c583a6d136f11a4b24a73548bc1166a9ff6f145f509a3c93fdab8434 --- 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-dbf71c6-m [2022-10-17 17:22:17,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:22:17,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:22:17,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:22:17,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:22:17,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:22:17,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:22:17,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:22:17,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:22:17,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:22:17,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:22:17,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:22:17,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:22:17,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:22:17,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:22:17,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:22:17,606 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:22:17,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:22:17,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:22:17,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:22:17,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:22:17,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:22:17,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:22:17,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:22:17,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:22:17,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:22:17,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:22:17,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:22:17,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:22:17,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:22:17,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:22:17,644 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:22:17,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:22:17,648 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:22:17,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:22:17,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:22:17,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:22:17,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:22:17,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:22:17,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:22:17,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:22:17,655 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1e86a-888b-48e9-ac1a-5780555fce6d/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-10-17 17:22:17,707 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:22:17,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:22:17,708 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:22:17,708 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:22:17,709 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:22:17,709 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:22:17,710 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:22:17,710 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:22:17,710 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:22:17,710 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:22:17,712 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:22:17,712 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:22:17,712 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:22:17,712 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:22:17,713 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:22:17,713 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:22:17,713 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:22:17,713 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:22:17,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:22:17,715 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:22:17,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:22:17,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:22:17,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:22:17,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:22:17,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:22:17,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:22:17,725 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:22:17,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:22:17,726 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:22:17,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:22:17,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:22:17,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:22:17,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:22:17,727 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:22:17,727 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:22:17,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:22:17,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:22:17,728 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:22:17,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:22:17,728 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:22:17,729 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:22:17,729 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_d5f1e86a-888b-48e9-ac1a-5780555fce6d/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1e86a-888b-48e9-ac1a-5780555fce6d/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdf21b24c583a6d136f11a4b24a73548bc1166a9ff6f145f509a3c93fdab8434 [2022-10-17 17:22:17,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:22:18,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:22:18,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:22:18,026 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:22:18,027 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:22:18,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1e86a-888b-48e9-ac1a-5780555fce6d/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/product-lines/email_spec8_productSimulator.cil.c [2022-10-17 17:22:18,131 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1e86a-888b-48e9-ac1a-5780555fce6d/bin/utaipan-G1rejxKTta/data/99b5c2dad/2b96a57b73404ed28d5ee85407d6d714/FLAGa10309461 [2022-10-17 17:22:18,774 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:22:18,775 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1e86a-888b-48e9-ac1a-5780555fce6d/sv-benchmarks/c/product-lines/email_spec8_productSimulator.cil.c [2022-10-17 17:22:18,807 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1e86a-888b-48e9-ac1a-5780555fce6d/bin/utaipan-G1rejxKTta/data/99b5c2dad/2b96a57b73404ed28d5ee85407d6d714/FLAGa10309461 [2022-10-17 17:22:18,968 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1e86a-888b-48e9-ac1a-5780555fce6d/bin/utaipan-G1rejxKTta/data/99b5c2dad/2b96a57b73404ed28d5ee85407d6d714 [2022-10-17 17:22:18,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:22:18,972 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:22:18,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:22:18,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:22:18,981 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:22:18,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:22:18" (1/1) ... [2022-10-17 17:22:18,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60137d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:18, skipping insertion in model container [2022-10-17 17:22:18,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:22:18" (1/1) ... [2022-10-17 17:22:18,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:22:19,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:22:19,774 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1e86a-888b-48e9-ac1a-5780555fce6d/sv-benchmarks/c/product-lines/email_spec8_productSimulator.cil.c[73270,73283] [2022-10-17 17:22:19,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:22:19,788 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:22:19,928 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1e86a-888b-48e9-ac1a-5780555fce6d/sv-benchmarks/c/product-lines/email_spec8_productSimulator.cil.c[73270,73283] [2022-10-17 17:22:19,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:22:19,985 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:22:19,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19 WrapperNode [2022-10-17 17:22:19,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:22:19,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:22:19,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:22:19,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:22:19,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19" (1/1) ... [2022-10-17 17:22:20,051 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19" (1/1) ... [2022-10-17 17:22:20,147 INFO L138 Inliner]: procedures = 152, calls = 288, calls flagged for inlining = 68, calls inlined = 65, statements flattened = 1326 [2022-10-17 17:22:20,148 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:22:20,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:22:20,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:22:20,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:22:20,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19" (1/1) ... [2022-10-17 17:22:20,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19" (1/1) ... [2022-10-17 17:22:20,167 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19" (1/1) ... [2022-10-17 17:22:20,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19" (1/1) ... [2022-10-17 17:22:20,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19" (1/1) ... [2022-10-17 17:22:20,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19" (1/1) ... [2022-10-17 17:22:20,222 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19" (1/1) ... [2022-10-17 17:22:20,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19" (1/1) ... [2022-10-17 17:22:20,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:22:20,243 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:22:20,243 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:22:20,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:22:20,244 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19" (1/1) ... [2022-10-17 17:22:20,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:22:20,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1e86a-888b-48e9-ac1a-5780555fce6d/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:22:20,316 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1e86a-888b-48e9-ac1a-5780555fce6d/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:22:20,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1e86a-888b-48e9-ac1a-5780555fce6d/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:22:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-10-17 17:22:20,395 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-10-17 17:22:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2022-10-17 17:22:20,395 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2022-10-17 17:22:20,396 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2022-10-17 17:22:20,396 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2022-10-17 17:22:20,396 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-10-17 17:22:20,396 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-10-17 17:22:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-10-17 17:22:20,397 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-10-17 17:22:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-10-17 17:22:20,397 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-10-17 17:22:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-10-17 17:22:20,398 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-10-17 17:22:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2022-10-17 17:22:20,398 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2022-10-17 17:22:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-10-17 17:22:20,398 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-10-17 17:22:20,399 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2022-10-17 17:22:20,399 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2022-10-17 17:22:20,399 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-10-17 17:22:20,399 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-10-17 17:22:20,399 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-10-17 17:22:20,400 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-10-17 17:22:20,400 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-10-17 17:22:20,400 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-10-17 17:22:20,400 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2022-10-17 17:22:20,400 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2022-10-17 17:22:20,400 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2022-10-17 17:22:20,401 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2022-10-17 17:22:20,402 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-10-17 17:22:20,403 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-10-17 17:22:20,403 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-10-17 17:22:20,403 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-10-17 17:22:20,403 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-10-17 17:22:20,404 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-10-17 17:22:20,404 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-10-17 17:22:20,404 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2022-10-17 17:22:20,404 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2022-10-17 17:22:20,404 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-10-17 17:22:20,404 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-10-17 17:22:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-10-17 17:22:20,405 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-10-17 17:22:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-10-17 17:22:20,406 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-10-17 17:22:20,406 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2022-10-17 17:22:20,408 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2022-10-17 17:22:20,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:22:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-10-17 17:22:20,410 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-10-17 17:22:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-10-17 17:22:20,410 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-10-17 17:22:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2022-10-17 17:22:20,411 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2022-10-17 17:22:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2022-10-17 17:22:20,411 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2022-10-17 17:22:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2022-10-17 17:22:20,412 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2022-10-17 17:22:20,412 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-10-17 17:22:20,412 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-10-17 17:22:20,412 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-10-17 17:22:20,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-10-17 17:22:20,413 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-10-17 17:22:20,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-10-17 17:22:20,413 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-10-17 17:22:20,413 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-10-17 17:22:20,413 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-10-17 17:22:20,414 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-10-17 17:22:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-10-17 17:22:20,414 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-10-17 17:22:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-10-17 17:22:20,415 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-10-17 17:22:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2022-10-17 17:22:20,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2022-10-17 17:22:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2022-10-17 17:22:20,416 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2022-10-17 17:22:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-10-17 17:22:20,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-10-17 17:22:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-10-17 17:22:20,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-10-17 17:22:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:22:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-10-17 17:22:20,417 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-10-17 17:22:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2022-10-17 17:22:20,418 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2022-10-17 17:22:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2022-10-17 17:22:20,418 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2022-10-17 17:22:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-10-17 17:22:20,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-10-17 17:22:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:22:20,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:22:20,755 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:22:20,759 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:22:21,967 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:22:22,770 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:22:22,770 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 17:22:22,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:22:22 BoogieIcfgContainer [2022-10-17 17:22:22,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:22:22,777 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:22:22,777 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:22:22,781 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:22:22,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:22:18" (1/3) ... [2022-10-17 17:22:22,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@287cb65a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:22:22, skipping insertion in model container [2022-10-17 17:22:22,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19" (2/3) ... [2022-10-17 17:22:22,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@287cb65a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:22:22, skipping insertion in model container [2022-10-17 17:22:22,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:22:22" (3/3) ... [2022-10-17 17:22:22,785 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_productSimulator.cil.c [2022-10-17 17:22:22,806 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:22:22,807 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 17:22:22,868 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:22:22,876 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;@7648d258, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:22:22,876 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 17:22:22,886 INFO L276 IsEmpty]: Start isEmpty. Operand has 380 states, 225 states have (on average 1.3333333333333333) internal successors, (300), 245 states have internal predecessors, (300), 110 states have call successors, (110), 43 states have call predecessors, (110), 43 states have return successors, (110), 109 states have call predecessors, (110), 110 states have call successors, (110) [2022-10-17 17:22:22,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-10-17 17:22:22,920 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:22:22,920 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:22:22,921 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:22:22,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:22:22,927 INFO L85 PathProgramCache]: Analyzing trace with hash 773592641, now seen corresponding path program 1 times [2022-10-17 17:22:22,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:22:22,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652731265] [2022-10-17 17:22:22,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:22:22,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:22:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:22:23,710 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-10-17 17:22:23,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:22:23,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652731265] [2022-10-17 17:22:23,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652731265] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:22:23,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:22:23,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 17:22:23,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200933370] [2022-10-17 17:22:23,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:22:23,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 17:22:23,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:22:23,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 17:22:23,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 17:22:23,752 INFO L87 Difference]: Start difference. First operand has 380 states, 225 states have (on average 1.3333333333333333) internal successors, (300), 245 states have internal predecessors, (300), 110 states have call successors, (110), 43 states have call predecessors, (110), 43 states have return successors, (110), 109 states have call predecessors, (110), 110 states have call successors, (110) Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-17 17:22:24,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:22:24,158 INFO L93 Difference]: Finished difference Result 732 states and 1002 transitions. [2022-10-17 17:22:24,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 17:22:24,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 97 [2022-10-17 17:22:24,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:22:24,191 INFO L225 Difference]: With dead ends: 732 [2022-10-17 17:22:24,192 INFO L226 Difference]: Without dead ends: 377 [2022-10-17 17:22:24,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 17:22:24,219 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 6 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 17:22:24,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1383 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 17:22:24,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-10-17 17:22:24,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2022-10-17 17:22:24,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 223 states have (on average 1.2914798206278026) internal successors, (288), 242 states have internal predecessors, (288), 110 states have call successors, (110), 43 states have call predecessors, (110), 43 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) [2022-10-17 17:22:24,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 507 transitions. [2022-10-17 17:22:24,361 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 507 transitions. Word has length 97 [2022-10-17 17:22:24,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:22:24,363 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 507 transitions. [2022-10-17 17:22:24,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-17 17:22:24,364 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 507 transitions. [2022-10-17 17:22:24,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-17 17:22:24,372 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:22:24,372 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:22:24,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 17:22:24,373 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:22:24,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:22:24,374 INFO L85 PathProgramCache]: Analyzing trace with hash 762710508, now seen corresponding path program 1 times [2022-10-17 17:22:24,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:22:24,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698277754] [2022-10-17 17:22:24,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:22:24,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:22:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:22:24,654 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-10-17 17:22:24,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:22:24,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698277754] [2022-10-17 17:22:24,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698277754] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:22:24,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:22:24,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:22:24,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053495119] [2022-10-17 17:22:24,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:22:24,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:22:24,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:22:24,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:22:24,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:22:24,660 INFO L87 Difference]: Start difference. First operand 377 states and 507 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-10-17 17:22:24,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:22:24,861 INFO L93 Difference]: Finished difference Result 731 states and 999 transitions. [2022-10-17 17:22:24,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:22:24,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 103 [2022-10-17 17:22:24,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:22:24,866 INFO L225 Difference]: With dead ends: 731 [2022-10-17 17:22:24,866 INFO L226 Difference]: Without dead ends: 375 [2022-10-17 17:22:24,872 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 [2022-10-17 17:22:24,875 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 476 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:22:24,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 442 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:22:24,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-10-17 17:22:24,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2022-10-17 17:22:24,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 223 states have (on average 1.2690582959641257) internal successors, (283), 240 states have internal predecessors, (283), 107 states have call successors, (107), 44 states have call predecessors, (107), 44 states have return successors, (106), 105 states have call predecessors, (106), 106 states have call successors, (106) [2022-10-17 17:22:24,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 496 transitions. [2022-10-17 17:22:24,949 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 496 transitions. Word has length 103 [2022-10-17 17:22:24,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:22:24,950 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 496 transitions. [2022-10-17 17:22:24,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-10-17 17:22:24,951 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 496 transitions. [2022-10-17 17:22:24,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-10-17 17:22:24,957 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:22:24,958 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:22:24,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 17:22:24,958 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:22:24,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:22:24,959 INFO L85 PathProgramCache]: Analyzing trace with hash 753621541, now seen corresponding path program 1 times [2022-10-17 17:22:24,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:22:24,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854621188] [2022-10-17 17:22:24,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:22:24,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:22:25,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:22:25,104 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-10-17 17:22:25,104 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:22:25,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854621188] [2022-10-17 17:22:25,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854621188] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:22:25,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:22:25,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:22:25,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685632727] [2022-10-17 17:22:25,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:22:25,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:22:25,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:22:25,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:22:25,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:22:25,107 INFO L87 Difference]: Start difference. First operand 375 states and 496 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-10-17 17:22:25,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:22:25,280 INFO L93 Difference]: Finished difference Result 724 states and 967 transitions. [2022-10-17 17:22:25,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:22:25,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 114 [2022-10-17 17:22:25,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:22:25,286 INFO L225 Difference]: With dead ends: 724 [2022-10-17 17:22:25,287 INFO L226 Difference]: Without dead ends: 374 [2022-10-17 17:22:25,291 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 [2022-10-17 17:22:25,297 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 463 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:22:25,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 461 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:22:25,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2022-10-17 17:22:25,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 374. [2022-10-17 17:22:25,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 223 states have (on average 1.2600896860986548) internal successors, (281), 239 states have internal predecessors, (281), 106 states have call successors, (106), 44 states have call predecessors, (106), 44 states have return successors, (105), 104 states have call predecessors, (105), 105 states have call successors, (105) [2022-10-17 17:22:25,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 492 transitions. [2022-10-17 17:22:25,353 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 492 transitions. Word has length 114 [2022-10-17 17:22:25,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:22:25,354 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 492 transitions. [2022-10-17 17:22:25,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-10-17 17:22:25,354 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 492 transitions. [2022-10-17 17:22:25,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-10-17 17:22:25,365 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:22:25,365 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:22:25,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 17:22:25,366 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:22:25,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:22:25,368 INFO L85 PathProgramCache]: Analyzing trace with hash 446507475, now seen corresponding path program 1 times [2022-10-17 17:22:25,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:22:25,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045654459] [2022-10-17 17:22:25,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:22:25,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:22:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:22:25,492 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-10-17 17:22:25,492 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:22:25,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045654459] [2022-10-17 17:22:25,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045654459] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:22:25,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:22:25,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:22:25,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11643743] [2022-10-17 17:22:25,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:22:25,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:22:25,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:22:25,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:22:25,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:22:25,496 INFO L87 Difference]: Start difference. First operand 374 states and 492 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-10-17 17:22:25,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:22:25,656 INFO L93 Difference]: Finished difference Result 705 states and 926 transitions. [2022-10-17 17:22:25,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:22:25,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 115 [2022-10-17 17:22:25,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:22:25,660 INFO L225 Difference]: With dead ends: 705 [2022-10-17 17:22:25,661 INFO L226 Difference]: Without dead ends: 371 [2022-10-17 17:22:25,662 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 [2022-10-17 17:22:25,664 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 436 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:22:25,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 437 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:22:25,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-10-17 17:22:25,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2022-10-17 17:22:25,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 223 states have (on average 1.210762331838565) internal successors, (270), 234 states have internal predecessors, (270), 103 states have call successors, (103), 44 states have call predecessors, (103), 44 states have return successors, (102), 101 states have call predecessors, (102), 102 states have call successors, (102) [2022-10-17 17:22:25,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 475 transitions. [2022-10-17 17:22:25,704 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 475 transitions. Word has length 115 [2022-10-17 17:22:25,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:22:25,705 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 475 transitions. [2022-10-17 17:22:25,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-10-17 17:22:25,705 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 475 transitions. [2022-10-17 17:22:25,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-10-17 17:22:25,708 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:22:25,708 INFO L195 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:22:25,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 17:22:25,709 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:22:25,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:22:25,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1168996932, now seen corresponding path program 1 times [2022-10-17 17:22:25,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:22:25,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293796096] [2022-10-17 17:22:25,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:22:25,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:22:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:22:25,942 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-10-17 17:22:25,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:22:25,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293796096] [2022-10-17 17:22:25,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293796096] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:22:25,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:22:25,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:22:25,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904180823] [2022-10-17 17:22:25,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:22:25,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:22:25,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:22:25,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:22:25,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:22:25,948 INFO L87 Difference]: Start difference. First operand 371 states and 475 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-17 17:22:26,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:22:26,111 INFO L93 Difference]: Finished difference Result 587 states and 745 transitions. [2022-10-17 17:22:26,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:22:26,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 127 [2022-10-17 17:22:26,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:22:26,118 INFO L225 Difference]: With dead ends: 587 [2022-10-17 17:22:26,118 INFO L226 Difference]: Without dead ends: 373 [2022-10-17 17:22:26,120 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 [2022-10-17 17:22:26,123 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 0 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:22:26,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 843 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:22:26,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-10-17 17:22:26,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2022-10-17 17:22:26,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 225 states have (on average 1.208888888888889) internal successors, (272), 236 states have internal predecessors, (272), 103 states have call successors, (103), 44 states have call predecessors, (103), 44 states have return successors, (102), 101 states have call predecessors, (102), 102 states have call successors, (102) [2022-10-17 17:22:26,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 477 transitions. [2022-10-17 17:22:26,167 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 477 transitions. Word has length 127 [2022-10-17 17:22:26,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:22:26,169 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 477 transitions. [2022-10-17 17:22:26,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-17 17:22:26,170 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 477 transitions. [2022-10-17 17:22:26,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-10-17 17:22:26,175 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:22:26,175 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:22:26,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 17:22:26,176 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:22:26,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:22:26,176 INFO L85 PathProgramCache]: Analyzing trace with hash 687305607, now seen corresponding path program 1 times [2022-10-17 17:22:26,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:22:26,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046297188] [2022-10-17 17:22:26,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:22:26,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:22:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:22:26,353 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-10-17 17:22:26,353 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:22:26,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046297188] [2022-10-17 17:22:26,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046297188] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:22:26,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:22:26,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:22:26,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478095467] [2022-10-17 17:22:26,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:22:26,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:22:26,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:22:26,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:22:26,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:22:26,357 INFO L87 Difference]: Start difference. First operand 373 states and 477 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-17 17:22:26,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:22:26,526 INFO L93 Difference]: Finished difference Result 746 states and 978 transitions. [2022-10-17 17:22:26,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:22:26,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 132 [2022-10-17 17:22:26,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:22:26,532 INFO L225 Difference]: With dead ends: 746 [2022-10-17 17:22:26,535 INFO L226 Difference]: Without dead ends: 440 [2022-10-17 17:22:26,537 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 [2022-10-17 17:22:26,539 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 76 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:22:26,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 864 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:22:26,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-10-17 17:22:26,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 435. [2022-10-17 17:22:26,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 273 states have (on average 1.2527472527472527) internal successors, (342), 284 states have internal predecessors, (342), 117 states have call successors, (117), 44 states have call predecessors, (117), 44 states have return successors, (116), 115 states have call predecessors, (116), 116 states have call successors, (116) [2022-10-17 17:22:26,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 575 transitions. [2022-10-17 17:22:26,590 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 575 transitions. Word has length 132 [2022-10-17 17:22:26,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:22:26,592 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 575 transitions. [2022-10-17 17:22:26,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-17 17:22:26,592 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 575 transitions. [2022-10-17 17:22:26,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-17 17:22:26,595 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:22:26,596 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:22:26,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 17:22:26,596 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:22:26,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:22:26,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1363662011, now seen corresponding path program 1 times [2022-10-17 17:22:26,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:22:26,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821699716] [2022-10-17 17:22:26,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:22:26,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:22:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:22:26,834 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-10-17 17:22:26,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:22:26,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821699716] [2022-10-17 17:22:26,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821699716] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 17:22:26,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37019347] [2022-10-17 17:22:26,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:22:26,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:22:26,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1e86a-888b-48e9-ac1a-5780555fce6d/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:22:26,837 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1e86a-888b-48e9-ac1a-5780555fce6d/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:22:26,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1e86a-888b-48e9-ac1a-5780555fce6d/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 17:22:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:22:27,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 1398 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 17:22:27,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:22:27,286 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-10-17 17:22:27,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 17:22:27,464 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-10-17 17:22:27,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37019347] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 17:22:27,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1088847199] [2022-10-17 17:22:27,490 INFO L159 IcfgInterpreter]: Started Sifa with 108 locations of interest [2022-10-17 17:22:27,497 INFO L166 IcfgInterpreter]: Building call graph [2022-10-17 17:22:27,502 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-10-17 17:22:27,507 INFO L176 IcfgInterpreter]: Starting interpretation [2022-10-17 17:22:27,508 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs