./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI --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 67a5f870249755b02192cafa5b1141561e5c0ebfbfae7faed4cfc72be0ad5c3d --- 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-5e519f3 [2022-11-03 02:49:19,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:49:19,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:49:19,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:49:19,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:49:19,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:49:19,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:49:19,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:49:19,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:49:19,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:49:19,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:49:19,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:49:19,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:49:19,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:49:19,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:49:19,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:49:19,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:49:19,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:49:19,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:49:19,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:49:19,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:49:19,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:49:19,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:49:19,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:49:19,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:49:19,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:49:19,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:49:19,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:49:19,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:49:19,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:49:19,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:49:19,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:49:19,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:49:19,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:49:19,488 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:49:19,488 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:49:19,489 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:49:19,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:49:19,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:49:19,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:49:19,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:49:19,492 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:49:19,520 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:49:19,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:49:19,520 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:49:19,521 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:49:19,521 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:49:19,522 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:49:19,522 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:49:19,522 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:49:19,522 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:49:19,523 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:49:19,523 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:49:19,523 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:49:19,523 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:49:19,524 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:49:19,524 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:49:19,524 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:49:19,524 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:49:19,525 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:49:19,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:49:19,526 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:49:19,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:49:19,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:49:19,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:49:19,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:49:19,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:49:19,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:49:19,527 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:49:19,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:49:19,528 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:49:19,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:49:19,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:49:19,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:49:19,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:49:19,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:49:19,529 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:49:19,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:49:19,530 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:49:19,530 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:49:19,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:49:19,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:49:19,531 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:49:19,531 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_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67a5f870249755b02192cafa5b1141561e5c0ebfbfae7faed4cfc72be0ad5c3d [2022-11-03 02:49:19,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:49:19,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:49:19,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:49:19,883 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:49:19,884 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:49:19,886 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/email_spec6_product32.cil.c [2022-11-03 02:49:19,977 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/data/e48c5c98d/c73a8547c55f4a07a27302f31510226a/FLAGd0f31d1eb [2022-11-03 02:49:20,645 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:49:20,650 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/sv-benchmarks/c/product-lines/email_spec6_product32.cil.c [2022-11-03 02:49:20,683 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/data/e48c5c98d/c73a8547c55f4a07a27302f31510226a/FLAGd0f31d1eb [2022-11-03 02:49:20,838 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/data/e48c5c98d/c73a8547c55f4a07a27302f31510226a [2022-11-03 02:49:20,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:49:20,842 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:49:20,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:49:20,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:49:20,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:49:20,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:49:20" (1/1) ... [2022-11-03 02:49:20,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@661bd9d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:20, skipping insertion in model container [2022-11-03 02:49:20,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:49:20" (1/1) ... [2022-11-03 02:49:20,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:49:20,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:49:21,383 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/sv-benchmarks/c/product-lines/email_spec6_product32.cil.c[40215,40228] [2022-11-03 02:49:21,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:49:21,669 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:49:21,763 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/sv-benchmarks/c/product-lines/email_spec6_product32.cil.c[40215,40228] [2022-11-03 02:49:21,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:49:21,826 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:49:21,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:21 WrapperNode [2022-11-03 02:49:21,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:49:21,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:49:21,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:49:21,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:49:21,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:21" (1/1) ... [2022-11-03 02:49:21,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:21" (1/1) ... [2022-11-03 02:49:21,925 INFO L138 Inliner]: procedures = 135, calls = 244, calls flagged for inlining = 62, calls inlined = 54, statements flattened = 1014 [2022-11-03 02:49:21,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:49:21,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:49:21,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:49:21,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:49:21,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:21" (1/1) ... [2022-11-03 02:49:21,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:21" (1/1) ... [2022-11-03 02:49:21,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:21" (1/1) ... [2022-11-03 02:49:21,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:21" (1/1) ... [2022-11-03 02:49:21,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:21" (1/1) ... [2022-11-03 02:49:21,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:21" (1/1) ... [2022-11-03 02:49:22,007 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:21" (1/1) ... [2022-11-03 02:49:22,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:21" (1/1) ... [2022-11-03 02:49:22,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:49:22,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:49:22,035 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:49:22,035 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:49:22,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:21" (1/1) ... [2022-11-03 02:49:22,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:49:22,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:49:22,096 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:49:22,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:49:22,152 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-03 02:49:22,152 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-03 02:49:22,152 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-03 02:49:22,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-03 02:49:22,153 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-03 02:49:22,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-03 02:49:22,153 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-03 02:49:22,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-03 02:49:22,153 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-03 02:49:22,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-03 02:49:22,154 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-03 02:49:22,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-03 02:49:22,154 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-03 02:49:22,154 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-03 02:49:22,154 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-03 02:49:22,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-03 02:49:22,155 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-03 02:49:22,155 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-03 02:49:22,155 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-03 02:49:22,155 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-03 02:49:22,155 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-03 02:49:22,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-03 02:49:22,156 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-03 02:49:22,156 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-03 02:49:22,156 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-03 02:49:22,156 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-03 02:49:22,157 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-03 02:49:22,157 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-03 02:49:22,157 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-03 02:49:22,157 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-03 02:49:22,159 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-03 02:49:22,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:49:22,159 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-03 02:49:22,159 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-03 02:49:22,160 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-03 02:49:22,160 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-03 02:49:22,160 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-03 02:49:22,160 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-03 02:49:22,160 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-03 02:49:22,160 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-03 02:49:22,161 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-03 02:49:22,161 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-03 02:49:22,161 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-03 02:49:22,162 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-03 02:49:22,162 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-03 02:49:22,162 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-03 02:49:22,163 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-03 02:49:22,163 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-03 02:49:22,164 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-03 02:49:22,165 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-03 02:49:22,165 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-03 02:49:22,165 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-03 02:49:22,165 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-03 02:49:22,166 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-03 02:49:22,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:49:22,166 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-03 02:49:22,166 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-03 02:49:22,167 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-03 02:49:22,167 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-03 02:49:22,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:49:22,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:49:22,513 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:49:22,519 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:49:23,483 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:49:24,159 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:49:24,159 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:49:24,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:49:24 BoogieIcfgContainer [2022-11-03 02:49:24,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:49:24,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:49:24,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:49:24,168 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:49:24,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:49:20" (1/3) ... [2022-11-03 02:49:24,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5978fd94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:49:24, skipping insertion in model container [2022-11-03 02:49:24,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:49:21" (2/3) ... [2022-11-03 02:49:24,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5978fd94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:49:24, skipping insertion in model container [2022-11-03 02:49:24,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:49:24" (3/3) ... [2022-11-03 02:49:24,173 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product32.cil.c [2022-11-03 02:49:24,193 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:49:24,193 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:49:24,294 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:49:24,308 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;@76bd612d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:49:24,309 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:49:24,315 INFO L276 IsEmpty]: Start isEmpty. Operand has 223 states, 126 states have (on average 1.3015873015873016) internal successors, (164), 131 states have internal predecessors, (164), 67 states have call successors, (67), 28 states have call predecessors, (67), 28 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2022-11-03 02:49:24,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-03 02:49:24,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:24,346 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:49:24,347 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:49:24,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:24,352 INFO L85 PathProgramCache]: Analyzing trace with hash 2055090057, now seen corresponding path program 1 times [2022-11-03 02:49:24,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:49:24,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382325402] [2022-11-03 02:49:24,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:24,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:49:24,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:24,787 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 02:49:24,788 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:49:24,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382325402] [2022-11-03 02:49:24,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382325402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:49:24,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:49:24,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:49:24,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569215843] [2022-11-03 02:49:24,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:49:24,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:49:24,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:49:24,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:49:24,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:49:24,845 INFO L87 Difference]: Start difference. First operand has 223 states, 126 states have (on average 1.3015873015873016) internal successors, (164), 131 states have internal predecessors, (164), 67 states have call successors, (67), 28 states have call predecessors, (67), 28 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 02:49:25,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:25,030 INFO L93 Difference]: Finished difference Result 354 states and 467 transitions. [2022-11-03 02:49:25,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:49:25,038 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 87 [2022-11-03 02:49:25,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:25,055 INFO L225 Difference]: With dead ends: 354 [2022-11-03 02:49:25,056 INFO L226 Difference]: Without dead ends: 220 [2022-11-03 02:49:25,064 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 [2022-11-03 02:49:25,066 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:25,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 253 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:49:25,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-03 02:49:25,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2022-11-03 02:49:25,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 124 states have (on average 1.2741935483870968) internal successors, (158), 128 states have internal predecessors, (158), 67 states have call successors, (67), 28 states have call predecessors, (67), 28 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2022-11-03 02:49:25,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 291 transitions. [2022-11-03 02:49:25,127 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 291 transitions. Word has length 87 [2022-11-03 02:49:25,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:25,128 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 291 transitions. [2022-11-03 02:49:25,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 02:49:25,129 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 291 transitions. [2022-11-03 02:49:25,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-03 02:49:25,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:25,132 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:49:25,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:49:25,133 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:49:25,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:25,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1616717141, now seen corresponding path program 1 times [2022-11-03 02:49:25,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:49:25,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110044252] [2022-11-03 02:49:25,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:25,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:49:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:25,443 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 02:49:25,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:49:25,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110044252] [2022-11-03 02:49:25,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110044252] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:49:25,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:49:25,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:49:25,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475238018] [2022-11-03 02:49:25,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:49:25,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:49:25,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:49:25,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:49:25,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:49:25,451 INFO L87 Difference]: Start difference. First operand 220 states and 291 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 02:49:25,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:25,652 INFO L93 Difference]: Finished difference Result 350 states and 452 transitions. [2022-11-03 02:49:25,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:49:25,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 88 [2022-11-03 02:49:25,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:25,661 INFO L225 Difference]: With dead ends: 350 [2022-11-03 02:49:25,661 INFO L226 Difference]: Without dead ends: 222 [2022-11-03 02:49:25,666 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 [2022-11-03 02:49:25,667 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 0 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:25,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 499 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:49:25,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-11-03 02:49:25,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2022-11-03 02:49:25,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 126 states have (on average 1.2698412698412698) internal successors, (160), 130 states have internal predecessors, (160), 67 states have call successors, (67), 28 states have call predecessors, (67), 28 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2022-11-03 02:49:25,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 293 transitions. [2022-11-03 02:49:25,707 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 293 transitions. Word has length 88 [2022-11-03 02:49:25,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:25,708 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 293 transitions. [2022-11-03 02:49:25,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 02:49:25,708 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 293 transitions. [2022-11-03 02:49:25,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-03 02:49:25,711 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:25,711 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:49:25,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:49:25,712 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:49:25,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:25,712 INFO L85 PathProgramCache]: Analyzing trace with hash -54829780, now seen corresponding path program 1 times [2022-11-03 02:49:25,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:49:25,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7514297] [2022-11-03 02:49:25,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:25,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:49:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:25,949 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 02:49:25,950 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:49:25,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7514297] [2022-11-03 02:49:25,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7514297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:49:25,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:49:25,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:49:25,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825728039] [2022-11-03 02:49:25,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:49:25,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:49:25,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:49:25,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:49:25,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:49:25,954 INFO L87 Difference]: Start difference. First operand 222 states and 293 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 02:49:26,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:26,187 INFO L93 Difference]: Finished difference Result 479 states and 653 transitions. [2022-11-03 02:49:26,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:49:26,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 93 [2022-11-03 02:49:26,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:26,193 INFO L225 Difference]: With dead ends: 479 [2022-11-03 02:49:26,193 INFO L226 Difference]: Without dead ends: 275 [2022-11-03 02:49:26,196 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 [2022-11-03 02:49:26,202 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 59 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:26,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 514 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:49:26,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-11-03 02:49:26,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 270. [2022-11-03 02:49:26,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 160 states have (on average 1.34375) internal successors, (215), 164 states have internal predecessors, (215), 81 states have call successors, (81), 28 states have call predecessors, (81), 28 states have return successors, (80), 79 states have call predecessors, (80), 80 states have call successors, (80) [2022-11-03 02:49:26,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 376 transitions. [2022-11-03 02:49:26,236 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 376 transitions. Word has length 93 [2022-11-03 02:49:26,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:26,237 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 376 transitions. [2022-11-03 02:49:26,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 02:49:26,238 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 376 transitions. [2022-11-03 02:49:26,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-03 02:49:26,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:26,247 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:49:26,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:49:26,248 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:49:26,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:26,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1999508090, now seen corresponding path program 1 times [2022-11-03 02:49:26,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:49:26,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357003739] [2022-11-03 02:49:26,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:26,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:49:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:26,551 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:49:26,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:49:26,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357003739] [2022-11-03 02:49:26,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357003739] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:49:26,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788996834] [2022-11-03 02:49:26,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:26,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:49:26,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:49:26,562 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:49:26,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:49:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:26,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 1264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:49:26,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:49:27,090 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:49:27,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:49:27,222 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:49:27,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788996834] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:49:27,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1764661016] [2022-11-03 02:49:27,251 INFO L159 IcfgInterpreter]: Started Sifa with 86 locations of interest [2022-11-03 02:49:27,259 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:49:27,265 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:49:27,271 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:49:27,272 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:50:14,698 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-03 02:50:15,022 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 273 for LOIs [2022-11-03 02:50:17,618 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-03 02:50:18,005 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 275 for LOIs [2022-11-03 02:50:21,568 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 241 for LOIs [2022-11-03 02:50:21,618 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 233 for LOIs [2022-11-03 02:50:21,658 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 241 for LOIs [2022-11-03 02:50:21,699 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 258 for LOIs [2022-11-03 02:50:21,747 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:50:53,466 WARN L234 SmtUtils]: Spent 7.01s on a formula simplification. DAG size of input: 468 DAG size of output: 351 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:51:29,285 WARN L234 SmtUtils]: Spent 12.85s on a formula simplification. DAG size of input: 574 DAG size of output: 439 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:51:38,672 WARN L234 SmtUtils]: Spent 8.18s on a formula simplification. DAG size of input: 578 DAG size of output: 327 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:51:45,360 WARN L234 SmtUtils]: Spent 6.32s on a formula simplification. DAG size of input: 563 DAG size of output: 362 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:51:52,156 WARN L234 SmtUtils]: Spent 6.41s on a formula simplification. DAG size of input: 569 DAG size of output: 368 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:52:24,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1764661016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:24,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:52:24,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [4, 4, 4] total 46 [2022-11-03 02:52:24,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37059101] [2022-11-03 02:52:24,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:24,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-03 02:52:24,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:24,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-03 02:52:24,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1956, Unknown=0, NotChecked=0, Total=2070 [2022-11-03 02:52:24,531 INFO L87 Difference]: Start difference. First operand 270 states and 376 transitions. Second operand has 41 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 25 states have internal predecessors, (50), 13 states have call successors, (24), 9 states have call predecessors, (24), 7 states have return successors, (21), 11 states have call predecessors, (21), 11 states have call successors, (21) [2022-11-03 02:52:35,629 WARN L234 SmtUtils]: Spent 6.31s on a formula simplification. DAG size of input: 550 DAG size of output: 360 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:53:28,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:53:28,192 INFO L93 Difference]: Finished difference Result 705 states and 1071 transitions. [2022-11-03 02:53:28,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-03 02:53:28,193 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 25 states have internal predecessors, (50), 13 states have call successors, (24), 9 states have call predecessors, (24), 7 states have return successors, (21), 11 states have call predecessors, (21), 11 states have call successors, (21) Word has length 105 [2022-11-03 02:53:28,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:53:28,196 INFO L225 Difference]: With dead ends: 705 [2022-11-03 02:53:28,197 INFO L226 Difference]: Without dead ends: 453 [2022-11-03 02:53:28,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 159.1s TimeCoverageRelationStatistics Valid=187, Invalid=2893, Unknown=0, NotChecked=0, Total=3080 [2022-11-03 02:53:28,200 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 342 mSDsluCounter, 5715 mSDsCounter, 0 mSdLazyCounter, 6539 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 5890 SdHoareTripleChecker+Invalid, 6576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 6539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:53:28,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 5890 Invalid, 6576 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [37 Valid, 6539 Invalid, 0 Unknown, 0 Unchecked, 26.5s Time] [2022-11-03 02:53:28,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-11-03 02:53:28,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 352. [2022-11-03 02:53:28,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 231 states have (on average 1.4155844155844155) internal successors, (327), 235 states have internal predecessors, (327), 87 states have call successors, (87), 35 states have call predecessors, (87), 33 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2022-11-03 02:53:28,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 500 transitions. [2022-11-03 02:53:28,372 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 500 transitions. Word has length 105 [2022-11-03 02:53:28,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:53:28,372 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 500 transitions. [2022-11-03 02:53:28,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 25 states have internal predecessors, (50), 13 states have call successors, (24), 9 states have call predecessors, (24), 7 states have return successors, (21), 11 states have call predecessors, (21), 11 states have call successors, (21) [2022-11-03 02:53:28,373 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 500 transitions. [2022-11-03 02:53:28,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-03 02:53:28,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:53:28,376 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:53:28,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:53:28,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:53:28,599 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:53:28,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:53:28,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1499648404, now seen corresponding path program 1 times [2022-11-03 02:53:28,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:53:28,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860717504] [2022-11-03 02:53:28,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:53:28,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:53:28,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:53:28,782 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 02:53:28,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:53:28,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860717504] [2022-11-03 02:53:28,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860717504] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:53:28,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675313970] [2022-11-03 02:53:28,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:53:28,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:53:28,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:53:28,787 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:53:28,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:53:29,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:53:29,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 1201 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:53:29,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:53:29,169 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 02:53:29,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:53:29,253 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 02:53:29,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675313970] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:53:29,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1414097566] [2022-11-03 02:53:29,260 INFO L159 IcfgInterpreter]: Started Sifa with 79 locations of interest [2022-11-03 02:53:29,261 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:53:29,261 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:53:29,262 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:53:29,262 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:54:02,979 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-03 02:54:03,298 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 273 for LOIs [2022-11-03 02:54:05,510 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 241 for LOIs [2022-11-03 02:54:05,553 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-03 02:54:05,853 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 273 for LOIs [2022-11-03 02:54:09,122 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 283 for LOIs [2022-11-03 02:54:21,672 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 231 for LOIs [2022-11-03 02:54:21,712 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 253 for LOIs [2022-11-03 02:54:21,799 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 437 for LOIs [2022-11-03 02:54:22,462 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 477 for LOIs [2022-11-03 02:54:24,513 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 255 for LOIs [2022-11-03 02:54:24,567 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 258 for LOIs [2022-11-03 02:54:24,632 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:54:57,917 WARN L234 SmtUtils]: Spent 7.59s on a formula simplification. DAG size of input: 468 DAG size of output: 351 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:55:03,580 WARN L234 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 480 DAG size of output: 305 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:55:09,974 WARN L234 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 490 DAG size of output: 281 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:55:27,368 WARN L234 SmtUtils]: Spent 6.32s on a formula simplification. DAG size of input: 565 DAG size of output: 338 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:55:54,435 WARN L234 SmtUtils]: Spent 8.62s on a formula simplification. DAG size of input: 477 DAG size of output: 283 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:56:45,418 WARN L234 SmtUtils]: Spent 9.39s on a formula simplification. DAG size of input: 437 DAG size of output: 261 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:56:58,295 WARN L234 SmtUtils]: Spent 9.76s on a formula simplification. DAG size of input: 456 DAG size of output: 269 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:57:04,457 WARN L234 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 475 DAG size of output: 335 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:57:18,239 WARN L234 SmtUtils]: Spent 7.44s on a formula simplification. DAG size of input: 482 DAG size of output: 376 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:57:26,440 WARN L234 SmtUtils]: Spent 7.03s on a formula simplification. DAG size of input: 484 DAG size of output: 377 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:57:36,484 WARN L234 SmtUtils]: Spent 7.72s on a formula simplification. DAG size of input: 526 DAG size of output: 399 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:57:54,363 WARN L234 SmtUtils]: Spent 8.23s on a formula simplification. DAG size of input: 544 DAG size of output: 411 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:58:03,777 WARN L234 SmtUtils]: Spent 8.25s on a formula simplification. DAG size of input: 545 DAG size of output: 412 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:58:10,433 WARN L234 SmtUtils]: Spent 5.65s on a formula simplification. DAG size of input: 552 DAG size of output: 372 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:58:17,636 WARN L234 SmtUtils]: Spent 6.08s on a formula simplification. DAG size of input: 577 DAG size of output: 397 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:58:17,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1414097566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:58:17,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:58:17,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [59] imperfect sequences [4, 4, 4] total 65 [2022-11-03 02:58:17,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972554078] [2022-11-03 02:58:17,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:58:17,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-11-03 02:58:17,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:58:17,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-11-03 02:58:17,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=3995, Unknown=0, NotChecked=0, Total=4160 [2022-11-03 02:58:17,645 INFO L87 Difference]: Start difference. First operand 352 states and 500 transitions. Second operand has 60 states, 38 states have (on average 1.236842105263158) internal successors, (47), 35 states have internal predecessors, (47), 19 states have call successors, (21), 13 states have call predecessors, (21), 10 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-03 02:59:24,398 WARN L234 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 465 DAG size of output: 324 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:59:30,148 WARN L234 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 465 DAG size of output: 326 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:59:37,010 WARN L234 SmtUtils]: Spent 5.90s on a formula simplification. DAG size of input: 486 DAG size of output: 347 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:00:09,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:00:09,816 INFO L93 Difference]: Finished difference Result 632 states and 910 transitions. [2022-11-03 03:00:09,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-11-03 03:00:09,819 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 38 states have (on average 1.236842105263158) internal successors, (47), 35 states have internal predecessors, (47), 19 states have call successors, (21), 13 states have call predecessors, (21), 10 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) Word has length 94 [2022-11-03 03:00:09,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:00:09,823 INFO L225 Difference]: With dead ends: 632 [2022-11-03 03:00:09,824 INFO L226 Difference]: Without dead ends: 511 [2022-11-03 03:00:09,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 219 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1343 ImplicationChecksByTransitivity, 288.3s TimeCoverageRelationStatistics Valid=272, Invalid=6048, Unknown=0, NotChecked=0, Total=6320 [2022-11-03 03:00:09,827 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 315 mSDsluCounter, 8557 mSDsCounter, 0 mSdLazyCounter, 11763 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 8652 SdHoareTripleChecker+Invalid, 11792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 11763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:00:09,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 8652 Invalid, 11792 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [29 Valid, 11763 Invalid, 0 Unknown, 0 Unchecked, 55.6s Time] [2022-11-03 03:00:09,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2022-11-03 03:00:10,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 403. [2022-11-03 03:00:10,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 263 states have (on average 1.391634980988593) internal successors, (366), 268 states have internal predecessors, (366), 101 states have call successors, (101), 40 states have call predecessors, (101), 38 states have return successors, (101), 96 states have call predecessors, (101), 100 states have call successors, (101) [2022-11-03 03:00:10,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 568 transitions. [2022-11-03 03:00:10,086 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 568 transitions. Word has length 94 [2022-11-03 03:00:10,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:00:10,087 INFO L495 AbstractCegarLoop]: Abstraction has 403 states and 568 transitions. [2022-11-03 03:00:10,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 38 states have (on average 1.236842105263158) internal successors, (47), 35 states have internal predecessors, (47), 19 states have call successors, (21), 13 states have call predecessors, (21), 10 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-03 03:00:10,087 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 568 transitions. [2022-11-03 03:00:10,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-03 03:00:10,090 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:00:10,091 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:00:10,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:00:10,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:00:10,319 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:00:10,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:00:10,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1987924033, now seen corresponding path program 1 times [2022-11-03 03:00:10,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:00:10,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532934033] [2022-11-03 03:00:10,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:00:10,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:00:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:00:10,420 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 03:00:10,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:00:10,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532934033] [2022-11-03 03:00:10,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532934033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:00:10,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:00:10,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:00:10,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657317322] [2022-11-03 03:00:10,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:00:10,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:00:10,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:00:10,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:00:10,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:00:10,423 INFO L87 Difference]: Start difference. First operand 403 states and 568 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 03:00:11,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:00:11,028 INFO L93 Difference]: Finished difference Result 893 states and 1292 transitions. [2022-11-03 03:00:11,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:00:11,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 99 [2022-11-03 03:00:11,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:00:11,033 INFO L225 Difference]: With dead ends: 893 [2022-11-03 03:00:11,033 INFO L226 Difference]: Without dead ends: 528 [2022-11-03 03:00:11,035 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 [2022-11-03 03:00:11,037 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 57 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:00:11,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 523 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:00:11,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-11-03 03:00:11,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 521. [2022-11-03 03:00:11,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 350 states have (on average 1.4285714285714286) internal successors, (500), 355 states have internal predecessors, (500), 132 states have call successors, (132), 40 states have call predecessors, (132), 38 states have return successors, (132), 127 states have call predecessors, (132), 131 states have call successors, (132) [2022-11-03 03:00:11,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 764 transitions. [2022-11-03 03:00:11,396 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 764 transitions. Word has length 99 [2022-11-03 03:00:11,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:00:11,396 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 764 transitions. [2022-11-03 03:00:11,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 03:00:11,397 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 764 transitions. [2022-11-03 03:00:11,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-03 03:00:11,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:00:11,401 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:00:11,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:00:11,401 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:00:11,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:00:11,402 INFO L85 PathProgramCache]: Analyzing trace with hash -787186006, now seen corresponding path program 1 times [2022-11-03 03:00:11,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:00:11,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182288112] [2022-11-03 03:00:11,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:00:11,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:00:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:00:11,615 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 03:00:11,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:00:11,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182288112] [2022-11-03 03:00:11,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182288112] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:00:11,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340474267] [2022-11-03 03:00:11,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:00:11,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:00:11,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:00:11,618 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:00:11,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4c8028-0dc9-4917-8fb4-b062e8e2e524/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 03:00:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:00:12,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:00:12,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:00:12,051 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 03:00:12,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:00:12,162 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 03:00:12,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340474267] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:00:12,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [347254804] [2022-11-03 03:00:12,173 INFO L159 IcfgInterpreter]: Started Sifa with 83 locations of interest [2022-11-03 03:00:12,174 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:00:12,175 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:00:12,175 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:00:12,175 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:01:10,158 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-03 03:01:10,513 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-03 03:01:10,862 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:01:20,831 WARN L234 SmtUtils]: Spent 5.04s on a formula simplification. DAG size of input: 508 DAG size of output: 501 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:01:35,957 WARN L234 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 445 DAG size of output: 286 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:01:41,982 WARN L234 SmtUtils]: Spent 5.86s on a formula simplification. DAG size of input: 468 DAG size of output: 306 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:01:50,668 WARN L234 SmtUtils]: Spent 8.40s on a formula simplification. DAG size of input: 468 DAG size of output: 351 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:01:56,719 WARN L234 SmtUtils]: Spent 5.74s on a formula simplification. DAG size of input: 480 DAG size of output: 305 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:02:03,925 WARN L234 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 490 DAG size of output: 281 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)