./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product18.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh --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 58fd69d2f74506159a7a57598b08a18ff098ebf1233f7e6688a335d4e30dd566 --- 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-2329fc7 [2022-12-14 08:31:00,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:31:00,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:31:00,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:31:00,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:31:00,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:31:00,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:31:00,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:31:00,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:31:00,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:31:00,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:31:00,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:31:00,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:31:00,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:31:00,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:31:00,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:31:00,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:31:00,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:31:00,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:31:00,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:31:00,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:31:00,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:31:00,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:31:00,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:31:00,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:31:00,685 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:31:00,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:31:00,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:31:00,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:31:00,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:31:00,687 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:31:00,688 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:31:00,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:31:00,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:31:00,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:31:00,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:31:00,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:31:00,690 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:31:00,690 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:31:00,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:31:00,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:31:00,692 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 08:31:00,705 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:31:00,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:31:00,706 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:31:00,706 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:31:00,706 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:31:00,707 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:31:00,707 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:31:00,707 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:31:00,707 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:31:00,707 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:31:00,707 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:31:00,707 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:31:00,707 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:31:00,708 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:31:00,708 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:31:00,708 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:31:00,708 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:31:00,708 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:31:00,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:31:00,709 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:31:00,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:31:00,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:31:00,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:31:00,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:31:00,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:31:00,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:31:00,710 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:31:00,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:31:00,710 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:31:00,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:31:00,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:31:00,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:31:00,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:31:00,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:31:00,711 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:31:00,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:31:00,711 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:31:00,711 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:31:00,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:31:00,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:31:00,711 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:31:00,712 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_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58fd69d2f74506159a7a57598b08a18ff098ebf1233f7e6688a335d4e30dd566 [2022-12-14 08:31:00,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:31:00,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:31:00,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:31:00,911 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:31:00,911 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:31:00,912 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec11_product18.cil.c [2022-12-14 08:31:03,454 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:31:03,705 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:31:03,705 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/sv-benchmarks/c/product-lines/email_spec11_product18.cil.c [2022-12-14 08:31:03,719 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/data/41fb7c891/a4c44b2e1f3d41b0b8f44a96ff4b91b2/FLAG1888ffc55 [2022-12-14 08:31:04,051 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/data/41fb7c891/a4c44b2e1f3d41b0b8f44a96ff4b91b2 [2022-12-14 08:31:04,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:31:04,058 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:31:04,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:31:04,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:31:04,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:31:04,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:31:04" (1/1) ... [2022-12-14 08:31:04,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48eac39b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:04, skipping insertion in model container [2022-12-14 08:31:04,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:31:04" (1/1) ... [2022-12-14 08:31:04,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:31:04,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:31:04,454 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:31:04,457 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:31:04,464 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:31:04,469 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/sv-benchmarks/c/product-lines/email_spec11_product18.cil.c[57905,57918] [2022-12-14 08:31:04,473 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:31:04,481 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:31:04,482 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:31:04,485 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:31:04,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:31:04,501 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:31:04,581 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:31:04,583 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:31:04,587 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:31:04,590 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/sv-benchmarks/c/product-lines/email_spec11_product18.cil.c[57905,57918] [2022-12-14 08:31:04,591 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:31:04,593 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:31:04,594 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:31:04,597 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:31:04,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:31:04,624 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:31:04,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:04 WrapperNode [2022-12-14 08:31:04,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:31:04,626 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:31:04,626 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:31:04,626 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:31:04,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:04" (1/1) ... [2022-12-14 08:31:04,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:04" (1/1) ... [2022-12-14 08:31:04,696 INFO L138 Inliner]: procedures = 127, calls = 198, calls flagged for inlining = 59, calls inlined = 50, statements flattened = 907 [2022-12-14 08:31:04,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:31:04,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:31:04,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:31:04,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:31:04,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:04" (1/1) ... [2022-12-14 08:31:04,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:04" (1/1) ... [2022-12-14 08:31:04,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:04" (1/1) ... [2022-12-14 08:31:04,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:04" (1/1) ... [2022-12-14 08:31:04,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:04" (1/1) ... [2022-12-14 08:31:04,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:04" (1/1) ... [2022-12-14 08:31:04,737 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:04" (1/1) ... [2022-12-14 08:31:04,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:04" (1/1) ... [2022-12-14 08:31:04,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:31:04,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:31:04,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:31:04,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:31:04,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:04" (1/1) ... [2022-12-14 08:31:04,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:31:04,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:31:04,777 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:31:04,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:31:04,809 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 08:31:04,809 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 08:31:04,809 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 08:31:04,809 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 08:31:04,809 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 08:31:04,810 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 08:31:04,810 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 08:31:04,810 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 08:31:04,810 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 08:31:04,810 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 08:31:04,810 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 08:31:04,810 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 08:31:04,810 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 08:31:04,811 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 08:31:04,811 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 08:31:04,811 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 08:31:04,811 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 08:31:04,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:31:04,811 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 08:31:04,811 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 08:31:04,811 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 08:31:04,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 08:31:04,812 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 08:31:04,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 08:31:04,812 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 08:31:04,812 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 08:31:04,812 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 08:31:04,812 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 08:31:04,812 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 08:31:04,813 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 08:31:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 08:31:04,813 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 08:31:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:31:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 08:31:04,813 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 08:31:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:31:04,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:31:04,965 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:31:04,968 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:31:05,437 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:31:05,699 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:31:05,699 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 08:31:05,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:31:05 BoogieIcfgContainer [2022-12-14 08:31:05,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:31:05,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:31:05,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:31:05,706 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:31:05,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:31:04" (1/3) ... [2022-12-14 08:31:05,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@540c5976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:31:05, skipping insertion in model container [2022-12-14 08:31:05,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:04" (2/3) ... [2022-12-14 08:31:05,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@540c5976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:31:05, skipping insertion in model container [2022-12-14 08:31:05,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:31:05" (3/3) ... [2022-12-14 08:31:05,709 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product18.cil.c [2022-12-14 08:31:05,725 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:31:05,725 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 08:31:05,769 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:31:05,774 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;@6f1eac0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:31:05,774 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 08:31:05,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 86 states have (on average 1.372093023255814) internal successors, (118), 88 states have internal predecessors, (118), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-12-14 08:31:05,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-12-14 08:31:05,789 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:31:05,789 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:31:05,790 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:31:05,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:31:05,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1019817916, now seen corresponding path program 1 times [2022-12-14 08:31:05,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:31:05,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643155102] [2022-12-14 08:31:05,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:05,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:31:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:06,012 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 08:31:06,012 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:31:06,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643155102] [2022-12-14 08:31:06,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643155102] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:31:06,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:31:06,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:31:06,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036221361] [2022-12-14 08:31:06,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:31:06,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:31:06,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:31:06,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:31:06,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:31:06,044 INFO L87 Difference]: Start difference. First operand has 142 states, 86 states have (on average 1.372093023255814) internal successors, (118), 88 states have internal predecessors, (118), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 08:31:06,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:31:06,133 INFO L93 Difference]: Finished difference Result 201 states and 266 transitions. [2022-12-14 08:31:06,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 08:31:06,135 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 60 [2022-12-14 08:31:06,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:31:06,143 INFO L225 Difference]: With dead ends: 201 [2022-12-14 08:31:06,143 INFO L226 Difference]: Without dead ends: 139 [2022-12-14 08:31:06,146 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 [2022-12-14 08:31:06,149 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:31:06,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:31:06,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-12-14 08:31:06,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2022-12-14 08:31:06,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 84 states have (on average 1.3333333333333333) internal successors, (112), 85 states have internal predecessors, (112), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-12-14 08:31:06,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 187 transitions. [2022-12-14 08:31:06,189 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 187 transitions. Word has length 60 [2022-12-14 08:31:06,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:31:06,190 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 187 transitions. [2022-12-14 08:31:06,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 08:31:06,191 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 187 transitions. [2022-12-14 08:31:06,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 08:31:06,192 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:31:06,193 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:31:06,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:31:06,193 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:31:06,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:31:06,193 INFO L85 PathProgramCache]: Analyzing trace with hash -2133393229, now seen corresponding path program 1 times [2022-12-14 08:31:06,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:31:06,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704085270] [2022-12-14 08:31:06,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:06,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:31:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:06,308 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 08:31:06,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:31:06,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704085270] [2022-12-14 08:31:06,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704085270] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:31:06,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:31:06,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:31:06,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222017985] [2022-12-14 08:31:06,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:31:06,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:31:06,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:31:06,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:31:06,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:31:06,311 INFO L87 Difference]: Start difference. First operand 139 states and 187 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 08:31:06,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:31:06,392 INFO L93 Difference]: Finished difference Result 197 states and 254 transitions. [2022-12-14 08:31:06,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:31:06,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2022-12-14 08:31:06,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:31:06,394 INFO L225 Difference]: With dead ends: 197 [2022-12-14 08:31:06,394 INFO L226 Difference]: Without dead ends: 141 [2022-12-14 08:31:06,395 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 [2022-12-14 08:31:06,395 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:31:06,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 321 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:31:06,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-12-14 08:31:06,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2022-12-14 08:31:06,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 86 states have (on average 1.3255813953488371) internal successors, (114), 87 states have internal predecessors, (114), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-12-14 08:31:06,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 189 transitions. [2022-12-14 08:31:06,406 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 189 transitions. Word has length 61 [2022-12-14 08:31:06,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:31:06,406 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 189 transitions. [2022-12-14 08:31:06,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 08:31:06,407 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 189 transitions. [2022-12-14 08:31:06,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 08:31:06,408 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:31:06,408 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] [2022-12-14 08:31:06,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:31:06,409 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:31:06,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:31:06,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1251651780, now seen corresponding path program 1 times [2022-12-14 08:31:06,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:31:06,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350369665] [2022-12-14 08:31:06,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:06,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:31:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:06,503 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 08:31:06,503 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:31:06,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350369665] [2022-12-14 08:31:06,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350369665] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:31:06,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:31:06,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:31:06,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898210055] [2022-12-14 08:31:06,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:31:06,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:31:06,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:31:06,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:31:06,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:31:06,505 INFO L87 Difference]: Start difference. First operand 141 states and 189 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 08:31:06,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:31:06,590 INFO L93 Difference]: Finished difference Result 312 states and 437 transitions. [2022-12-14 08:31:06,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:31:06,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 66 [2022-12-14 08:31:06,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:31:06,591 INFO L225 Difference]: With dead ends: 312 [2022-12-14 08:31:06,591 INFO L226 Difference]: Without dead ends: 189 [2022-12-14 08:31:06,592 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 [2022-12-14 08:31:06,593 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 57 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:31:06,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 336 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:31:06,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-12-14 08:31:06,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 184. [2022-12-14 08:31:06,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 118 states have (on average 1.4152542372881356) internal successors, (167), 119 states have internal predecessors, (167), 49 states have call successors, (49), 16 states have call predecessors, (49), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-12-14 08:31:06,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 264 transitions. [2022-12-14 08:31:06,607 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 264 transitions. Word has length 66 [2022-12-14 08:31:06,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:31:06,607 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 264 transitions. [2022-12-14 08:31:06,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 08:31:06,607 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 264 transitions. [2022-12-14 08:31:06,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 08:31:06,609 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:31:06,609 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] [2022-12-14 08:31:06,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 08:31:06,610 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:31:06,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:31:06,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1005884507, now seen corresponding path program 1 times [2022-12-14 08:31:06,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:31:06,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676101554] [2022-12-14 08:31:06,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:06,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:31:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:06,736 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 08:31:06,736 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:31:06,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676101554] [2022-12-14 08:31:06,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676101554] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:31:06,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017709078] [2022-12-14 08:31:06,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:06,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:31:06,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:31:06,738 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:31:06,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 08:31:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:06,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:31:06,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:31:06,982 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 08:31:06,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:31:07,038 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 08:31:07,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017709078] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:31:07,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1538343058] [2022-12-14 08:31:07,056 INFO L159 IcfgInterpreter]: Started Sifa with 54 locations of interest [2022-12-14 08:31:07,056 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:31:07,060 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:31:07,066 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:31:07,066 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:31:37,243 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 08:31:37,557 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 08:31:37,863 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:32:17,305 WARN L233 SmtUtils]: Spent 8.70s on a formula simplification. DAG size of input: 588 DAG size of output: 421 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:32:27,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1538343058] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:32:27,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:32:27,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 08:32:27,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085998586] [2022-12-14 08:32:27,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:32:27,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 08:32:27,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:32:27,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 08:32:27,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-12-14 08:32:27,659 INFO L87 Difference]: Start difference. First operand 184 states and 264 transitions. Second operand has 21 states, 16 states have (on average 2.125) internal successors, (34), 15 states have internal predecessors, (34), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-12-14 08:32:40,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:32:40,629 INFO L93 Difference]: Finished difference Result 451 states and 696 transitions. [2022-12-14 08:32:40,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 08:32:40,630 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.125) internal successors, (34), 15 states have internal predecessors, (34), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 67 [2022-12-14 08:32:40,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:32:40,632 INFO L225 Difference]: With dead ends: 451 [2022-12-14 08:32:40,632 INFO L226 Difference]: Without dead ends: 285 [2022-12-14 08:32:40,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 177 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 57.9s TimeCoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-12-14 08:32:40,634 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 166 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 1569 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 2171 SdHoareTripleChecker+Invalid, 1588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-12-14 08:32:40,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 2171 Invalid, 1588 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 1569 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-12-14 08:32:40,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-12-14 08:32:40,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 212. [2022-12-14 08:32:40,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 145 states have (on average 1.4206896551724137) internal successors, (206), 146 states have internal predecessors, (206), 49 states have call successors, (49), 17 states have call predecessors, (49), 17 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-12-14 08:32:40,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 303 transitions. [2022-12-14 08:32:40,726 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 303 transitions. Word has length 67 [2022-12-14 08:32:40,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:32:40,727 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 303 transitions. [2022-12-14 08:32:40,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.125) internal successors, (34), 15 states have internal predecessors, (34), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-12-14 08:32:40,727 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 303 transitions. [2022-12-14 08:32:40,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 08:32:40,730 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:32:40,731 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-12-14 08:32:40,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 08:32:40,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:32:40,933 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:32:40,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:32:40,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1512022016, now seen corresponding path program 1 times [2022-12-14 08:32:40,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:32:40,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118954808] [2022-12-14 08:32:40,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:32:40,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:32:40,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:32:41,059 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 08:32:41,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:32:41,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118954808] [2022-12-14 08:32:41,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118954808] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:32:41,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137723486] [2022-12-14 08:32:41,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:32:41,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:32:41,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:32:41,061 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:32:41,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 08:32:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:32:41,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:32:41,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:32:41,284 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 08:32:41,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:32:41,323 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 08:32:41,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137723486] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:32:41,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1461258468] [2022-12-14 08:32:41,328 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2022-12-14 08:32:41,328 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:32:41,328 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:32:41,329 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:32:41,329 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:33:20,253 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 08:33:20,568 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-12-14 08:33:20,881 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 252 for LOIs [2022-12-14 08:33:22,594 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 230 for LOIs [2022-12-14 08:33:22,632 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 254 for LOIs [2022-12-14 08:33:33,127 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 244 for LOIs [2022-12-14 08:33:33,161 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 244 for LOIs [2022-12-14 08:33:33,204 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 448 for LOIs [2022-12-14 08:33:33,854 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:34:17,619 WARN L233 SmtUtils]: Spent 11.18s on a formula simplification. DAG size of input: 591 DAG size of output: 458 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:34:25,326 WARN L233 SmtUtils]: Spent 7.44s on a formula simplification. DAG size of input: 593 DAG size of output: 336 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:35:07,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1461258468] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:35:07,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:35:07,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [4, 4, 4] total 52 [2022-12-14 08:35:07,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133583552] [2022-12-14 08:35:07,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:35:07,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-12-14 08:35:07,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:35:07,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-12-14 08:35:07,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=2510, Unknown=0, NotChecked=0, Total=2652 [2022-12-14 08:35:07,754 INFO L87 Difference]: Start difference. First operand 212 states and 303 transitions. Second operand has 47 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 15 states have call successors, (15), 8 states have call predecessors, (15), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 08:35:20,523 WARN L233 SmtUtils]: Spent 10.74s on a formula simplification. DAG size of input: 563 DAG size of output: 443 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:35:47,317 WARN L233 SmtUtils]: Spent 6.06s on a formula simplification. DAG size of input: 584 DAG size of output: 430 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:35:54,158 WARN L233 SmtUtils]: Spent 5.99s on a formula simplification. DAG size of input: 586 DAG size of output: 431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:36:01,167 WARN L233 SmtUtils]: Spent 6.64s on a formula simplification. DAG size of input: 594 DAG size of output: 432 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:36:13,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:36:13,615 INFO L93 Difference]: Finished difference Result 550 states and 838 transitions. [2022-12-14 08:36:13,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-14 08:36:13,616 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 15 states have call successors, (15), 8 states have call predecessors, (15), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 73 [2022-12-14 08:36:13,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:36:13,617 INFO L225 Difference]: With dead ends: 550 [2022-12-14 08:36:13,618 INFO L226 Difference]: Without dead ends: 384 [2022-12-14 08:36:13,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 765 ImplicationChecksByTransitivity, 142.9s TimeCoverageRelationStatistics Valid=211, Invalid=3695, Unknown=0, NotChecked=0, Total=3906 [2022-12-14 08:36:13,619 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 219 mSDsluCounter, 3628 mSDsCounter, 0 mSdLazyCounter, 5375 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 3806 SdHoareTripleChecker+Invalid, 5405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 5375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-12-14 08:36:13,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 3806 Invalid, 5405 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [30 Valid, 5375 Invalid, 0 Unknown, 0 Unchecked, 16.3s Time] [2022-12-14 08:36:13,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-12-14 08:36:13,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 310. [2022-12-14 08:36:13,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 226 states have (on average 1.4646017699115044) internal successors, (331), 229 states have internal predecessors, (331), 60 states have call successors, (60), 24 states have call predecessors, (60), 23 states have return successors, (60), 56 states have call predecessors, (60), 59 states have call successors, (60) [2022-12-14 08:36:13,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 451 transitions. [2022-12-14 08:36:13,816 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 451 transitions. Word has length 73 [2022-12-14 08:36:13,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:36:13,816 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 451 transitions. [2022-12-14 08:36:13,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 15 states have call successors, (15), 8 states have call predecessors, (15), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 08:36:13,817 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 451 transitions. [2022-12-14 08:36:13,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 08:36:13,818 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:36:13,818 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] [2022-12-14 08:36:13,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 08:36:14,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:36:14,020 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:36:14,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:36:14,022 INFO L85 PathProgramCache]: Analyzing trace with hash -539105792, now seen corresponding path program 1 times [2022-12-14 08:36:14,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:36:14,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546848347] [2022-12-14 08:36:14,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:36:14,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:36:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:36:14,189 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 08:36:14,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:36:14,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546848347] [2022-12-14 08:36:14,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546848347] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:36:14,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045871420] [2022-12-14 08:36:14,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:36:14,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:36:14,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:36:14,191 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:36:14,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 08:36:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:36:14,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:36:14,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:36:14,393 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 08:36:14,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:36:14,442 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 08:36:14,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045871420] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:36:14,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1998099920] [2022-12-14 08:36:14,445 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-12-14 08:36:14,446 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:36:14,446 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:36:14,446 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:36:14,446 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:37:52,009 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 08:37:52,317 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 418 for LOIs [2022-12-14 08:37:52,609 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 211 for LOIs [2022-12-14 08:37:52,668 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 08:37:52,976 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 415 for LOIs [2022-12-14 08:37:53,266 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 230 for LOIs [2022-12-14 08:37:54,966 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 208 for LOIs [2022-12-14 08:37:54,996 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 230 for LOIs [2022-12-14 08:38:03,799 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 222 for LOIs [2022-12-14 08:38:03,827 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 222 for LOIs [2022-12-14 08:38:03,863 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 392 for LOIs [2022-12-14 08:38:04,379 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:39:32,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1998099920] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:39:32,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:39:32,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [4, 4, 4] total 57 [2022-12-14 08:39:32,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061244752] [2022-12-14 08:39:32,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:39:32,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-12-14 08:39:32,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:39:32,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-12-14 08:39:32,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=3025, Unknown=0, NotChecked=0, Total=3192 [2022-12-14 08:39:32,617 INFO L87 Difference]: Start difference. First operand 310 states and 451 transitions. Second operand has 52 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 17 states have call successors, (17), 11 states have call predecessors, (17), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 08:40:00,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:40:00,815 INFO L93 Difference]: Finished difference Result 658 states and 982 transitions. [2022-12-14 08:40:00,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-14 08:40:00,816 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 17 states have call successors, (17), 11 states have call predecessors, (17), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 76 [2022-12-14 08:40:00,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:40:00,818 INFO L225 Difference]: With dead ends: 658 [2022-12-14 08:40:00,818 INFO L226 Difference]: Without dead ends: 492 [2022-12-14 08:40:00,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 785 ImplicationChecksByTransitivity, 97.9s TimeCoverageRelationStatistics Valid=201, Invalid=3581, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 08:40:00,819 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 258 mSDsluCounter, 4576 mSDsCounter, 0 mSdLazyCounter, 6824 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 4793 SdHoareTripleChecker+Invalid, 6857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 6824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2022-12-14 08:40:00,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 4793 Invalid, 6857 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [33 Valid, 6824 Invalid, 0 Unknown, 0 Unchecked, 17.8s Time] [2022-12-14 08:40:00,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-12-14 08:40:01,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 350. [2022-12-14 08:40:01,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 259 states have (on average 1.4633204633204633) internal successors, (379), 263 states have internal predecessors, (379), 64 states have call successors, (64), 27 states have call predecessors, (64), 26 states have return successors, (64), 59 states have call predecessors, (64), 63 states have call successors, (64) [2022-12-14 08:40:01,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 507 transitions. [2022-12-14 08:40:01,080 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 507 transitions. Word has length 76 [2022-12-14 08:40:01,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:40:01,080 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 507 transitions. [2022-12-14 08:40:01,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 17 states have call successors, (17), 11 states have call predecessors, (17), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 08:40:01,081 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 507 transitions. [2022-12-14 08:40:01,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 08:40:01,082 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:40:01,082 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:40:01,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 08:40:01,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 08:40:01,283 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:40:01,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:40:01,285 INFO L85 PathProgramCache]: Analyzing trace with hash 179877456, now seen corresponding path program 1 times [2022-12-14 08:40:01,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:40:01,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031045481] [2022-12-14 08:40:01,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:40:01,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:40:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:40:01,431 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-14 08:40:01,431 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:40:01,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031045481] [2022-12-14 08:40:01,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031045481] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:40:01,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279544820] [2022-12-14 08:40:01,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:40:01,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:40:01,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:40:01,432 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:40:01,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 08:40:01,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:40:01,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 1056 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 08:40:01,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:40:01,650 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 08:40:01,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:40:01,715 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 08:40:01,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279544820] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:40:01,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1460600859] [2022-12-14 08:40:01,718 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2022-12-14 08:40:01,718 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:40:01,719 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:40:01,719 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:40:01,719 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:40:56,925 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 08:40:57,233 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 450 for LOIs [2022-12-14 08:40:57,544 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 255 for LOIs [2022-12-14 08:40:59,182 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 233 for LOIs [2022-12-14 08:40:59,221 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 255 for LOIs [2022-12-14 08:41:10,011 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 247 for LOIs [2022-12-14 08:41:10,067 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 247 for LOIs [2022-12-14 08:41:10,110 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 445 for LOIs [2022-12-14 08:41:10,789 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:41:50,931 WARN L233 SmtUtils]: Spent 6.69s on a formula simplification. DAG size of input: 598 DAG size of output: 348 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:41:58,653 WARN L233 SmtUtils]: Spent 7.36s on a formula simplification. DAG size of input: 600 DAG size of output: 350 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:42:38,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1460600859] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:42:38,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:42:38,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [6, 5, 5] total 55 [2022-12-14 08:42:38,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064701887] [2022-12-14 08:42:38,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:42:38,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-12-14 08:42:38,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:42:38,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-12-14 08:42:38,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=2800, Unknown=0, NotChecked=0, Total=2970 [2022-12-14 08:42:38,683 INFO L87 Difference]: Start difference. First operand 350 states and 507 transitions. Second operand has 47 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 29 states have internal predecessors, (38), 15 states have call successors, (15), 8 states have call predecessors, (15), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 08:43:12,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:43:12,572 INFO L93 Difference]: Finished difference Result 754 states and 1140 transitions. [2022-12-14 08:43:12,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-12-14 08:43:12,573 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 29 states have internal predecessors, (38), 15 states have call successors, (15), 8 states have call predecessors, (15), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 78 [2022-12-14 08:43:12,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:43:12,576 INFO L225 Difference]: With dead ends: 754 [2022-12-14 08:43:12,576 INFO L226 Difference]: Without dead ends: 588 [2022-12-14 08:43:12,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 184 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 104.0s TimeCoverageRelationStatistics Valid=223, Invalid=3437, Unknown=0, NotChecked=0, Total=3660 [2022-12-14 08:43:12,578 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 315 mSDsluCounter, 4432 mSDsCounter, 0 mSdLazyCounter, 5753 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 4673 SdHoareTripleChecker+Invalid, 5788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 5753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2022-12-14 08:43:12,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 4673 Invalid, 5788 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 5753 Invalid, 0 Unknown, 0 Unchecked, 16.9s Time] [2022-12-14 08:43:12,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2022-12-14 08:43:12,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 380. [2022-12-14 08:43:12,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 284 states have (on average 1.4929577464788732) internal successors, (424), 290 states have internal predecessors, (424), 67 states have call successors, (67), 29 states have call predecessors, (67), 28 states have return successors, (67), 60 states have call predecessors, (67), 66 states have call successors, (67) [2022-12-14 08:43:12,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 558 transitions. [2022-12-14 08:43:12,933 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 558 transitions. Word has length 78 [2022-12-14 08:43:12,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:43:12,933 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 558 transitions. [2022-12-14 08:43:12,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 29 states have internal predecessors, (38), 15 states have call successors, (15), 8 states have call predecessors, (15), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 08:43:12,933 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 558 transitions. [2022-12-14 08:43:12,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 08:43:12,934 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:43:12,934 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-12-14 08:43:12,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 08:43:13,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 08:43:13,136 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:43:13,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:43:13,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1213575061, now seen corresponding path program 1 times [2022-12-14 08:43:13,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:43:13,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72708167] [2022-12-14 08:43:13,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:43:13,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:43:13,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:43:13,227 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 08:43:13,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:43:13,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72708167] [2022-12-14 08:43:13,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72708167] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:43:13,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446417927] [2022-12-14 08:43:13,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:43:13,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:43:13,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:43:13,229 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:43:13,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36e4c8ed-2ca1-482b-ae14-1b50826ef427/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 08:43:13,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:43:13,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:43:13,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:43:13,438 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 08:43:13,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:43:13,468 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 08:43:13,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446417927] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:43:13,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1772988138] [2022-12-14 08:43:13,470 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-12-14 08:43:13,470 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:43:13,471 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:43:13,471 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:43:13,471 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:43:52,483 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 08:43:52,794 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-12-14 08:43:53,108 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 252 for LOIs [2022-12-14 08:43:54,719 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 230 for LOIs [2022-12-14 08:43:54,757 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 254 for LOIs [2022-12-14 08:44:08,676 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 244 for LOIs [2022-12-14 08:44:08,710 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 244 for LOIs [2022-12-14 08:44:08,750 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 448 for LOIs [2022-12-14 08:44:09,446 INFO L197 IcfgInterpreter]: Interpreting procedure isSigned with input of size 244 for LOIs [2022-12-14 08:44:09,487 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:44:54,467 WARN L233 SmtUtils]: Spent 12.75s on a formula simplification. DAG size of input: 591 DAG size of output: 458 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:45:02,428 WARN L233 SmtUtils]: Spent 7.63s on a formula simplification. DAG size of input: 593 DAG size of output: 336 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)