./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW --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 3d6b4da8bd47478af9a0348a2f21d8475ccd8463dda8c629c98551dc6b564226 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:19:36,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:19:36,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:19:36,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:19:36,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:19:36,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:19:36,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:19:36,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:19:36,562 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:19:36,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:19:36,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:19:36,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:19:36,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:19:36,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:19:36,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:19:36,569 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:19:36,570 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:19:36,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:19:36,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:19:36,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:19:36,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:19:36,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:19:36,579 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:19:36,580 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:19:36,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:19:36,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:19:36,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:19:36,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:19:36,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:19:36,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:19:36,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:19:36,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:19:36,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:19:36,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:19:36,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:19:36,591 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:19:36,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:19:36,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:19:36,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:19:36,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:19:36,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:19:36,594 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:19:36,619 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:19:36,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:19:36,620 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:19:36,620 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:19:36,621 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:19:36,621 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:19:36,622 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:19:36,622 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:19:36,622 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:19:36,622 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:19:36,623 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:19:36,623 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:19:36,623 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:19:36,623 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:19:36,624 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:19:36,624 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:19:36,624 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:19:36,625 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:19:36,625 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:19:36,625 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:19:36,626 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:19:36,626 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:19:36,626 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:19:36,626 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:19:36,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:19:36,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:19:36,627 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:19:36,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:19:36,628 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:19:36,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:19:36,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:19:36,629 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:19:36,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:19:36,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:19:36,629 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:19:36,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:19:36,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:19:36,630 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:19:36,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:19:36,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:19:36,631 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:19:36,631 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d6b4da8bd47478af9a0348a2f21d8475ccd8463dda8c629c98551dc6b564226 [2022-11-23 14:19:36,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:19:36,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:19:36,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:19:36,904 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:19:36,905 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:19:36,906 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/email_spec11_product40.cil.c [2022-11-23 14:19:40,048 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:19:40,428 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:19:40,428 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/sv-benchmarks/c/product-lines/email_spec11_product40.cil.c [2022-11-23 14:19:40,447 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/data/e399699a4/c59dd097d9364159a44eb046da741772/FLAGb2f7f0ee1 [2022-11-23 14:19:40,481 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/data/e399699a4/c59dd097d9364159a44eb046da741772 [2022-11-23 14:19:40,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:19:40,485 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:19:40,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:19:40,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:19:40,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:19:40,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:19:40" (1/1) ... [2022-11-23 14:19:40,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f604146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:40, skipping insertion in model container [2022-11-23 14:19:40,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:19:40" (1/1) ... [2022-11-23 14:19:40,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:19:40,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:19:40,915 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/sv-benchmarks/c/product-lines/email_spec11_product40.cil.c[8480,8493] [2022-11-23 14:19:41,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:19:41,290 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:19:41,327 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/sv-benchmarks/c/product-lines/email_spec11_product40.cil.c[8480,8493] [2022-11-23 14:19:41,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:19:41,452 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:19:41,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41 WrapperNode [2022-11-23 14:19:41,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:19:41,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:19:41,455 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:19:41,455 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:19:41,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41" (1/1) ... [2022-11-23 14:19:41,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41" (1/1) ... [2022-11-23 14:19:41,578 INFO L138 Inliner]: procedures = 127, calls = 205, calls flagged for inlining = 52, calls inlined = 49, statements flattened = 910 [2022-11-23 14:19:41,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:19:41,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:19:41,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:19:41,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:19:41,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41" (1/1) ... [2022-11-23 14:19:41,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41" (1/1) ... [2022-11-23 14:19:41,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41" (1/1) ... [2022-11-23 14:19:41,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41" (1/1) ... [2022-11-23 14:19:41,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41" (1/1) ... [2022-11-23 14:19:41,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41" (1/1) ... [2022-11-23 14:19:41,666 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41" (1/1) ... [2022-11-23 14:19:41,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41" (1/1) ... [2022-11-23 14:19:41,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:19:41,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:19:41,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:19:41,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:19:41,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41" (1/1) ... [2022-11-23 14:19:41,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:19:41,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:19:41,730 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:19:41,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:19:41,771 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-23 14:19:41,771 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-23 14:19:41,771 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-23 14:19:41,771 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-23 14:19:41,772 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-23 14:19:41,772 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-23 14:19:41,772 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-23 14:19:41,772 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-23 14:19:41,772 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-23 14:19:41,772 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-23 14:19:41,772 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-23 14:19:41,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-23 14:19:41,773 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-23 14:19:41,773 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-23 14:19:41,773 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-23 14:19:41,773 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-23 14:19:41,773 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-23 14:19:41,773 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-23 14:19:41,774 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-23 14:19:41,774 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-23 14:19:41,774 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-23 14:19:41,774 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-23 14:19:41,774 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-23 14:19:41,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:19:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-23 14:19:41,775 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-23 14:19:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-23 14:19:41,775 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-23 14:19:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-23 14:19:41,775 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-23 14:19:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-23 14:19:41,776 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-23 14:19:41,776 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-23 14:19:41,776 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-23 14:19:41,776 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-23 14:19:41,776 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-23 14:19:41,776 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-23 14:19:41,776 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-23 14:19:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:19:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-23 14:19:41,777 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-23 14:19:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-23 14:19:41,777 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-23 14:19:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:19:41,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:19:41,983 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:19:41,986 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:19:42,834 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:19:43,410 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:19:43,410 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:19:43,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:19:43 BoogieIcfgContainer [2022-11-23 14:19:43,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:19:43,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:19:43,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:19:43,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:19:43,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:19:40" (1/3) ... [2022-11-23 14:19:43,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d0cc2da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:19:43, skipping insertion in model container [2022-11-23 14:19:43,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41" (2/3) ... [2022-11-23 14:19:43,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d0cc2da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:19:43, skipping insertion in model container [2022-11-23 14:19:43,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:19:43" (3/3) ... [2022-11-23 14:19:43,427 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product40.cil.c [2022-11-23 14:19:43,447 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:19:43,447 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:19:43,509 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:19:43,519 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@14bb3979, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:19:43,520 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:19:43,526 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 97 states have (on average 1.3195876288659794) internal successors, (128), 100 states have internal predecessors, (128), 52 states have call successors, (52), 20 states have call predecessors, (52), 20 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2022-11-23 14:19:43,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-23 14:19:43,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:19:43,546 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:19:43,547 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:19:43,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:19:43,554 INFO L85 PathProgramCache]: Analyzing trace with hash -326575407, now seen corresponding path program 1 times [2022-11-23 14:19:43,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:19:43,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672321035] [2022-11-23 14:19:43,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:19:43,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:19:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:19:43,988 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:19:43,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:19:43,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672321035] [2022-11-23 14:19:43,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672321035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:19:43,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:19:43,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:19:43,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872802557] [2022-11-23 14:19:43,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:19:43,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:19:43,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:19:44,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:19:44,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:19:44,049 INFO L87 Difference]: Start difference. First operand has 171 states, 97 states have (on average 1.3195876288659794) internal successors, (128), 100 states have internal predecessors, (128), 52 states have call successors, (52), 20 states have call predecessors, (52), 20 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:19:44,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:19:44,226 INFO L93 Difference]: Finished difference Result 250 states and 335 transitions. [2022-11-23 14:19:44,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:19:44,232 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2022-11-23 14:19:44,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:19:44,248 INFO L225 Difference]: With dead ends: 250 [2022-11-23 14:19:44,249 INFO L226 Difference]: Without dead ends: 168 [2022-11-23 14:19:44,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:19:44,262 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:19:44,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 196 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:19:44,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-11-23 14:19:44,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2022-11-23 14:19:44,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 95 states have (on average 1.2842105263157895) internal successors, (122), 97 states have internal predecessors, (122), 52 states have call successors, (52), 20 states have call predecessors, (52), 20 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2022-11-23 14:19:44,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 225 transitions. [2022-11-23 14:19:44,351 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 225 transitions. Word has length 61 [2022-11-23 14:19:44,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:19:44,354 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 225 transitions. [2022-11-23 14:19:44,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:19:44,356 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 225 transitions. [2022-11-23 14:19:44,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-23 14:19:44,359 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:19:44,359 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:19:44,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:19:44,360 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:19:44,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:19:44,361 INFO L85 PathProgramCache]: Analyzing trace with hash 2053130580, now seen corresponding path program 1 times [2022-11-23 14:19:44,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:19:44,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870722028] [2022-11-23 14:19:44,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:19:44,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:19:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:19:44,579 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:19:44,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:19:44,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870722028] [2022-11-23 14:19:44,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870722028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:19:44,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:19:44,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:19:44,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104951074] [2022-11-23 14:19:44,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:19:44,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:19:44,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:19:44,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:19:44,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:19:44,584 INFO L87 Difference]: Start difference. First operand 168 states and 225 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:19:44,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:19:44,720 INFO L93 Difference]: Finished difference Result 246 states and 320 transitions. [2022-11-23 14:19:44,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:19:44,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 62 [2022-11-23 14:19:44,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:19:44,723 INFO L225 Difference]: With dead ends: 246 [2022-11-23 14:19:44,723 INFO L226 Difference]: Without dead ends: 170 [2022-11-23 14:19:44,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:19:44,725 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 0 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:19:44,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 385 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:19:44,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-11-23 14:19:44,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2022-11-23 14:19:44,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 97 states have (on average 1.2783505154639174) internal successors, (124), 99 states have internal predecessors, (124), 52 states have call successors, (52), 20 states have call predecessors, (52), 20 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2022-11-23 14:19:44,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 227 transitions. [2022-11-23 14:19:44,743 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 227 transitions. Word has length 62 [2022-11-23 14:19:44,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:19:44,743 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 227 transitions. [2022-11-23 14:19:44,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:19:44,744 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 227 transitions. [2022-11-23 14:19:44,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-23 14:19:44,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:19:44,746 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:19:44,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:19:44,747 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:19:44,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:19:44,748 INFO L85 PathProgramCache]: Analyzing trace with hash -967816675, now seen corresponding path program 1 times [2022-11-23 14:19:44,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:19:44,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81455409] [2022-11-23 14:19:44,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:19:44,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:19:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:19:44,858 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:19:44,859 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:19:44,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81455409] [2022-11-23 14:19:44,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81455409] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:19:44,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:19:44,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:19:44,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580894445] [2022-11-23 14:19:44,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:19:44,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:19:44,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:19:44,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:19:44,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:19:44,862 INFO L87 Difference]: Start difference. First operand 170 states and 227 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:19:45,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:19:45,003 INFO L93 Difference]: Finished difference Result 375 states and 521 transitions. [2022-11-23 14:19:45,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:19:45,005 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 67 [2022-11-23 14:19:45,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:19:45,012 INFO L225 Difference]: With dead ends: 375 [2022-11-23 14:19:45,012 INFO L226 Difference]: Without dead ends: 223 [2022-11-23 14:19:45,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:19:45,014 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 59 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:19:45,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 401 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:19:45,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-11-23 14:19:45,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 218. [2022-11-23 14:19:45,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 131 states have (on average 1.366412213740458) internal successors, (179), 133 states have internal predecessors, (179), 66 states have call successors, (66), 20 states have call predecessors, (66), 20 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-11-23 14:19:45,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 310 transitions. [2022-11-23 14:19:45,049 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 310 transitions. Word has length 67 [2022-11-23 14:19:45,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:19:45,054 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 310 transitions. [2022-11-23 14:19:45,054 INFO L496 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:19:45,055 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 310 transitions. [2022-11-23 14:19:45,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-23 14:19:45,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:19:45,066 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:19:45,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:19:45,066 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:19:45,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:19:45,067 INFO L85 PathProgramCache]: Analyzing trace with hash -879699755, now seen corresponding path program 1 times [2022-11-23 14:19:45,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:19:45,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023443134] [2022-11-23 14:19:45,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:19:45,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:19:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:19:45,226 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:19:45,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:19:45,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023443134] [2022-11-23 14:19:45,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023443134] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:19:45,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620266578] [2022-11-23 14:19:45,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:19:45,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:19:45,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:19:45,232 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:19:45,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:19:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:19:45,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 963 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:19:45,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:19:45,667 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:19:45,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:19:45,741 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:19:45,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620266578] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:19:45,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1746882740] [2022-11-23 14:19:45,762 INFO L159 IcfgInterpreter]: Started Sifa with 57 locations of interest [2022-11-23 14:19:45,763 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:19:45,766 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:19:45,775 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:19:45,775 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:20:28,994 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-23 14:20:29,401 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-23 14:20:29,746 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 457 for LOIs [2022-11-23 14:20:57,072 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 447 for LOIs [2022-11-23 14:20:57,402 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 455 for LOIs [2022-11-23 14:21:01,517 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 252 for LOIs [2022-11-23 14:21:05,444 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 240 for LOIs [2022-11-23 14:21:05,477 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 240 for LOIs [2022-11-23 14:21:05,518 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 449 for LOIs [2022-11-23 14:21:06,297 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 435 for LOIs [2022-11-23 14:21:06,592 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:21:35,410 WARN L233 SmtUtils]: Spent 5.68s on a formula simplification. DAG size of input: 470 DAG size of output: 312 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:21:57,266 WARN L233 SmtUtils]: Spent 6.15s on a formula simplification. DAG size of input: 514 DAG size of output: 325 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:22:17,965 WARN L233 SmtUtils]: Spent 20.38s on a formula simplification. DAG size of input: 591 DAG size of output: 466 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:22:29,215 WARN L233 SmtUtils]: Spent 10.90s on a formula simplification. DAG size of input: 593 DAG size of output: 350 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:22:50,054 WARN L233 SmtUtils]: Spent 20.47s on a formula simplification. DAG size of input: 592 DAG size of output: 469 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:23:03,387 WARN L233 SmtUtils]: Spent 6.67s on a formula simplification. DAG size of input: 584 DAG size of output: 370 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:23:25,211 WARN L233 SmtUtils]: Spent 5.50s on a formula simplification. DAG size of input: 499 DAG size of output: 300 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:23:41,546 WARN L233 SmtUtils]: Spent 6.95s on a formula simplification. DAG size of input: 495 DAG size of output: 335 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:23:49,799 WARN L233 SmtUtils]: Spent 7.80s on a formula simplification. DAG size of input: 508 DAG size of output: 378 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:24:03,071 WARN L233 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 435 DAG size of output: 307 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:24:09,009 WARN L233 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 459 DAG size of output: 314 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:24:26,713 WARN L233 SmtUtils]: Spent 6.23s on a formula simplification. DAG size of input: 493 DAG size of output: 355 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:24:40,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1746882740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:24:40,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:24:40,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [4, 4, 4] total 55 [2022-11-23 14:24:40,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584306866] [2022-11-23 14:24:40,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:24:40,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-23 14:24:40,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:40,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-23 14:24:40,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=2823, Unknown=0, NotChecked=0, Total=2970 [2022-11-23 14:24:40,880 INFO L87 Difference]: Start difference. First operand 218 states and 310 transitions. Second operand has 50 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 30 states have internal predecessors, (35), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-23 14:24:54,292 WARN L233 SmtUtils]: Spent 9.96s on a formula simplification. DAG size of input: 540 DAG size of output: 426 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:25:10,193 WARN L233 SmtUtils]: Spent 11.13s on a formula simplification. DAG size of input: 595 DAG size of output: 392 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:25:21,935 WARN L233 SmtUtils]: Spent 11.25s on a formula simplification. DAG size of input: 596 DAG size of output: 391 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:25:33,838 WARN L233 SmtUtils]: Spent 11.27s on a formula simplification. DAG size of input: 598 DAG size of output: 393 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:25:44,800 WARN L233 SmtUtils]: Spent 10.14s on a formula simplification. DAG size of input: 586 DAG size of output: 440 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:25:58,688 WARN L233 SmtUtils]: Spent 12.63s on a formula simplification. DAG size of input: 601 DAG size of output: 442 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:26:15,578 WARN L233 SmtUtils]: Spent 15.71s on a formula simplification. DAG size of input: 594 DAG size of output: 414 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:26:44,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:26:44,116 INFO L93 Difference]: Finished difference Result 522 states and 775 transitions. [2022-11-23 14:26:44,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-11-23 14:26:44,117 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 30 states have internal predecessors, (35), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 68 [2022-11-23 14:26:44,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:26:44,119 INFO L225 Difference]: With dead ends: 522 [2022-11-23 14:26:44,120 INFO L226 Difference]: Without dead ends: 322 [2022-11-23 14:26:44,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 152 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 810 ImplicationChecksByTransitivity, 306.7s TimeCoverageRelationStatistics Valid=226, Invalid=3934, Unknown=0, NotChecked=0, Total=4160 [2022-11-23 14:26:44,123 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 265 mSDsluCounter, 5772 mSDsCounter, 0 mSdLazyCounter, 6982 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 5989 SdHoareTripleChecker+Invalid, 7016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 6982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:26:44,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 5989 Invalid, 7016 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [34 Valid, 6982 Invalid, 0 Unknown, 0 Unchecked, 30.1s Time] [2022-11-23 14:26:44,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-11-23 14:26:44,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 295. [2022-11-23 14:26:44,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 193 states have (on average 1.3626943005181347) internal successors, (263), 195 states have internal predecessors, (263), 75 states have call successors, (75), 29 states have call predecessors, (75), 26 states have return successors, (74), 70 states have call predecessors, (74), 74 states have call successors, (74) [2022-11-23 14:26:44,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 412 transitions. [2022-11-23 14:26:44,314 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 412 transitions. Word has length 68 [2022-11-23 14:26:44,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:26:44,315 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 412 transitions. [2022-11-23 14:26:44,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 30 states have internal predecessors, (35), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-23 14:26:44,315 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 412 transitions. [2022-11-23 14:26:44,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-23 14:26:44,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:26:44,318 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:26:44,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-23 14:26:44,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:26:44,522 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:26:44,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:26:44,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1741421416, now seen corresponding path program 1 times [2022-11-23 14:26:44,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:26:44,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217288439] [2022-11-23 14:26:44,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:26:44,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:26:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:26:44,661 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:26:44,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:26:44,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217288439] [2022-11-23 14:26:44,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217288439] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:26:44,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218556808] [2022-11-23 14:26:44,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:26:44,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:26:44,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:26:44,664 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:26:44,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:26:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:26:44,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:26:44,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:26:45,018 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:26:45,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:26:45,087 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:26:45,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218556808] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:26:45,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2092715265] [2022-11-23 14:26:45,091 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-23 14:26:45,091 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:26:45,091 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:26:45,092 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:26:45,092 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:27:30,764 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-23 14:27:31,185 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-11-23 14:27:31,501 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:27:44,400 WARN L233 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 444 DAG size of output: 244 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:27:49,805 WARN L233 SmtUtils]: Spent 5.30s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:28:05,579 WARN L233 SmtUtils]: Spent 5.74s on a formula simplification. DAG size of input: 470 DAG size of output: 312 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:28:27,611 WARN L233 SmtUtils]: Spent 6.21s on a formula simplification. DAG size of input: 514 DAG size of output: 325 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:28:48,456 WARN L233 SmtUtils]: Spent 20.46s on a formula simplification. DAG size of input: 589 DAG size of output: 459 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:28:59,623 WARN L233 SmtUtils]: Spent 10.81s on a formula simplification. DAG size of input: 591 DAG size of output: 338 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:29:10,671 WARN L233 SmtUtils]: Spent 10.68s on a formula simplification. DAG size of input: 590 DAG size of output: 339 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:29:20,160 WARN L233 SmtUtils]: Spent 9.15s on a formula simplification. DAG size of input: 572 DAG size of output: 376 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:29:27,333 WARN L233 SmtUtils]: Spent 6.81s on a formula simplification. DAG size of input: 572 DAG size of output: 326 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:29:34,468 WARN L233 SmtUtils]: Spent 6.75s on a formula simplification. DAG size of input: 570 DAG size of output: 324 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:29:38,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2092715265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:29:38,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:29:38,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-23 14:29:38,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205686969] [2022-11-23 14:29:38,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:29:38,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-23 14:29:38,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:29:38,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-23 14:29:38,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=765, Unknown=0, NotChecked=0, Total=870 [2022-11-23 14:29:38,597 INFO L87 Difference]: Start difference. First operand 295 states and 412 transitions. Second operand has 25 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-23 14:29:55,298 WARN L233 SmtUtils]: Spent 14.94s on a formula simplification. DAG size of input: 533 DAG size of output: 412 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:30:11,358 WARN L233 SmtUtils]: Spent 7.25s on a formula simplification. DAG size of input: 461 DAG size of output: 367 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:30:17,742 WARN L233 SmtUtils]: Spent 6.09s on a formula simplification. DAG size of input: 405 DAG size of output: 367 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:30:24,100 WARN L233 SmtUtils]: Spent 6.03s on a formula simplification. DAG size of input: 403 DAG size of output: 365 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:30:39,931 WARN L233 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 460 DAG size of output: 368 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:30:46,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:30:46,410 INFO L93 Difference]: Finished difference Result 590 states and 869 transitions. [2022-11-23 14:30:46,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-23 14:30:46,411 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 74 [2022-11-23 14:30:46,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:30:46,416 INFO L225 Difference]: With dead ends: 590 [2022-11-23 14:30:46,416 INFO L226 Difference]: Without dead ends: 390 [2022-11-23 14:30:46,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 184.4s TimeCoverageRelationStatistics Valid=195, Invalid=1287, Unknown=0, NotChecked=0, Total=1482 [2022-11-23 14:30:46,418 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 201 mSDsluCounter, 3092 mSDsCounter, 0 mSdLazyCounter, 2276 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 3291 SdHoareTripleChecker+Invalid, 2296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:30:46,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 3291 Invalid, 2296 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 2276 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2022-11-23 14:30:46,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-11-23 14:30:46,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 309. [2022-11-23 14:30:46,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 205 states have (on average 1.3658536585365855) internal successors, (280), 207 states have internal predecessors, (280), 76 states have call successors, (76), 30 states have call predecessors, (76), 27 states have return successors, (75), 71 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-23 14:30:46,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 431 transitions. [2022-11-23 14:30:46,605 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 431 transitions. Word has length 74 [2022-11-23 14:30:46,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:30:46,605 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 431 transitions. [2022-11-23 14:30:46,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-23 14:30:46,606 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 431 transitions. [2022-11-23 14:30:46,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-23 14:30:46,607 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:30:46,608 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:30:46,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:30:46,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:30:46,809 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:30:46,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:30:46,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1666910245, now seen corresponding path program 1 times [2022-11-23 14:30:46,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:30:46,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889775759] [2022-11-23 14:30:46,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:30:46,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:30:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:30:46,970 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:30:46,971 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:30:46,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889775759] [2022-11-23 14:30:46,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889775759] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:30:46,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303983517] [2022-11-23 14:30:46,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:30:46,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:30:46,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:30:46,973 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:30:46,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21063f05-8811-4145-b93c-e598abd91d4a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:30:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:30:47,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:30:47,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:30:47,308 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:30:47,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:30:47,370 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:30:47,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303983517] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:30:47,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [724880948] [2022-11-23 14:30:47,374 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2022-11-23 14:30:47,374 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:30:47,375 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:30:47,375 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:30:47,375 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:32:33,942 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-11-23 14:32:34,261 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 418 for LOIs [2022-11-23 14:32:34,602 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 415 for LOIs [2022-11-23 14:32:34,899 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 218 for LOIs [2022-11-23 14:32:36,165 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 211 for LOIs [2022-11-23 14:32:36,227 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 208 for LOIs [2022-11-23 14:32:36,260 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-23 14:32:36,580 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 218 for LOIs [2022-11-23 14:32:37,145 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 223 for LOIs [2022-11-23 14:32:39,064 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 211 for LOIs [2022-11-23 14:32:39,097 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 416 for LOIs [2022-11-23 14:32:43,262 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 198 for LOIs [2022-11-23 14:32:43,293 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:33:01,141 WARN L233 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 463 DAG size of output: 259 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:33:15,202 WARN L233 SmtUtils]: Spent 5.71s on a formula simplification. DAG size of input: 470 DAG size of output: 312 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)