./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/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_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product20.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/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_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/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 e0e95c13964d33a58c84e6632b6635f09155542b4e87cc9520cc45bb7c6f5f1d --- 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 11:11:06,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:11:06,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:11:06,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:11:06,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:11:06,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:11:06,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:11:06,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:11:06,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:11:06,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:11:06,962 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:11:06,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:11:06,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:11:06,965 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:11:06,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:11:06,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:11:06,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:11:06,969 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:11:06,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:11:06,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:11:06,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:11:06,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:11:06,977 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:11:06,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:11:06,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:11:06,981 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:11:06,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:11:06,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:11:06,983 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:11:06,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:11:06,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:11:06,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:11:06,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:11:06,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:11:06,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:11:06,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:11:06,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:11:06,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:11:06,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:11:06,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:11:06,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:11:06,991 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 11:11:07,013 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:11:07,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:11:07,014 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:11:07,014 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:11:07,015 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:11:07,015 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:11:07,015 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:11:07,015 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:11:07,015 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:11:07,016 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:11:07,016 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:11:07,016 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:11:07,016 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:11:07,016 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:11:07,016 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:11:07,017 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:11:07,017 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:11:07,017 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:11:07,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:11:07,018 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:11:07,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:11:07,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:11:07,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:11:07,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:11:07,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:11:07,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:11:07,019 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:11:07,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:11:07,019 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:11:07,020 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:11:07,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:11:07,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:11:07,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:11:07,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:11:07,021 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:11:07,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:11:07,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:11:07,021 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:11:07,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:11:07,022 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:11:07,022 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:11:07,022 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_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0e95c13964d33a58c84e6632b6635f09155542b4e87cc9520cc45bb7c6f5f1d [2022-12-14 11:11:07,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:11:07,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:11:07,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:11:07,228 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:11:07,228 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:11:07,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec1_product20.cil.c [2022-12-14 11:11:09,752 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:11:09,983 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:11:09,984 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/sv-benchmarks/c/product-lines/email_spec1_product20.cil.c [2022-12-14 11:11:09,998 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/data/1b9faa167/9a1f799e82e649278ded36235a244b9a/FLAG07dc21ecb [2022-12-14 11:11:10,012 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/data/1b9faa167/9a1f799e82e649278ded36235a244b9a [2022-12-14 11:11:10,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:11:10,015 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:11:10,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:11:10,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:11:10,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:11:10,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:11:10" (1/1) ... [2022-12-14 11:11:10,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33b098e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:11:10, skipping insertion in model container [2022-12-14 11:11:10,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:11:10" (1/1) ... [2022-12-14 11:11:10,025 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:11:10,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:11:10,334 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:11:10,343 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:11:10,344 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:11:10,346 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:11:10,358 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:11:10,376 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_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/sv-benchmarks/c/product-lines/email_spec1_product20.cil.c[17698,17711] [2022-12-14 11:11:10,433 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:11:10,434 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:11:10,438 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:11:10,516 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:11:10,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:11:10,564 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:11:10,587 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:11:10,589 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:11:10,590 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:11:10,591 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:11:10,596 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:11:10,600 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_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/sv-benchmarks/c/product-lines/email_spec1_product20.cil.c[17698,17711] [2022-12-14 11:11:10,603 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:11:10,604 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:11:10,606 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:11:10,635 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:11:10,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:11:10,677 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:11:10,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:11:10 WrapperNode [2022-12-14 11:11:10,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:11:10,679 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:11:10,679 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:11:10,679 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:11:10,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:11:10" (1/1) ... [2022-12-14 11:11:10,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:11:10" (1/1) ... [2022-12-14 11:11:10,739 INFO L138 Inliner]: procedures = 128, calls = 215, calls flagged for inlining = 55, calls inlined = 48, statements flattened = 953 [2022-12-14 11:11:10,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:11:10,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:11:10,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:11:10,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:11:10,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:11:10" (1/1) ... [2022-12-14 11:11:10,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:11:10" (1/1) ... [2022-12-14 11:11:10,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:11:10" (1/1) ... [2022-12-14 11:11:10,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:11:10" (1/1) ... [2022-12-14 11:11:10,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:11:10" (1/1) ... [2022-12-14 11:11:10,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:11:10" (1/1) ... [2022-12-14 11:11:10,771 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:11:10" (1/1) ... [2022-12-14 11:11:10,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:11:10" (1/1) ... [2022-12-14 11:11:10,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:11:10,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:11:10,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:11:10,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:11:10,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:11:10" (1/1) ... [2022-12-14 11:11:10,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:11:10,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:11:10,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:11:10,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:11:10,838 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 11:11:10,838 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 11:11:10,838 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 11:11:10,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 11:11:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 11:11:10,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 11:11:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 11:11:10,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 11:11:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 11:11:10,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 11:11:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-14 11:11:10,839 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-14 11:11:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 11:11:10,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 11:11:10,840 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 11:11:10,840 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 11:11:10,840 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 11:11:10,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 11:11:10,840 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 11:11:10,840 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 11:11:10,840 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 11:11:10,840 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 11:11:10,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 11:11:10,841 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 11:11:10,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 11:11:10,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:11:10,841 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 11:11:10,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 11:11:10,841 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 11:11:10,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 11:11:10,841 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 11:11:10,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 11:11:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 11:11:10,842 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 11:11:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 11:11:10,842 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 11:11:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 11:11:10,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 11:11:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 11:11:10,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 11:11:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 11:11:10,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 11:11:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:11:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 11:11:10,843 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 11:11:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 11:11:10,843 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 11:11:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:11:10,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:11:10,993 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:11:10,995 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:11:11,572 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:11:11,854 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:11:11,855 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 11:11:11,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:11:11 BoogieIcfgContainer [2022-12-14 11:11:11,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:11:11,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:11:11,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:11:11,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:11:11,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:11:10" (1/3) ... [2022-12-14 11:11:11,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76fe538e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:11:11, skipping insertion in model container [2022-12-14 11:11:11,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:11:10" (2/3) ... [2022-12-14 11:11:11,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76fe538e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:11:11, skipping insertion in model container [2022-12-14 11:11:11,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:11:11" (3/3) ... [2022-12-14 11:11:11,863 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product20.cil.c [2022-12-14 11:11:11,877 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:11:11,877 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 11:11:11,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:11:11,939 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;@6f4f1f22, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:11:11,939 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 11:11:11,944 INFO L276 IsEmpty]: Start isEmpty. Operand has 181 states, 103 states have (on average 1.3398058252427185) internal successors, (138), 108 states have internal predecessors, (138), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2022-12-14 11:11:11,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-14 11:11:11,956 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:11:11,957 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:11:11,957 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:11:11,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:11:11,963 INFO L85 PathProgramCache]: Analyzing trace with hash 642986941, now seen corresponding path program 1 times [2022-12-14 11:11:11,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:11:11,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848830032] [2022-12-14 11:11:11,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:11:11,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:11:12,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:11:12,263 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:11:12,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:11:12,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848830032] [2022-12-14 11:11:12,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848830032] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:11:12,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:11:12,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:11:12,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683590202] [2022-12-14 11:11:12,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:11:12,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:11:12,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:11:12,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:11:12,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:11:12,301 INFO L87 Difference]: Start difference. First operand has 181 states, 103 states have (on average 1.3398058252427185) internal successors, (138), 108 states have internal predecessors, (138), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 11:11:12,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:11:12,414 INFO L93 Difference]: Finished difference Result 270 states and 363 transitions. [2022-12-14 11:11:12,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:11:12,417 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2022-12-14 11:11:12,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:11:12,427 INFO L225 Difference]: With dead ends: 270 [2022-12-14 11:11:12,428 INFO L226 Difference]: Without dead ends: 178 [2022-12-14 11:11:12,431 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 11:11:12,433 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:11:12,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 208 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:11:12,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-12-14 11:11:12,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2022-12-14 11:11:12,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 101 states have (on average 1.306930693069307) internal successors, (132), 105 states have internal predecessors, (132), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2022-12-14 11:11:12,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 239 transitions. [2022-12-14 11:11:12,470 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 239 transitions. Word has length 63 [2022-12-14 11:11:12,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:11:12,471 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 239 transitions. [2022-12-14 11:11:12,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 11:11:12,472 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 239 transitions. [2022-12-14 11:11:12,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 11:11:12,474 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:11:12,474 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:11:12,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:11:12,474 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:11:12,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:11:12,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1260896858, now seen corresponding path program 1 times [2022-12-14 11:11:12,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:11:12,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878306700] [2022-12-14 11:11:12,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:11:12,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:11:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:11:12,592 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:11:12,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:11:12,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878306700] [2022-12-14 11:11:12,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878306700] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:11:12,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:11:12,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:11:12,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169534247] [2022-12-14 11:11:12,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:11:12,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:11:12,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:11:12,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:11:12,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:11:12,596 INFO L87 Difference]: Start difference. First operand 178 states and 239 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 11:11:12,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:11:12,702 INFO L93 Difference]: Finished difference Result 266 states and 348 transitions. [2022-12-14 11:11:12,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:11:12,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 64 [2022-12-14 11:11:12,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:11:12,704 INFO L225 Difference]: With dead ends: 266 [2022-12-14 11:11:12,704 INFO L226 Difference]: Without dead ends: 180 [2022-12-14 11:11:12,706 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 11:11:12,707 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 0 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:11:12,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 409 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:11:12,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-12-14 11:11:12,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2022-12-14 11:11:12,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 107 states have internal predecessors, (134), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2022-12-14 11:11:12,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 241 transitions. [2022-12-14 11:11:12,726 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 241 transitions. Word has length 64 [2022-12-14 11:11:12,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:11:12,726 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 241 transitions. [2022-12-14 11:11:12,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 11:11:12,727 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 241 transitions. [2022-12-14 11:11:12,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 11:11:12,729 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:11:12,729 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] [2022-12-14 11:11:12,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:11:12,729 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:11:12,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:11:12,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1214487244, now seen corresponding path program 1 times [2022-12-14 11:11:12,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:11:12,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344960095] [2022-12-14 11:11:12,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:11:12,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:11:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:11:12,830 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:11:12,831 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:11:12,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344960095] [2022-12-14 11:11:12,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344960095] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:11:12,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:11:12,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:11:12,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638035703] [2022-12-14 11:11:12,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:11:12,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:11:12,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:11:12,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:11:12,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:11:12,833 INFO L87 Difference]: Start difference. First operand 180 states and 241 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 11:11:12,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:11:12,932 INFO L93 Difference]: Finished difference Result 395 states and 549 transitions. [2022-12-14 11:11:12,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:11:12,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 69 [2022-12-14 11:11:12,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:11:12,934 INFO L225 Difference]: With dead ends: 395 [2022-12-14 11:11:12,934 INFO L226 Difference]: Without dead ends: 233 [2022-12-14 11:11:12,936 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 11:11:12,937 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 59 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 433 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 11:11:12,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 433 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:11:12,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-12-14 11:11:12,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 228. [2022-12-14 11:11:12,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 137 states have (on average 1.3795620437956204) internal successors, (189), 141 states have internal predecessors, (189), 68 states have call successors, (68), 22 states have call predecessors, (68), 22 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2022-12-14 11:11:12,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 324 transitions. [2022-12-14 11:11:12,961 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 324 transitions. Word has length 69 [2022-12-14 11:11:12,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:11:12,961 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 324 transitions. [2022-12-14 11:11:12,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 11:11:12,961 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 324 transitions. [2022-12-14 11:11:12,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-14 11:11:12,963 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:11:12,964 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] [2022-12-14 11:11:12,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 11:11:12,964 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:11:12,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:11:12,965 INFO L85 PathProgramCache]: Analyzing trace with hash 512769853, now seen corresponding path program 1 times [2022-12-14 11:11:12,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:11:12,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022831210] [2022-12-14 11:11:12,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:11:12,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:11:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:11:13,106 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:11:13,107 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:11:13,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022831210] [2022-12-14 11:11:13,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022831210] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:11:13,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315830747] [2022-12-14 11:11:13,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:11:13,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:11:13,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:11:13,109 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:11:13,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 11:11:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:11:13,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:11:13,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:11:13,381 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:11:13,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:11:13,438 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:11:13,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315830747] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:11:13,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [944364218] [2022-12-14 11:11:13,456 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2022-12-14 11:11:13,456 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:11:13,460 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:11:13,465 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:11:13,466 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:11:45,574 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 11:11:45,860 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 11:11:46,146 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:12:27,459 WARN L233 SmtUtils]: Spent 11.21s on a formula simplification. DAG size of input: 588 DAG size of output: 439 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:12:33,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [944364218] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:12:33,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:12:33,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 11:12:33,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172024155] [2022-12-14 11:12:33,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:12:33,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 11:12:33,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:12:33,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 11:12:33,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=572, Unknown=0, NotChecked=0, Total=650 [2022-12-14 11:12:33,312 INFO L87 Difference]: Start difference. First operand 228 states and 324 transitions. Second operand has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-12-14 11:12:54,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:12:54,255 INFO L93 Difference]: Finished difference Result 542 states and 822 transitions. [2022-12-14 11:12:54,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 11:12:54,256 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 70 [2022-12-14 11:12:54,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:12:54,257 INFO L225 Difference]: With dead ends: 542 [2022-12-14 11:12:54,257 INFO L226 Difference]: Without dead ends: 332 [2022-12-14 11:12:54,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 62.0s TimeCoverageRelationStatistics Valid=134, Invalid=858, Unknown=0, NotChecked=0, Total=992 [2022-12-14 11:12:54,259 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 199 mSDsluCounter, 2740 mSDsCounter, 0 mSdLazyCounter, 1959 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 2969 SdHoareTripleChecker+Invalid, 1982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:12:54,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 2969 Invalid, 1982 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 1959 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-12-14 11:12:54,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-12-14 11:12:54,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 256. [2022-12-14 11:12:54,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 164 states have (on average 1.3902439024390243) internal successors, (228), 168 states have internal predecessors, (228), 68 states have call successors, (68), 23 states have call predecessors, (68), 23 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2022-12-14 11:12:54,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 363 transitions. [2022-12-14 11:12:54,338 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 363 transitions. Word has length 70 [2022-12-14 11:12:54,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:12:54,339 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 363 transitions. [2022-12-14 11:12:54,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-12-14 11:12:54,339 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 363 transitions. [2022-12-14 11:12:54,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 11:12:54,340 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:12:54,341 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:12:54,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 11:12:54,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:12:54,543 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:12:54,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:12:54,544 INFO L85 PathProgramCache]: Analyzing trace with hash 621348366, now seen corresponding path program 1 times [2022-12-14 11:12:54,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:12:54,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388480253] [2022-12-14 11:12:54,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:12:54,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:12:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:12:54,640 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 11:12:54,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:12:54,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388480253] [2022-12-14 11:12:54,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388480253] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:12:54,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929508587] [2022-12-14 11:12:54,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:12:54,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:12:54,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:12:54,642 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:12:54,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 11:12:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:12:54,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:12:54,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:12:54,873 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 11:12:54,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:12:54,915 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 11:12:54,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929508587] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:12:54,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1362335526] [2022-12-14 11:12:54,918 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-12-14 11:12:54,918 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:12:54,919 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:12:54,919 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:12:54,919 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:13:29,482 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 11:13:29,770 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-12-14 11:13:30,051 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 257 for LOIs [2022-12-14 11:13:31,548 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-12-14 11:13:31,587 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 259 for LOIs [2022-12-14 11:13:32,260 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 266 for LOIs [2022-12-14 11:13:40,925 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 237 for LOIs [2022-12-14 11:13:40,961 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 454 for LOIs [2022-12-14 11:13:41,573 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 229 for LOIs [2022-12-14 11:13:41,607 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:14:17,674 WARN L233 SmtUtils]: Spent 6.26s on a formula simplification. DAG size of input: 587 DAG size of output: 337 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:14:30,454 WARN L233 SmtUtils]: Spent 12.47s on a formula simplification. DAG size of input: 589 DAG size of output: 461 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:15:16,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1362335526] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:15:16,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:15:16,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [4, 4, 4] total 55 [2022-12-14 11:15:16,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647395697] [2022-12-14 11:15:16,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:15:16,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-12-14 11:15:16,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:15:16,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-12-14 11:15:16,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=2827, Unknown=0, NotChecked=0, Total=2970 [2022-12-14 11:15:16,316 INFO L87 Difference]: Start difference. First operand 256 states and 363 transitions. Second operand has 50 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 31 states have internal predecessors, (40), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 11:15:29,563 WARN L233 SmtUtils]: Spent 9.10s on a formula simplification. DAG size of input: 569 DAG size of output: 418 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:15:56,823 WARN L233 SmtUtils]: Spent 6.31s on a formula simplification. DAG size of input: 592 DAG size of output: 405 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:16:25,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:16:25,328 INFO L93 Difference]: Finished difference Result 628 states and 944 transitions. [2022-12-14 11:16:25,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-12-14 11:16:25,328 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 31 states have internal predecessors, (40), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 76 [2022-12-14 11:16:25,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:16:25,330 INFO L225 Difference]: With dead ends: 628 [2022-12-14 11:16:25,330 INFO L226 Difference]: Without dead ends: 418 [2022-12-14 11:16:25,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 175 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1183 ImplicationChecksByTransitivity, 144.8s TimeCoverageRelationStatistics Valid=319, Invalid=5381, Unknown=0, NotChecked=0, Total=5700 [2022-12-14 11:16:25,332 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 294 mSDsluCounter, 5331 mSDsCounter, 0 mSdLazyCounter, 6798 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 5552 SdHoareTripleChecker+Invalid, 6845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 6798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:16:25,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 5552 Invalid, 6845 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [47 Valid, 6798 Invalid, 0 Unknown, 0 Unchecked, 18.4s Time] [2022-12-14 11:16:25,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-12-14 11:16:25,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 320. [2022-12-14 11:16:25,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 213 states have (on average 1.403755868544601) internal successors, (299), 218 states have internal predecessors, (299), 78 states have call successors, (78), 31 states have call predecessors, (78), 28 states have return successors, (77), 72 states have call predecessors, (77), 77 states have call successors, (77) [2022-12-14 11:16:25,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 454 transitions. [2022-12-14 11:16:25,601 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 454 transitions. Word has length 76 [2022-12-14 11:16:25,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:16:25,602 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 454 transitions. [2022-12-14 11:16:25,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 31 states have internal predecessors, (40), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 11:16:25,602 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 454 transitions. [2022-12-14 11:16:25,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 11:16:25,603 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:16:25,603 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 11:16:25,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 11:16:25,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:16:25,805 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:16:25,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:16:25,807 INFO L85 PathProgramCache]: Analyzing trace with hash 792839900, now seen corresponding path program 1 times [2022-12-14 11:16:25,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:16:25,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631555745] [2022-12-14 11:16:25,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:16:25,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:16:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:16:25,952 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:16:25,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:16:25,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631555745] [2022-12-14 11:16:25,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631555745] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:16:25,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667296010] [2022-12-14 11:16:25,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:16:25,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:16:25,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:16:25,953 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:16:25,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 11:16:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:16:26,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 1124 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:16:26,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:16:26,184 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:16:26,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:16:26,225 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:16:26,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667296010] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:16:26,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [303221696] [2022-12-14 11:16:26,227 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-12-14 11:16:26,227 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:16:26,228 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:16:26,228 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:16:26,228 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:17:23,155 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 11:17:23,437 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-12-14 11:17:23,500 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 456 for LOIs [2022-12-14 11:17:23,807 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 454 for LOIs [2022-12-14 11:17:24,128 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 11:17:24,414 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:18:04,598 WARN L233 SmtUtils]: Spent 12.16s on a formula simplification. DAG size of input: 636 DAG size of output: 514 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:18:11,332 WARN L233 SmtUtils]: Spent 6.44s on a formula simplification. DAG size of input: 638 DAG size of output: 408 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:18:34,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [303221696] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:18:34,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:18:34,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 11:18:34,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186618728] [2022-12-14 11:18:34,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:18:34,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 11:18:34,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:18:34,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 11:18:34,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 11:18:34,223 INFO L87 Difference]: Start difference. First operand 320 states and 454 transitions. Second operand has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2022-12-14 11:18:41,650 WARN L233 SmtUtils]: Spent 6.05s on a formula simplification. DAG size of input: 623 DAG size of output: 430 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:18:53,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:18:53,723 INFO L93 Difference]: Finished difference Result 650 states and 973 transitions. [2022-12-14 11:18:53,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 11:18:53,723 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) Word has length 79 [2022-12-14 11:18:53,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:18:53,726 INFO L225 Difference]: With dead ends: 650 [2022-12-14 11:18:53,726 INFO L226 Difference]: Without dead ends: 440 [2022-12-14 11:18:53,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 77.8s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 11:18:53,728 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 199 mSDsluCounter, 3388 mSDsCounter, 0 mSdLazyCounter, 3474 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 3605 SdHoareTripleChecker+Invalid, 3485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:18:53,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 3605 Invalid, 3485 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 3474 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2022-12-14 11:18:53,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-12-14 11:18:53,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 379. [2022-12-14 11:18:53,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 265 states have (on average 1.430188679245283) internal successors, (379), 271 states have internal predecessors, (379), 82 states have call successors, (82), 34 states have call predecessors, (82), 31 states have return successors, (81), 75 states have call predecessors, (81), 81 states have call successors, (81) [2022-12-14 11:18:53,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 542 transitions. [2022-12-14 11:18:53,971 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 542 transitions. Word has length 79 [2022-12-14 11:18:53,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:18:53,971 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 542 transitions. [2022-12-14 11:18:53,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2022-12-14 11:18:53,972 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 542 transitions. [2022-12-14 11:18:53,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 11:18:53,973 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:18:53,974 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] [2022-12-14 11:18:53,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 11:18:54,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 11:18:54,174 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:18:54,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:18:54,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1160628601, now seen corresponding path program 1 times [2022-12-14 11:18:54,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:18:54,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420453872] [2022-12-14 11:18:54,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:18:54,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:18:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:18:54,287 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:18:54,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:18:54,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420453872] [2022-12-14 11:18:54,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420453872] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:18:54,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223671580] [2022-12-14 11:18:54,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:18:54,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:18:54,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:18:54,289 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:18:54,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 11:18:54,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:18:54,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:18:54,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:18:54,497 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:18:54,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:18:54,538 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 11:18:54,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223671580] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:18:54,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1663670061] [2022-12-14 11:18:54,542 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-12-14 11:18:54,542 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:18:54,542 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:18:54,542 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:18:54,542 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:19:28,395 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 11:19:28,678 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 11:19:28,960 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:20:09,062 WARN L233 SmtUtils]: Spent 10.34s on a formula simplification. DAG size of input: 601 DAG size of output: 465 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:20:21,689 WARN L233 SmtUtils]: Spent 12.36s on a formula simplification. DAG size of input: 603 DAG size of output: 465 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:20:37,938 WARN L233 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 578 DAG size of output: 377 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:20:48,151 WARN L233 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 576 DAG size of output: 370 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:20:53,595 WARN L233 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 578 DAG size of output: 404 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:21:04,705 WARN L233 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 576 DAG size of output: 409 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:21:10,875 WARN L233 SmtUtils]: Spent 5.79s on a formula simplification. DAG size of input: 572 DAG size of output: 405 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:21:11,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1663670061] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:11,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:21:11,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-12-14 11:21:11,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211402531] [2022-12-14 11:21:11,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:11,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 11:21:11,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:11,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 11:21:11,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=960, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 11:21:11,806 INFO L87 Difference]: Start difference. First operand 379 states and 542 transitions. Second operand has 29 states, 24 states have (on average 1.875) internal successors, (45), 23 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-12-14 11:21:20,261 WARN L233 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 591 DAG size of output: 404 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:21:34,803 WARN L233 SmtUtils]: Spent 14.16s on a formula simplification. DAG size of input: 524 DAG size of output: 460 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:21:38,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:38,458 INFO L93 Difference]: Finished difference Result 657 states and 964 transitions. [2022-12-14 11:21:38,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 11:21:38,459 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 24 states have (on average 1.875) internal successors, (45), 23 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 78 [2022-12-14 11:21:38,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:38,461 INFO L225 Difference]: With dead ends: 657 [2022-12-14 11:21:38,461 INFO L226 Difference]: Without dead ends: 427 [2022-12-14 11:21:38,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 122.7s TimeCoverageRelationStatistics Valid=188, Invalid=1072, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 11:21:38,462 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 248 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 1821 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 1838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:38,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 2666 Invalid, 1838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1821 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-12-14 11:21:38,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-12-14 11:21:38,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 378. [2022-12-14 11:21:38,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 264 states have (on average 1.4090909090909092) internal successors, (372), 270 states have internal predecessors, (372), 82 states have call successors, (82), 34 states have call predecessors, (82), 31 states have return successors, (81), 75 states have call predecessors, (81), 81 states have call successors, (81) [2022-12-14 11:21:38,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 535 transitions. [2022-12-14 11:21:38,700 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 535 transitions. Word has length 78 [2022-12-14 11:21:38,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:38,700 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 535 transitions. [2022-12-14 11:21:38,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 24 states have (on average 1.875) internal successors, (45), 23 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-12-14 11:21:38,700 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 535 transitions. [2022-12-14 11:21:38,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-14 11:21:38,701 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:38,701 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:21:38,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 11:21:38,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 11:21:38,903 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:21:38,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:38,904 INFO L85 PathProgramCache]: Analyzing trace with hash -585523381, now seen corresponding path program 1 times [2022-12-14 11:21:38,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:38,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881717383] [2022-12-14 11:21:38,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:38,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:39,024 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 11:21:39,024 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:39,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881717383] [2022-12-14 11:21:39,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881717383] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:21:39,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133098633] [2022-12-14 11:21:39,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:39,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:21:39,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:21:39,026 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:21:39,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa69469-8123-4b42-9cd6-6a91af6ebbaf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 11:21:39,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:39,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 11:21:39,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:21:39,235 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 11:21:39,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:21:39,285 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 11:21:39,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133098633] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:21:39,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1349216608] [2022-12-14 11:21:39,288 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-12-14 11:21:39,288 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:21:39,288 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:21:39,288 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:21:39,289 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:23:12,801 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 11:23:13,087 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-12-14 11:23:13,366 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 257 for LOIs [2022-12-14 11:23:14,882 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-12-14 11:23:14,917 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 257 for LOIs [2022-12-14 11:23:15,581 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 266 for LOIs [2022-12-14 11:23:19,206 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 237 for LOIs [2022-12-14 11:23:19,243 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 469 for LOIs [2022-12-14 11:23:20,929 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 229 for LOIs [2022-12-14 11:23:20,965 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:23:55,436 WARN L233 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 561 DAG size of output: 365 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:24:00,855 WARN L233 SmtUtils]: Spent 5.19s on a formula simplification. DAG size of input: 563 DAG size of output: 367 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:24:28,325 WARN L233 SmtUtils]: Spent 7.63s on a formula simplification. DAG size of input: 469 DAG size of output: 360 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:24:54,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1349216608] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:54,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:24:54,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [5, 5, 5] total 55 [2022-12-14 11:24:54,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979425760] [2022-12-14 11:24:54,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:54,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-12-14 11:24:54,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:54,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-12-14 11:24:54,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=2821, Unknown=0, NotChecked=0, Total=2970 [2022-12-14 11:24:54,193 INFO L87 Difference]: Start difference. First operand 378 states and 535 transitions. Second operand has 50 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 31 states have internal predecessors, (41), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13)