./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product12.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product12.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V --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 4d7925e6725ebc9ccc1628dac3a92336bad7d7149419f1b3b2e679ed4e3055d5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:49:23,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:49:23,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:49:23,460 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:49:23,460 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:49:23,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:49:23,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:49:23,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:49:23,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:49:23,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:49:23,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:49:23,476 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:49:23,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:49:23,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:49:23,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:49:23,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:49:23,480 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:49:23,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:49:23,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:49:23,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:49:23,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:49:23,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:49:23,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:49:23,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:49:23,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:49:23,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:49:23,498 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:49:23,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:49:23,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:49:23,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:49:23,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:49:23,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:49:23,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:49:23,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:49:23,516 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:49:23,517 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:49:23,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:49:23,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:49:23,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:49:23,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:49:23,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:49:23,522 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:49:23,581 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:49:23,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:49:23,582 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:49:23,582 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:49:23,589 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:49:23,590 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:49:23,590 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:49:23,590 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:49:23,591 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:49:23,591 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:49:23,592 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:49:23,593 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:49:23,593 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:49:23,593 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:49:23,593 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:49:23,594 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:49:23,594 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:49:23,594 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:49:23,595 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:49:23,595 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:49:23,595 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:49:23,596 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:49:23,596 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:49:23,596 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:49:23,596 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:49:23,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:49:23,604 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:49:23,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:49:23,605 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:49:23,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:49:23,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:49:23,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:49:23,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:49:23,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:49:23,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:49:23,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:49:23,607 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:49:23,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:49:23,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:49:23,607 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:49:23,608 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:49:23,608 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d7925e6725ebc9ccc1628dac3a92336bad7d7149419f1b3b2e679ed4e3055d5 [2021-11-23 02:49:23,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:49:23,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:49:23,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:49:23,910 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:49:23,911 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:49:23,912 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/email_spec9_product12.cil.c [2021-11-23 02:49:23,998 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/data/a19e57523/682180d9b261420ca3381d52c3893274/FLAGb1207512e [2021-11-23 02:49:24,620 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:49:24,621 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/sv-benchmarks/c/product-lines/email_spec9_product12.cil.c [2021-11-23 02:49:24,643 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/data/a19e57523/682180d9b261420ca3381d52c3893274/FLAGb1207512e [2021-11-23 02:49:24,827 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/data/a19e57523/682180d9b261420ca3381d52c3893274 [2021-11-23 02:49:24,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:49:24,831 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:49:24,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:49:24,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:49:24,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:49:24,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:49:24" (1/1) ... [2021-11-23 02:49:24,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78aa8abe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:24, skipping insertion in model container [2021-11-23 02:49:24,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:49:24" (1/1) ... [2021-11-23 02:49:24,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:49:24,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:49:25,416 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_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/sv-benchmarks/c/product-lines/email_spec9_product12.cil.c[29763,29776] [2021-11-23 02:49:25,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:49:25,517 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:49:25,602 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_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/sv-benchmarks/c/product-lines/email_spec9_product12.cil.c[29763,29776] [2021-11-23 02:49:25,671 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:49:25,713 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:49:25,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:25 WrapperNode [2021-11-23 02:49:25,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:49:25,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:49:25,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:49:25,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:49:25,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:25" (1/1) ... [2021-11-23 02:49:25,753 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:25" (1/1) ... [2021-11-23 02:49:25,815 INFO L137 Inliner]: procedures = 123, calls = 191, calls flagged for inlining = 51, calls inlined = 41, statements flattened = 834 [2021-11-23 02:49:25,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:49:25,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:49:25,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:49:25,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:49:25,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:25" (1/1) ... [2021-11-23 02:49:25,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:25" (1/1) ... [2021-11-23 02:49:25,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:25" (1/1) ... [2021-11-23 02:49:25,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:25" (1/1) ... [2021-11-23 02:49:25,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:25" (1/1) ... [2021-11-23 02:49:25,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:25" (1/1) ... [2021-11-23 02:49:25,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:25" (1/1) ... [2021-11-23 02:49:25,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:49:25,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:49:25,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:49:25,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:49:25,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:25" (1/1) ... [2021-11-23 02:49:25,940 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:49:25,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:49:25,964 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:49:25,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:49:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-11-23 02:49:26,032 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-11-23 02:49:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-11-23 02:49:26,032 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-11-23 02:49:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-11-23 02:49:26,033 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-11-23 02:49:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-11-23 02:49:26,033 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-11-23 02:49:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-11-23 02:49:26,033 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-11-23 02:49:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-11-23 02:49:26,033 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-11-23 02:49:26,045 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-11-23 02:49:26,045 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-11-23 02:49:26,045 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-23 02:49:26,045 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-11-23 02:49:26,046 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-11-23 02:49:26,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:49:26,046 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-11-23 02:49:26,046 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-11-23 02:49:26,047 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-11-23 02:49:26,047 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-11-23 02:49:26,047 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-11-23 02:49:26,047 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-11-23 02:49:26,047 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-11-23 02:49:26,047 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-11-23 02:49:26,048 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-11-23 02:49:26,048 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-11-23 02:49:26,048 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-11-23 02:49:26,048 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-11-23 02:49:26,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:49:26,049 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-11-23 02:49:26,049 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-11-23 02:49:26,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:49:26,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:49:26,255 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:49:26,257 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:49:27,045 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:49:27,403 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:49:27,403 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 02:49:27,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:49:27 BoogieIcfgContainer [2021-11-23 02:49:27,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:49:27,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:49:27,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:49:27,412 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:49:27,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:49:24" (1/3) ... [2021-11-23 02:49:27,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a6ae1d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:49:27, skipping insertion in model container [2021-11-23 02:49:27,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:49:25" (2/3) ... [2021-11-23 02:49:27,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a6ae1d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:49:27, skipping insertion in model container [2021-11-23 02:49:27,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:49:27" (3/3) ... [2021-11-23 02:49:27,417 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec9_product12.cil.c [2021-11-23 02:49:27,426 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:49:27,427 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:49:27,491 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:49:27,504 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:49:27,504 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:49:27,542 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 84 states have (on average 1.3928571428571428) internal successors, (117), 88 states have internal predecessors, (117), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2021-11-23 02:49:27,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-23 02:49:27,552 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:49:27,552 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:49:27,553 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:49:27,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:49:27,558 INFO L85 PathProgramCache]: Analyzing trace with hash -676184733, now seen corresponding path program 1 times [2021-11-23 02:49:27,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:49:27,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304879251] [2021-11-23 02:49:27,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:49:27,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:49:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:49:27,945 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:49:27,946 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:49:27,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304879251] [2021-11-23 02:49:27,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304879251] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:49:27,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:49:27,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:49:27,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735320115] [2021-11-23 02:49:27,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:49:27,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:49:27,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:49:27,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:49:27,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:49:27,998 INFO L87 Difference]: Start difference. First operand has 140 states, 84 states have (on average 1.3928571428571428) internal successors, (117), 88 states have internal predecessors, (117), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-23 02:49:28,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:49:28,138 INFO L93 Difference]: Finished difference Result 197 states and 268 transitions. [2021-11-23 02:49:28,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:49:28,141 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 53 [2021-11-23 02:49:28,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:49:28,158 INFO L225 Difference]: With dead ends: 197 [2021-11-23 02:49:28,158 INFO L226 Difference]: Without dead ends: 137 [2021-11-23 02:49:28,163 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:49:28,168 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:49:28,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 168 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:49:28,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-11-23 02:49:28,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-11-23 02:49:28,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 82 states have (on average 1.353658536585366) internal successors, (111), 85 states have internal predecessors, (111), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-23 02:49:28,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 188 transitions. [2021-11-23 02:49:28,254 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 188 transitions. Word has length 53 [2021-11-23 02:49:28,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:49:28,257 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 188 transitions. [2021-11-23 02:49:28,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-23 02:49:28,259 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 188 transitions. [2021-11-23 02:49:28,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 02:49:28,271 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:49:28,271 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:49:28,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:49:28,273 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:49:28,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:49:28,275 INFO L85 PathProgramCache]: Analyzing trace with hash 554423228, now seen corresponding path program 1 times [2021-11-23 02:49:28,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:49:28,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485984944] [2021-11-23 02:49:28,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:49:28,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:49:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:49:28,464 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:49:28,465 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:49:28,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485984944] [2021-11-23 02:49:28,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485984944] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:49:28,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:49:28,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:49:28,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957477852] [2021-11-23 02:49:28,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:49:28,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:49:28,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:49:28,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:49:28,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:49:28,478 INFO L87 Difference]: Start difference. First operand 137 states and 188 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-23 02:49:28,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:49:28,606 INFO L93 Difference]: Finished difference Result 193 states and 256 transitions. [2021-11-23 02:49:28,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:49:28,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 54 [2021-11-23 02:49:28,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:49:28,617 INFO L225 Difference]: With dead ends: 193 [2021-11-23 02:49:28,617 INFO L226 Difference]: Without dead ends: 139 [2021-11-23 02:49:28,623 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:49:28,626 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:49:28,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 329 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:49:28,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-11-23 02:49:28,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2021-11-23 02:49:28,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 84 states have (on average 1.3452380952380953) internal successors, (113), 87 states have internal predecessors, (113), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-23 02:49:28,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 190 transitions. [2021-11-23 02:49:28,662 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 190 transitions. Word has length 54 [2021-11-23 02:49:28,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:49:28,663 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 190 transitions. [2021-11-23 02:49:28,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-23 02:49:28,664 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 190 transitions. [2021-11-23 02:49:28,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-23 02:49:28,670 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:49:28,671 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:49:28,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:49:28,671 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:49:28,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:49:28,672 INFO L85 PathProgramCache]: Analyzing trace with hash 869713582, now seen corresponding path program 1 times [2021-11-23 02:49:28,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:49:28,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951481399] [2021-11-23 02:49:28,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:49:28,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:49:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:49:28,816 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:49:28,816 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:49:28,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951481399] [2021-11-23 02:49:28,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951481399] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:49:28,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:49:28,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:49:28,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281863580] [2021-11-23 02:49:28,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:49:28,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:49:28,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:49:28,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:49:28,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:49:28,822 INFO L87 Difference]: Start difference. First operand 139 states and 190 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-23 02:49:28,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:49:28,924 INFO L93 Difference]: Finished difference Result 308 states and 439 transitions. [2021-11-23 02:49:28,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:49:28,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 59 [2021-11-23 02:49:28,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:49:28,929 INFO L225 Difference]: With dead ends: 308 [2021-11-23 02:49:28,930 INFO L226 Difference]: Without dead ends: 187 [2021-11-23 02:49:28,932 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:49:28,940 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 57 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:49:28,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 346 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:49:28,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-11-23 02:49:28,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 182. [2021-11-23 02:49:28,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 116 states have (on average 1.4310344827586208) internal successors, (166), 119 states have internal predecessors, (166), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2021-11-23 02:49:28,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 265 transitions. [2021-11-23 02:49:28,977 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 265 transitions. Word has length 59 [2021-11-23 02:49:28,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:49:28,977 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 265 transitions. [2021-11-23 02:49:28,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-23 02:49:28,978 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 265 transitions. [2021-11-23 02:49:28,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-23 02:49:28,981 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:49:28,981 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:49:28,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:49:28,982 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:49:28,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:49:28,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1642175714, now seen corresponding path program 1 times [2021-11-23 02:49:28,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:49:28,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048197110] [2021-11-23 02:49:28,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:49:28,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:49:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:49:29,091 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:49:29,092 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:49:29,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048197110] [2021-11-23 02:49:29,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048197110] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:49:29,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856083105] [2021-11-23 02:49:29,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:49:29,093 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:49:29,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:49:29,095 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:49:29,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:49:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:49:29,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 875 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:49:29,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:49:29,575 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:49:29,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:49:29,755 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:49:29,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856083105] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:49:29,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1694593476] [2021-11-23 02:49:29,788 INFO L159 IcfgInterpreter]: Started Sifa with 49 locations of interest [2021-11-23 02:49:29,797 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:49:29,807 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:49:29,812 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:49:29,814 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:49:56,763 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2021-11-23 02:49:57,047 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2021-11-23 02:49:57,360 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 250 for LOIs [2021-11-23 02:49:58,154 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 245 for LOIs [2021-11-23 02:50:10,951 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 228 for LOIs [2021-11-23 02:50:10,988 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 447 for LOIs [2021-11-23 02:50:11,525 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:50:33,648 WARN L227 SmtUtils]: Spent 5.26s 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) [2021-11-23 02:50:39,295 WARN L227 SmtUtils]: Spent 5.41s on a formula simplification. DAG size of input: 472 DAG size of output: 325 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:51:08,974 WARN L227 SmtUtils]: Spent 5.04s on a formula simplification. DAG size of input: 573 DAG size of output: 355 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:51:14,374 WARN L227 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 577 DAG size of output: 359 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:51:38,442 WARN L227 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 549 DAG size of output: 346 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:51:44,814 WARN L227 SmtUtils]: Spent 5.54s on a formula simplification. DAG size of input: 591 DAG size of output: 371 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:51:47,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1694593476] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:51:47,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:51:47,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [4, 4, 4] total 42 [2021-11-23 02:51:47,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217090204] [2021-11-23 02:51:47,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:51:47,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-11-23 02:51:47,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:51:47,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-11-23 02:51:47,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1610, Unknown=0, NotChecked=0, Total=1722 [2021-11-23 02:51:47,331 INFO L87 Difference]: Start difference. First operand 182 states and 265 transitions. Second operand has 37 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 24 states have internal predecessors, (32), 12 states have call successors, (12), 7 states have call predecessors, (12), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-11-23 02:52:15,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:52:15,578 INFO L93 Difference]: Finished difference Result 467 states and 727 transitions. [2021-11-23 02:52:15,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-23 02:52:15,579 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 24 states have internal predecessors, (32), 12 states have call successors, (12), 7 states have call predecessors, (12), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 60 [2021-11-23 02:52:15,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:52:15,582 INFO L225 Difference]: With dead ends: 467 [2021-11-23 02:52:15,583 INFO L226 Difference]: Without dead ends: 303 [2021-11-23 02:52:15,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 141 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 113.9s TimeCoverageRelationStatistics Valid=155, Invalid=2101, Unknown=0, NotChecked=0, Total=2256 [2021-11-23 02:52:15,585 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 230 mSDsluCounter, 3251 mSDsCounter, 0 mSdLazyCounter, 3599 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 3387 SdHoareTripleChecker+Invalid, 3623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:52:15,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 3387 Invalid, 3623 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 3599 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2021-11-23 02:52:15,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2021-11-23 02:52:15,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 249. [2021-11-23 02:52:15,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 175 states have (on average 1.48) internal successors, (259), 178 states have internal predecessors, (259), 55 states have call successors, (55), 20 states have call predecessors, (55), 18 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2021-11-23 02:52:15,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 368 transitions. [2021-11-23 02:52:15,671 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 368 transitions. Word has length 60 [2021-11-23 02:52:15,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:52:15,672 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 368 transitions. [2021-11-23 02:52:15,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 24 states have internal predecessors, (32), 12 states have call successors, (12), 7 states have call predecessors, (12), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-11-23 02:52:15,672 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 368 transitions. [2021-11-23 02:52:15,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-23 02:52:15,674 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:52:15,675 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:52:15,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-23 02:52:15,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:52:15,891 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:52:15,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:52:15,891 INFO L85 PathProgramCache]: Analyzing trace with hash -558957150, now seen corresponding path program 1 times [2021-11-23 02:52:15,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:52:15,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075661718] [2021-11-23 02:52:15,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:52:15,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:52:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:52:15,986 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:52:15,987 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:52:15,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075661718] [2021-11-23 02:52:15,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075661718] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:52:15,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:52:15,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:52:15,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671737484] [2021-11-23 02:52:15,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:52:15,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:52:15,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:52:15,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:52:15,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:52:15,990 INFO L87 Difference]: Start difference. First operand 249 states and 368 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-23 02:52:16,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:52:16,145 INFO L93 Difference]: Finished difference Result 612 states and 942 transitions. [2021-11-23 02:52:16,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:52:16,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 65 [2021-11-23 02:52:16,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:52:16,150 INFO L225 Difference]: With dead ends: 612 [2021-11-23 02:52:16,150 INFO L226 Difference]: Without dead ends: 389 [2021-11-23 02:52:16,151 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:52:16,152 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 55 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:52:16,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 352 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:52:16,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2021-11-23 02:52:16,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 382. [2021-11-23 02:52:16,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 283 states have (on average 1.540636042402827) internal successors, (436), 286 states have internal predecessors, (436), 80 states have call successors, (80), 20 states have call predecessors, (80), 18 states have return successors, (79), 77 states have call predecessors, (79), 79 states have call successors, (79) [2021-11-23 02:52:16,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 595 transitions. [2021-11-23 02:52:16,249 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 595 transitions. Word has length 65 [2021-11-23 02:52:16,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:52:16,250 INFO L470 AbstractCegarLoop]: Abstraction has 382 states and 595 transitions. [2021-11-23 02:52:16,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-23 02:52:16,250 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 595 transitions. [2021-11-23 02:52:16,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 02:52:16,252 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:52:16,253 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:52:16,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:52:16,253 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:52:16,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:52:16,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1764406809, now seen corresponding path program 1 times [2021-11-23 02:52:16,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:52:16,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141300082] [2021-11-23 02:52:16,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:52:16,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:52:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:52:16,311 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:52:16,311 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:52:16,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141300082] [2021-11-23 02:52:16,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141300082] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:52:16,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732490438] [2021-11-23 02:52:16,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:52:16,312 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:52:16,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:52:16,329 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:52:16,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:52:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:52:16,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:52:16,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:52:16,660 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:52:16,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:52:16,772 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:52:16,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732490438] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:52:16,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1027017293] [2021-11-23 02:52:16,776 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2021-11-23 02:52:16,776 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:52:16,777 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:52:16,777 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:52:16,778 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:52:54,376 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2021-11-23 02:52:54,631 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2021-11-23 02:52:54,877 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:53:05,978 WARN L227 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 444 DAG size of output: 308 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:53:11,470 WARN L227 SmtUtils]: Spent 5.34s on a formula simplification. DAG size of input: 467 DAG size of output: 328 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:53:55,168 WARN L227 SmtUtils]: Spent 14.67s on a formula simplification. DAG size of input: 587 DAG size of output: 411 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:54:16,519 WARN L227 SmtUtils]: Spent 11.76s on a formula simplification. DAG size of input: 588 DAG size of output: 449 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:54:22,092 WARN L227 SmtUtils]: Spent 5.04s on a formula simplification. DAG size of input: 557 DAG size of output: 371 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:54:30,347 WARN L227 SmtUtils]: Spent 7.61s on a formula simplification. DAG size of input: 588 DAG size of output: 415 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:54:30,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1027017293] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:54:30,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:54:30,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2021-11-23 02:54:30,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354006914] [2021-11-23 02:54:30,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:54:30,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-23 02:54:30,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:54:30,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-23 02:54:30,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=763, Unknown=0, NotChecked=0, Total=870 [2021-11-23 02:54:30,353 INFO L87 Difference]: Start difference. First operand 382 states and 595 transitions. Second operand has 25 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 8 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2021-11-23 02:54:42,052 WARN L227 SmtUtils]: Spent 10.59s on a formula simplification. DAG size of input: 488 DAG size of output: 402 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:55:02,384 WARN L227 SmtUtils]: Spent 5.34s on a formula simplification. DAG size of input: 542 DAG size of output: 383 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:55:16,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:55:16,918 INFO L93 Difference]: Finished difference Result 745 states and 1187 transitions. [2021-11-23 02:55:16,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-23 02:55:16,919 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 8 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) Word has length 66 [2021-11-23 02:55:16,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:55:16,924 INFO L225 Difference]: With dead ends: 745 [2021-11-23 02:55:16,924 INFO L226 Difference]: Without dead ends: 491 [2021-11-23 02:55:16,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 135.3s TimeCoverageRelationStatistics Valid=198, Invalid=1362, Unknown=0, NotChecked=0, Total=1560 [2021-11-23 02:55:16,927 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 220 mSDsluCounter, 2572 mSDsCounter, 0 mSdLazyCounter, 2283 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 2315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:55:16,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 2700 Invalid, 2315 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 2283 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2021-11-23 02:55:16,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2021-11-23 02:55:17,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 414. [2021-11-23 02:55:17,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 311 states have (on average 1.5337620578778135) internal successors, (477), 316 states have internal predecessors, (477), 83 states have call successors, (83), 21 states have call predecessors, (83), 19 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2021-11-23 02:55:17,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 642 transitions. [2021-11-23 02:55:17,117 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 642 transitions. Word has length 66 [2021-11-23 02:55:17,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:55:17,118 INFO L470 AbstractCegarLoop]: Abstraction has 414 states and 642 transitions. [2021-11-23 02:55:17,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 8 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2021-11-23 02:55:17,118 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 642 transitions. [2021-11-23 02:55:17,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-23 02:55:17,128 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:55:17,128 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:55:17,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:55:17,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:55:17,355 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:55:17,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:55:17,355 INFO L85 PathProgramCache]: Analyzing trace with hash -583756649, now seen corresponding path program 1 times [2021-11-23 02:55:17,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:55:17,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326633878] [2021-11-23 02:55:17,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:55:17,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:55:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:55:17,483 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:55:17,484 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:55:17,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326633878] [2021-11-23 02:55:17,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326633878] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:55:17,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244969254] [2021-11-23 02:55:17,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:55:17,485 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:55:17,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:55:17,487 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:55:17,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:55:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:55:17,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:55:17,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:55:17,866 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:55:17,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:55:18,029 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:55:18,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244969254] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:55:18,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1872706123] [2021-11-23 02:55:18,037 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2021-11-23 02:55:18,037 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:55:18,038 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:55:18,038 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:55:18,039 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:56:23,778 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2021-11-23 02:56:24,026 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 437 for LOIs [2021-11-23 02:56:24,299 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 453 for LOIs [2021-11-23 02:56:24,593 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2021-11-23 02:56:24,854 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 456 for LOIs [2021-11-23 02:56:25,138 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:56:46,645 WARN L227 SmtUtils]: Spent 5.15s 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) [2021-11-23 02:56:52,268 WARN L227 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 472 DAG size of output: 325 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:57:29,910 WARN L227 SmtUtils]: Spent 15.75s on a formula simplification. DAG size of input: 627 DAG size of output: 504 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:58:08,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1872706123] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:58:08,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:58:08,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2021-11-23 02:58:08,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079778723] [2021-11-23 02:58:08,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:58:08,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-23 02:58:08,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:58:08,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-23 02:58:08,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=1021, Unknown=0, NotChecked=0, Total=1122 [2021-11-23 02:58:08,584 INFO L87 Difference]: Start difference. First operand 414 states and 642 transitions. Second operand has 29 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 17 states have internal predecessors, (35), 10 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) [2021-11-23 02:58:16,445 WARN L227 SmtUtils]: Spent 6.51s on a formula simplification. DAG size of input: 592 DAG size of output: 352 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:58:25,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:58:25,637 INFO L93 Difference]: Finished difference Result 825 states and 1322 transitions. [2021-11-23 02:58:25,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-23 02:58:25,644 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 17 states have internal predecessors, (35), 10 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) Word has length 69 [2021-11-23 02:58:25,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:58:25,649 INFO L225 Difference]: With dead ends: 825 [2021-11-23 02:58:25,650 INFO L226 Difference]: Without dead ends: 571 [2021-11-23 02:58:25,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 176 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 112.4s TimeCoverageRelationStatistics Valid=118, Invalid=1142, Unknown=0, NotChecked=0, Total=1260 [2021-11-23 02:58:25,652 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 117 mSDsluCounter, 2850 mSDsCounter, 0 mSdLazyCounter, 2828 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 2960 SdHoareTripleChecker+Invalid, 2844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:58:25,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 2960 Invalid, 2844 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 2828 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2021-11-23 02:58:25,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2021-11-23 02:58:25,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 499. [2021-11-23 02:58:25,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 388 states have (on average 1.5515463917525774) internal successors, (602), 395 states have internal predecessors, (602), 88 states have call successors, (88), 24 states have call predecessors, (88), 22 states have return successors, (87), 81 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-23 02:58:25,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 777 transitions. [2021-11-23 02:58:25,864 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 777 transitions. Word has length 69 [2021-11-23 02:58:25,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:58:25,864 INFO L470 AbstractCegarLoop]: Abstraction has 499 states and 777 transitions. [2021-11-23 02:58:25,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 17 states have internal predecessors, (35), 10 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) [2021-11-23 02:58:25,865 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 777 transitions. [2021-11-23 02:58:25,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-23 02:58:25,867 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:58:25,868 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:58:25,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-23 02:58:26,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:58:26,079 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:58:26,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:58:26,080 INFO L85 PathProgramCache]: Analyzing trace with hash -705683268, now seen corresponding path program 1 times [2021-11-23 02:58:26,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:58:26,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505790891] [2021-11-23 02:58:26,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:58:26,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:58:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:58:26,175 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-23 02:58:26,176 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:58:26,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505790891] [2021-11-23 02:58:26,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505790891] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:58:26,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:58:26,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:58:26,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349840509] [2021-11-23 02:58:26,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:58:26,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:58:26,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:58:26,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:58:26,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:58:26,179 INFO L87 Difference]: Start difference. First operand 499 states and 777 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, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-23 02:58:26,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:58:26,500 INFO L93 Difference]: Finished difference Result 572 states and 863 transitions. [2021-11-23 02:58:26,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:58:26,501 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, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 71 [2021-11-23 02:58:26,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:58:26,506 INFO L225 Difference]: With dead ends: 572 [2021-11-23 02:58:26,506 INFO L226 Difference]: Without dead ends: 519 [2021-11-23 02:58:26,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:58:26,508 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 117 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:58:26,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 213 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:58:26,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2021-11-23 02:58:26,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 517. [2021-11-23 02:58:26,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 397 states have (on average 1.5390428211586902) internal successors, (611), 405 states have internal predecessors, (611), 92 states have call successors, (92), 30 states have call predecessors, (92), 27 states have return successors, (91), 84 states have call predecessors, (91), 91 states have call successors, (91) [2021-11-23 02:58:26,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 794 transitions. [2021-11-23 02:58:26,778 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 794 transitions. Word has length 71 [2021-11-23 02:58:26,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:58:26,778 INFO L470 AbstractCegarLoop]: Abstraction has 517 states and 794 transitions. [2021-11-23 02:58:26,779 INFO L471 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, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-23 02:58:26,779 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 794 transitions. [2021-11-23 02:58:26,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-23 02:58:26,787 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:58:26,787 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:58:26,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:58:26,788 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:58:26,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:58:26,788 INFO L85 PathProgramCache]: Analyzing trace with hash -993564796, now seen corresponding path program 1 times [2021-11-23 02:58:26,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:58:26,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304770162] [2021-11-23 02:58:26,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:58:26,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:58:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:58:26,873 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-23 02:58:26,873 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:58:26,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304770162] [2021-11-23 02:58:26,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304770162] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:58:26,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969047615] [2021-11-23 02:58:26,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:58:26,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:58:26,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:58:26,879 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:58:26,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173296c9-8ff8-4e7b-bbec-b48e9b6113e1/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 02:58:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:58:27,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 1108 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:58:27,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:58:27,284 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-23 02:58:27,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:58:27,455 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-23 02:58:27,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969047615] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:58:27,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [781131608] [2021-11-23 02:58:27,462 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2021-11-23 02:58:27,462 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:58:27,463 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:58:27,463 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:58:27,464 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:58:50,304 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2021-11-23 02:58:50,562 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2021-11-23 02:58:50,821 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 250 for LOIs [2021-11-23 02:58:52,289 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 247 for LOIs [2021-11-23 02:59:04,955 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 457 for LOIs [2021-11-23 02:59:05,427 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 476 for LOIs [2021-11-23 02:59:06,925 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 446 for LOIs [2021-11-23 02:59:07,157 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:59:18,317 WARN L227 SmtUtils]: Spent 5.17s on a formula simplification. DAG size of input: 444 DAG size of output: 308 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:59:23,872 WARN L227 SmtUtils]: Spent 5.40s on a formula simplification. DAG size of input: 468 DAG size of output: 328 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:59:29,867 WARN L227 SmtUtils]: Spent 5.23s 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) [2021-11-23 02:59:35,614 WARN L227 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 472 DAG size of output: 325 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:00:05,649 WARN L227 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 573 DAG size of output: 355 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:00:11,078 WARN L227 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 577 DAG size of output: 359 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:00:26,980 WARN L227 SmtUtils]: Spent 12.20s on a formula simplification. DAG size of input: 476 DAG size of output: 363 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:00:48,237 WARN L227 SmtUtils]: Spent 10.74s on a formula simplification. DAG size of input: 457 DAG size of output: 346 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:01:01,097 WARN L227 SmtUtils]: Spent 11.23s on a formula simplification. DAG size of input: 475 DAG size of output: 354 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)