./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/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_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product20.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/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_e5fe0cbf-a824-4958-a737-a1e9997766de/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 d4216ddf014ff953368f9c10444517e5ad475a960f2c91abb81cda95e6b2b3bf --- 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 15:39:46,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:39:46,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:39:46,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:39:46,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:39:46,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:39:46,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:39:46,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:39:46,831 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:39:46,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:39:46,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:39:46,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:39:46,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:39:46,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:39:46,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:39:46,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:39:46,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:39:46,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:39:46,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:39:46,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:39:46,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:39:46,841 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:39:46,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:39:46,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:39:46,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:39:46,845 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:39:46,845 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:39:46,846 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:39:46,846 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:39:46,847 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:39:46,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:39:46,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:39:46,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:39:46,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:39:46,849 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:39:46,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:39:46,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:39:46,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:39:46,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:39:46,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:39:46,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:39:46,852 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 15:39:46,866 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:39:46,867 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:39:46,867 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:39:46,867 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:39:46,867 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:39:46,867 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:39:46,868 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:39:46,868 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:39:46,868 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:39:46,868 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:39:46,868 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:39:46,868 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:39:46,868 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:39:46,868 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:39:46,869 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:39:46,869 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:39:46,869 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:39:46,869 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:39:46,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:39:46,874 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:39:46,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:39:46,874 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:39:46,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:39:46,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:39:46,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:39:46,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:39:46,875 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:39:46,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:39:46,875 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:39:46,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:39:46,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:39:46,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:39:46,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:39:46,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:39:46,876 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:39:46,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:39:46,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:39:46,877 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:39:46,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:39:46,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:39:46,877 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:39:46,877 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_e5fe0cbf-a824-4958-a737-a1e9997766de/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4216ddf014ff953368f9c10444517e5ad475a960f2c91abb81cda95e6b2b3bf [2022-12-14 15:39:47,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:39:47,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:39:47,050 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:39:47,051 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:39:47,052 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:39:47,052 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec6_product20.cil.c [2022-12-14 15:39:49,636 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:39:49,839 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:39:49,839 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/sv-benchmarks/c/product-lines/email_spec6_product20.cil.c [2022-12-14 15:39:49,851 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/data/b047eff87/0f2fefd2c9854542a84dd9e2f5569a84/FLAGd0c75a4cd [2022-12-14 15:39:50,201 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/data/b047eff87/0f2fefd2c9854542a84dd9e2f5569a84 [2022-12-14 15:39:50,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:39:50,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:39:50,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:39:50,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:39:50,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:39:50,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:39:50" (1/1) ... [2022-12-14 15:39:50,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3772be1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:39:50, skipping insertion in model container [2022-12-14 15:39:50,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:39:50" (1/1) ... [2022-12-14 15:39:50,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:39:50,281 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:39:50,578 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:39:50,581 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:39:50,596 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:39:50,597 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:39:50,600 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:39:50,604 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_e5fe0cbf-a824-4958-a737-a1e9997766de/sv-benchmarks/c/product-lines/email_spec6_product20.cil.c[56376,56389] [2022-12-14 15:39:50,614 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:39:50,618 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:39:50,618 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:39:50,619 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:39:50,626 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:39:50,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:39:50,648 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:39:50,706 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:39:50,707 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:39:50,709 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:39:50,710 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:39:50,712 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:39:50,714 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_e5fe0cbf-a824-4958-a737-a1e9997766de/sv-benchmarks/c/product-lines/email_spec6_product20.cil.c[56376,56389] [2022-12-14 15:39:50,715 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:39:50,717 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:39:50,717 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:39:50,718 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:39:50,722 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:39:50,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:39:50,786 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:39:50,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:39:50 WrapperNode [2022-12-14 15:39:50,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:39:50,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:39:50,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:39:50,788 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:39:50,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:39:50" (1/1) ... [2022-12-14 15:39:50,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:39:50" (1/1) ... [2022-12-14 15:39:50,855 INFO L138 Inliner]: procedures = 129, calls = 222, calls flagged for inlining = 54, calls inlined = 47, statements flattened = 942 [2022-12-14 15:39:50,855 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:39:50,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:39:50,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:39:50,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:39:50,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:39:50" (1/1) ... [2022-12-14 15:39:50,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:39:50" (1/1) ... [2022-12-14 15:39:50,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:39:50" (1/1) ... [2022-12-14 15:39:50,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:39:50" (1/1) ... [2022-12-14 15:39:50,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:39:50" (1/1) ... [2022-12-14 15:39:50,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:39:50" (1/1) ... [2022-12-14 15:39:50,897 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:39:50" (1/1) ... [2022-12-14 15:39:50,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:39:50" (1/1) ... [2022-12-14 15:39:50,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:39:50,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:39:50,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:39:50,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:39:50,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:39:50" (1/1) ... [2022-12-14 15:39:50,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:39:50,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:39:50,940 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:39:50,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:39:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 15:39:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 15:39:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 15:39:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 15:39:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 15:39:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 15:39:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 15:39:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 15:39:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 15:39:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 15:39:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 15:39:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 15:39:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-14 15:39:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-14 15:39:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 15:39:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 15:39:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 15:39:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 15:39:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 15:39:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 15:39:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 15:39:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 15:39:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 15:39:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 15:39:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 15:39:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 15:39:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 15:39:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:39:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 15:39:50,979 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 15:39:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 15:39:50,979 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 15:39:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 15:39:50,979 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 15:39:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 15:39:50,979 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 15:39:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 15:39:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 15:39:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 15:39:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 15:39:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 15:39:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 15:39:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 15:39:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 15:39:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 15:39:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 15:39:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:39:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 15:39:50,981 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 15:39:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 15:39:50,981 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 15:39:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:39:50,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:39:51,127 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:39:51,129 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:39:51,714 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:39:52,015 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:39:52,015 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 15:39:52,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:39:52 BoogieIcfgContainer [2022-12-14 15:39:52,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:39:52,019 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:39:52,019 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:39:52,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:39:52,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:39:50" (1/3) ... [2022-12-14 15:39:52,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac0066d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:39:52, skipping insertion in model container [2022-12-14 15:39:52,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:39:50" (2/3) ... [2022-12-14 15:39:52,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac0066d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:39:52, skipping insertion in model container [2022-12-14 15:39:52,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:39:52" (3/3) ... [2022-12-14 15:39:52,023 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product20.cil.c [2022-12-14 15:39:52,039 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:39:52,039 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 15:39:52,091 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:39:52,096 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;@2cd59bc1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:39:52,096 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 15:39:52,100 INFO L276 IsEmpty]: Start isEmpty. Operand has 193 states, 109 states have (on average 1.3211009174311927) internal successors, (144), 114 states have internal predecessors, (144), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2022-12-14 15:39:52,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 15:39:52,110 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:39:52,111 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:39:52,111 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:39:52,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:39:52,115 INFO L85 PathProgramCache]: Analyzing trace with hash -166593916, now seen corresponding path program 1 times [2022-12-14 15:39:52,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:39:52,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632429302] [2022-12-14 15:39:52,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:39:52,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:39:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:39:52,360 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 15:39:52,360 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:39:52,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632429302] [2022-12-14 15:39:52,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632429302] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:39:52,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:39:52,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:39:52,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022773903] [2022-12-14 15:39:52,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:39:52,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 15:39:52,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:39:52,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 15:39:52,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 15:39:52,389 INFO L87 Difference]: Start difference. First operand has 193 states, 109 states have (on average 1.3211009174311927) internal successors, (144), 114 states have internal predecessors, (144), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 15:39:52,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:39:52,510 INFO L93 Difference]: Finished difference Result 294 states and 391 transitions. [2022-12-14 15:39:52,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 15:39:52,512 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 79 [2022-12-14 15:39:52,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:39:52,519 INFO L225 Difference]: With dead ends: 294 [2022-12-14 15:39:52,519 INFO L226 Difference]: Without dead ends: 190 [2022-12-14 15:39:52,522 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 15:39:52,524 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:39:52,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 221 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:39:52,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-12-14 15:39:52,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2022-12-14 15:39:52,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 107 states have (on average 1.2897196261682242) internal successors, (138), 111 states have internal predecessors, (138), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-12-14 15:39:52,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 253 transitions. [2022-12-14 15:39:52,563 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 253 transitions. Word has length 79 [2022-12-14 15:39:52,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:39:52,564 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 253 transitions. [2022-12-14 15:39:52,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 15:39:52,565 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 253 transitions. [2022-12-14 15:39:52,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-14 15:39:52,567 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:39:52,567 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:39:52,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:39:52,568 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:39:52,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:39:52,568 INFO L85 PathProgramCache]: Analyzing trace with hash -800055289, now seen corresponding path program 1 times [2022-12-14 15:39:52,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:39:52,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861412593] [2022-12-14 15:39:52,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:39:52,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:39:52,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:39:52,697 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 15:39:52,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:39:52,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861412593] [2022-12-14 15:39:52,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861412593] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:39:52,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:39:52,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:39:52,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374233257] [2022-12-14 15:39:52,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:39:52,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:39:52,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:39:52,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:39:52,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:39:52,701 INFO L87 Difference]: Start difference. First operand 190 states and 253 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 15:39:52,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:39:52,810 INFO L93 Difference]: Finished difference Result 290 states and 376 transitions. [2022-12-14 15:39:52,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:39:52,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 80 [2022-12-14 15:39:52,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:39:52,813 INFO L225 Difference]: With dead ends: 290 [2022-12-14 15:39:52,813 INFO L226 Difference]: Without dead ends: 192 [2022-12-14 15:39:52,814 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 15:39:52,816 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 0 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:39:52,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 435 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:39:52,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-12-14 15:39:52,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2022-12-14 15:39:52,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 109 states have (on average 1.2844036697247707) internal successors, (140), 113 states have internal predecessors, (140), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-12-14 15:39:52,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 255 transitions. [2022-12-14 15:39:52,838 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 255 transitions. Word has length 80 [2022-12-14 15:39:52,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:39:52,838 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 255 transitions. [2022-12-14 15:39:52,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 15:39:52,839 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 255 transitions. [2022-12-14 15:39:52,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 15:39:52,842 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:39:52,842 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:39:52,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:39:52,843 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:39:52,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:39:52,843 INFO L85 PathProgramCache]: Analyzing trace with hash 230554229, now seen corresponding path program 1 times [2022-12-14 15:39:52,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:39:52,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926724535] [2022-12-14 15:39:52,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:39:52,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:39:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:39:52,941 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 15:39:52,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:39:52,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926724535] [2022-12-14 15:39:52,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926724535] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:39:52,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:39:52,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:39:52,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039886159] [2022-12-14 15:39:52,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:39:52,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:39:52,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:39:52,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:39:52,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:39:52,943 INFO L87 Difference]: Start difference. First operand 192 states and 255 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 15:39:53,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:39:53,037 INFO L93 Difference]: Finished difference Result 419 states and 577 transitions. [2022-12-14 15:39:53,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:39:53,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 85 [2022-12-14 15:39:53,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:39:53,040 INFO L225 Difference]: With dead ends: 419 [2022-12-14 15:39:53,040 INFO L226 Difference]: Without dead ends: 245 [2022-12-14 15:39:53,041 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 15:39:53,042 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 59 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:39:53,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 448 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:39:53,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2022-12-14 15:39:53,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 240. [2022-12-14 15:39:53,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 143 states have (on average 1.3636363636363635) internal successors, (195), 147 states have internal predecessors, (195), 72 states have call successors, (72), 24 states have call predecessors, (72), 24 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2022-12-14 15:39:53,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 338 transitions. [2022-12-14 15:39:53,066 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 338 transitions. Word has length 85 [2022-12-14 15:39:53,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:39:53,066 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 338 transitions. [2022-12-14 15:39:53,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 15:39:53,066 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 338 transitions. [2022-12-14 15:39:53,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 15:39:53,069 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:39:53,069 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:39:53,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 15:39:53,070 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:39:53,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:39:53,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1853724640, now seen corresponding path program 1 times [2022-12-14 15:39:53,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:39:53,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383521536] [2022-12-14 15:39:53,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:39:53,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:39:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:39:53,246 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 15:39:53,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:39:53,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383521536] [2022-12-14 15:39:53,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383521536] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:39:53,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880259108] [2022-12-14 15:39:53,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:39:53,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:39:53,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:39:53,248 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:39:53,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:39:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:39:53,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:39:53,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:39:53,532 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 15:39:53,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:39:53,597 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 15:39:53,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880259108] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:39:53,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1657076289] [2022-12-14 15:39:53,614 INFO L159 IcfgInterpreter]: Started Sifa with 73 locations of interest [2022-12-14 15:39:53,614 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:39:53,617 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:39:53,621 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:39:53,621 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:40:20,695 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 448 for LOIs [2022-12-14 15:40:20,993 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 259 for LOIs [2022-12-14 15:40:22,561 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 239 for LOIs [2022-12-14 15:40:22,597 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 15:40:22,876 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 261 for LOIs [2022-12-14 15:40:23,537 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 268 for LOIs [2022-12-14 15:40:32,358 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 242 for LOIs [2022-12-14 15:40:32,394 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 473 for LOIs [2022-12-14 15:40:35,783 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 246 for LOIs [2022-12-14 15:40:35,834 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 231 for LOIs [2022-12-14 15:40:35,869 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:41:19,421 WARN L233 SmtUtils]: Spent 12.61s on a formula simplification. DAG size of input: 596 DAG size of output: 468 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:41:31,911 WARN L233 SmtUtils]: Spent 5.19s on a formula simplification. DAG size of input: 569 DAG size of output: 393 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:42:26,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1657076289] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:42:26,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:42:26,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [4, 4, 4] total 58 [2022-12-14 15:42:26,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134013593] [2022-12-14 15:42:26,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:42:26,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-12-14 15:42:26,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:42:26,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-12-14 15:42:26,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=3154, Unknown=0, NotChecked=0, Total=3306 [2022-12-14 15:42:26,307 INFO L87 Difference]: Start difference. First operand 240 states and 338 transitions. Second operand has 53 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 32 states have internal predecessors, (44), 17 states have call successors, (19), 11 states have call predecessors, (19), 8 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2022-12-14 15:42:50,374 WARN L233 SmtUtils]: Spent 6.68s on a formula simplification. DAG size of input: 522 DAG size of output: 450 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:42:58,616 WARN L233 SmtUtils]: Spent 7.12s on a formula simplification. DAG size of input: 594 DAG size of output: 434 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:43:25,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:43:25,311 INFO L93 Difference]: Finished difference Result 677 states and 1043 transitions. [2022-12-14 15:43:25,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-14 15:43:25,312 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 32 states have internal predecessors, (44), 17 states have call successors, (19), 11 states have call predecessors, (19), 8 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) Word has length 86 [2022-12-14 15:43:25,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:43:25,314 INFO L225 Difference]: With dead ends: 677 [2022-12-14 15:43:25,314 INFO L226 Difference]: Without dead ends: 455 [2022-12-14 15:43:25,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 202 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1065 ImplicationChecksByTransitivity, 145.7s TimeCoverageRelationStatistics Valid=238, Invalid=4592, Unknown=0, NotChecked=0, Total=4830 [2022-12-14 15:43:25,317 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 293 mSDsluCounter, 6243 mSDsCounter, 0 mSdLazyCounter, 8058 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 6529 SdHoareTripleChecker+Invalid, 8091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 8058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:43:25,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 6529 Invalid, 8091 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [33 Valid, 8058 Invalid, 0 Unknown, 0 Unchecked, 23.1s Time] [2022-12-14 15:43:25,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-12-14 15:43:25,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 351. [2022-12-14 15:43:25,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 233 states have (on average 1.4163090128755365) internal successors, (330), 238 states have internal predecessors, (330), 86 states have call successors, (86), 33 states have call predecessors, (86), 31 states have return successors, (86), 81 states have call predecessors, (86), 85 states have call successors, (86) [2022-12-14 15:43:25,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 502 transitions. [2022-12-14 15:43:25,464 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 502 transitions. Word has length 86 [2022-12-14 15:43:25,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:43:25,464 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 502 transitions. [2022-12-14 15:43:25,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 32 states have internal predecessors, (44), 17 states have call successors, (19), 11 states have call predecessors, (19), 8 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2022-12-14 15:43:25,465 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 502 transitions. [2022-12-14 15:43:25,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-14 15:43:25,466 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:43:25,466 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:43:25,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:43:25,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:43:25,669 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:43:25,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:43:25,670 INFO L85 PathProgramCache]: Analyzing trace with hash -619845671, now seen corresponding path program 1 times [2022-12-14 15:43:25,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:43:25,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406219371] [2022-12-14 15:43:25,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:43:25,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:43:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:43:25,751 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 15:43:25,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:43:25,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406219371] [2022-12-14 15:43:25,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406219371] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:43:25,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:43:25,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:43:25,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143042868] [2022-12-14 15:43:25,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:43:25,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:43:25,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:43:25,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:43:25,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:43:25,754 INFO L87 Difference]: Start difference. First operand 351 states and 502 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 15:43:26,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:43:26,103 INFO L93 Difference]: Finished difference Result 789 states and 1160 transitions. [2022-12-14 15:43:26,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:43:26,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 91 [2022-12-14 15:43:26,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:43:26,107 INFO L225 Difference]: With dead ends: 789 [2022-12-14 15:43:26,107 INFO L226 Difference]: Without dead ends: 476 [2022-12-14 15:43:26,108 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 15:43:26,108 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 57 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:43:26,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 462 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:43:26,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-12-14 15:43:26,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 469. [2022-12-14 15:43:26,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 320 states have (on average 1.45) internal successors, (464), 325 states have internal predecessors, (464), 117 states have call successors, (117), 33 states have call predecessors, (117), 31 states have return successors, (117), 112 states have call predecessors, (117), 116 states have call successors, (117) [2022-12-14 15:43:26,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 698 transitions. [2022-12-14 15:43:26,302 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 698 transitions. Word has length 91 [2022-12-14 15:43:26,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:43:26,302 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 698 transitions. [2022-12-14 15:43:26,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 15:43:26,302 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 698 transitions. [2022-12-14 15:43:26,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-14 15:43:26,304 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:43:26,304 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:43:26,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 15:43:26,304 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:43:26,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:43:26,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1368261767, now seen corresponding path program 1 times [2022-12-14 15:43:26,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:43:26,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105046134] [2022-12-14 15:43:26,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:43:26,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:43:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:43:26,418 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 15:43:26,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:43:26,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105046134] [2022-12-14 15:43:26,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105046134] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:43:26,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467348391] [2022-12-14 15:43:26,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:43:26,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:43:26,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:43:26,420 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:43:26,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 15:43:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:43:26,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:43:26,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:43:26,661 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 15:43:26,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:43:26,709 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 15:43:26,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467348391] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:43:26,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [8354249] [2022-12-14 15:43:26,713 INFO L159 IcfgInterpreter]: Started Sifa with 77 locations of interest [2022-12-14 15:43:26,713 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:43:26,714 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:43:26,714 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:43:26,714 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:43:58,058 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 448 for LOIs [2022-12-14 15:43:58,343 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 15:43:58,618 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:44:40,158 WARN L233 SmtUtils]: Spent 9.02s on a formula simplification. DAG size of input: 583 DAG size of output: 429 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:44:53,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [8354249] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:44:53,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:44:53,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 15:44:53,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665493885] [2022-12-14 15:44:53,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:44:53,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 15:44:53,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:44:53,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 15:44:53,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-12-14 15:44:53,361 INFO L87 Difference]: Start difference. First operand 469 states and 698 transitions. Second operand has 25 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 8 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2022-12-14 15:45:00,978 WARN L233 SmtUtils]: Spent 6.57s on a formula simplification. DAG size of input: 511 DAG size of output: 428 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:45:14,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:45:14,726 INFO L93 Difference]: Finished difference Result 905 states and 1392 transitions. [2022-12-14 15:45:14,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 15:45:14,727 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 8 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) Word has length 92 [2022-12-14 15:45:14,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:45:14,729 INFO L225 Difference]: With dead ends: 905 [2022-12-14 15:45:14,729 INFO L226 Difference]: Without dead ends: 583 [2022-12-14 15:45:14,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 69.4s TimeCoverageRelationStatistics Valid=169, Invalid=1091, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 15:45:14,730 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 205 mSDsluCounter, 3189 mSDsCounter, 0 mSdLazyCounter, 2207 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 3416 SdHoareTripleChecker+Invalid, 2216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:45:14,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 3416 Invalid, 2216 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2207 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-12-14 15:45:14,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2022-12-14 15:45:14,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 517. [2022-12-14 15:45:14,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 365 states have (on average 1.463013698630137) internal successors, (534), 371 states have internal predecessors, (534), 119 states have call successors, (119), 34 states have call predecessors, (119), 32 states have return successors, (119), 113 states have call predecessors, (119), 118 states have call successors, (119) [2022-12-14 15:45:14,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 772 transitions. [2022-12-14 15:45:14,993 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 772 transitions. Word has length 92 [2022-12-14 15:45:14,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:45:14,993 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 772 transitions. [2022-12-14 15:45:14,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 8 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2022-12-14 15:45:14,994 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 772 transitions. [2022-12-14 15:45:14,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 15:45:14,995 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:45:14,995 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:45:15,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 15:45:15,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:45:15,197 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:45:15,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:45:15,198 INFO L85 PathProgramCache]: Analyzing trace with hash 2070736109, now seen corresponding path program 1 times [2022-12-14 15:45:15,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:45:15,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999389945] [2022-12-14 15:45:15,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:45:15,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:45:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:45:15,323 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 15:45:15,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:45:15,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999389945] [2022-12-14 15:45:15,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999389945] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:45:15,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665210246] [2022-12-14 15:45:15,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:45:15,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:45:15,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:45:15,325 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:45:15,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 15:45:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:45:15,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:45:15,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:45:15,573 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 15:45:15,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:45:15,612 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 15:45:15,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665210246] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:45:15,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2043820505] [2022-12-14 15:45:15,614 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2022-12-14 15:45:15,614 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:45:15,615 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:45:15,615 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:45:15,615 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:46:40,542 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 15:46:40,817 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 422 for LOIs [2022-12-14 15:46:41,081 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 419 for LOIs [2022-12-14 15:46:41,347 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 232 for LOIs [2022-12-14 15:46:42,531 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 215 for LOIs [2022-12-14 15:46:42,586 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 212 for LOIs [2022-12-14 15:46:42,617 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 15:46:42,898 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 232 for LOIs [2022-12-14 15:46:43,433 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 241 for LOIs [2022-12-14 15:46:50,293 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 389 for LOIs [2022-12-14 15:46:50,703 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 221 for LOIs [2022-12-14 15:46:50,792 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 219 for LOIs [2022-12-14 15:46:50,822 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 204 for LOIs [2022-12-14 15:46:50,850 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:47:27,552 WARN L233 SmtUtils]: Spent 5.17s on a formula simplification. DAG size of input: 532 DAG size of output: 410 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:48:30,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2043820505] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:48:30,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:48:30,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [4, 4, 4] total 68 [2022-12-14 15:48:30,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472484526] [2022-12-14 15:48:30,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:48:30,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-12-14 15:48:30,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:48:30,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-12-14 15:48:30,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=4365, Unknown=0, NotChecked=0, Total=4556 [2022-12-14 15:48:30,756 INFO L87 Difference]: Start difference. First operand 517 states and 772 transitions. Second operand has 63 states, 39 states have (on average 1.205128205128205) internal successors, (47), 36 states have internal predecessors, (47), 20 states have call successors, (22), 14 states have call predecessors, (22), 11 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) [2022-12-14 15:49:27,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:49:27,200 INFO L93 Difference]: Finished difference Result 1058 states and 1603 transitions. [2022-12-14 15:49:27,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-12-14 15:49:27,201 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 39 states have (on average 1.205128205128205) internal successors, (47), 36 states have internal predecessors, (47), 20 states have call successors, (22), 14 states have call predecessors, (22), 11 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) Word has length 95 [2022-12-14 15:49:27,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:49:27,203 INFO L225 Difference]: With dead ends: 1058 [2022-12-14 15:49:27,203 INFO L226 Difference]: Without dead ends: 736 [2022-12-14 15:49:27,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 220 SyntacticMatches, 1 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1499 ImplicationChecksByTransitivity, 128.6s TimeCoverageRelationStatistics Valid=324, Invalid=6648, Unknown=0, NotChecked=0, Total=6972 [2022-12-14 15:49:27,205 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 326 mSDsluCounter, 7253 mSDsCounter, 0 mSdLazyCounter, 10160 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 7541 SdHoareTripleChecker+Invalid, 10210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 10160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time [2022-12-14 15:49:27,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 7541 Invalid, 10210 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [50 Valid, 10160 Invalid, 0 Unknown, 0 Unchecked, 26.9s Time] [2022-12-14 15:49:27,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2022-12-14 15:49:27,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 623. [2022-12-14 15:49:27,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 444 states have (on average 1.4436936936936937) internal successors, (641), 452 states have internal predecessors, (641), 137 states have call successors, (137), 45 states have call predecessors, (137), 41 states have return successors, (138), 127 states have call predecessors, (138), 136 states have call successors, (138) [2022-12-14 15:49:27,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 916 transitions. [2022-12-14 15:49:27,563 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 916 transitions. Word has length 95 [2022-12-14 15:49:27,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:49:27,563 INFO L495 AbstractCegarLoop]: Abstraction has 623 states and 916 transitions. [2022-12-14 15:49:27,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 39 states have (on average 1.205128205128205) internal successors, (47), 36 states have internal predecessors, (47), 20 states have call successors, (22), 14 states have call predecessors, (22), 11 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) [2022-12-14 15:49:27,564 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 916 transitions. [2022-12-14 15:49:27,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-14 15:49:27,565 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:49:27,565 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:49:27,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 15:49:27,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 15:49:27,767 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:49:27,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:49:27,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1472905632, now seen corresponding path program 1 times [2022-12-14 15:49:27,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:49:27,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800220334] [2022-12-14 15:49:27,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:49:27,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:49:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:49:27,900 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 15:49:27,900 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:49:27,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800220334] [2022-12-14 15:49:27,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800220334] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:49:27,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800357875] [2022-12-14 15:49:27,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:49:27,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:49:27,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:49:27,901 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:49:27,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 15:49:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:49:28,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 1141 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 15:49:28,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:49:28,135 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 15:49:28,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:49:28,189 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 15:49:28,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800357875] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:49:28,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [590092155] [2022-12-14 15:49:28,193 INFO L159 IcfgInterpreter]: Started Sifa with 77 locations of interest [2022-12-14 15:49:28,193 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:49:28,193 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:49:28,193 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:49:28,193 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:50:14,697 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 15:50:14,971 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 256 for LOIs [2022-12-14 15:50:16,437 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 236 for LOIs [2022-12-14 15:50:16,473 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 453 for LOIs [2022-12-14 15:50:16,760 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 256 for LOIs [2022-12-14 15:50:17,394 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 265 for LOIs [2022-12-14 15:50:23,751 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 437 for LOIs [2022-12-14 15:50:24,312 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 468 for LOIs [2022-12-14 15:50:28,665 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 243 for LOIs [2022-12-14 15:50:28,702 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 226 for LOIs [2022-12-14 15:50:28,736 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:52:07,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [590092155] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:52:07,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:52:07,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [5, 5, 5] total 62 [2022-12-14 15:52:07,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124618155] [2022-12-14 15:52:07,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:52:07,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-12-14 15:52:07,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:52:07,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-12-14 15:52:07,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=3592, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 15:52:07,936 INFO L87 Difference]: Start difference. First operand 623 states and 916 transitions. Second operand has 57 states, 38 states have (on average 1.263157894736842) internal successors, (48), 35 states have internal predecessors, (48), 18 states have call successors, (20), 11 states have call predecessors, (20), 8 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2022-12-14 15:52:48,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:52:48,812 INFO L93 Difference]: Finished difference Result 1143 states and 1738 transitions. [2022-12-14 15:52:48,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-12-14 15:52:48,813 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 38 states have (on average 1.263157894736842) internal successors, (48), 35 states have internal predecessors, (48), 18 states have call successors, (20), 11 states have call predecessors, (20), 8 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) Word has length 97 [2022-12-14 15:52:48,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:52:48,815 INFO L225 Difference]: With dead ends: 1143 [2022-12-14 15:52:48,815 INFO L226 Difference]: Without dead ends: 821 [2022-12-14 15:52:48,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 230 SyntacticMatches, 4 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1217 ImplicationChecksByTransitivity, 116.5s TimeCoverageRelationStatistics Valid=281, Invalid=5121, Unknown=0, NotChecked=0, Total=5402 [2022-12-14 15:52:48,817 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 485 mSDsluCounter, 5717 mSDsCounter, 0 mSdLazyCounter, 7755 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 5996 SdHoareTripleChecker+Invalid, 7824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 7755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2022-12-14 15:52:48,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 5996 Invalid, 7824 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [69 Valid, 7755 Invalid, 0 Unknown, 0 Unchecked, 22.4s Time] [2022-12-14 15:52:48,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2022-12-14 15:52:49,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 630. [2022-12-14 15:52:49,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 446 states have (on average 1.4439461883408071) internal successors, (644), 455 states have internal predecessors, (644), 140 states have call successors, (140), 47 states have call predecessors, (140), 43 states have return successors, (141), 129 states have call predecessors, (141), 139 states have call successors, (141) [2022-12-14 15:52:49,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 925 transitions. [2022-12-14 15:52:49,241 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 925 transitions. Word has length 97 [2022-12-14 15:52:49,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:52:49,241 INFO L495 AbstractCegarLoop]: Abstraction has 630 states and 925 transitions. [2022-12-14 15:52:49,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 38 states have (on average 1.263157894736842) internal successors, (48), 35 states have internal predecessors, (48), 18 states have call successors, (20), 11 states have call predecessors, (20), 8 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2022-12-14 15:52:49,241 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 925 transitions. [2022-12-14 15:52:49,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-14 15:52:49,243 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:52:49,243 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:52:49,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 15:52:49,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 15:52:49,445 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:52:49,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:52:49,446 INFO L85 PathProgramCache]: Analyzing trace with hash 683241162, now seen corresponding path program 1 times [2022-12-14 15:52:49,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:52:49,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867112775] [2022-12-14 15:52:49,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:52:49,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:52:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:52:49,569 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 15:52:49,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:52:49,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867112775] [2022-12-14 15:52:49,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867112775] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:52:49,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885605909] [2022-12-14 15:52:49,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:52:49,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:52:49,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:52:49,570 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:52:49,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fe0cbf-a824-4958-a737-a1e9997766de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 15:52:49,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:52:49,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 1259 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:52:49,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:52:49,787 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 15:52:49,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:52:49,831 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 15:52:49,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885605909] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:52:49,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1099174261] [2022-12-14 15:52:49,833 INFO L159 IcfgInterpreter]: Started Sifa with 88 locations of interest [2022-12-14 15:52:49,833 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:52:49,833 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:52:49,834 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:52:49,834 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs