./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product29.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_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/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_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/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_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/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 e2402328b10acba07d45e1b6bd18216e1645c73446d4739f1dc37852ed64162e --- 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 06:22:23,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:22:23,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:22:23,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:22:23,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:22:23,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:22:23,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:22:23,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:22:23,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:22:23,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:22:23,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:22:23,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:22:23,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:22:23,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:22:23,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:22:23,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:22:23,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:22:23,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:22:23,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:22:23,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:22:23,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:22:23,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:22:23,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:22:23,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:22:23,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:22:23,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:22:23,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:22:23,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:22:23,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:22:23,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:22:23,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:22:23,740 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:22:23,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:22:23,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:22:23,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:22:23,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:22:23,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:22:23,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:22:23,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:22:23,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:22:23,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:22:23,745 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 06:22:23,765 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:22:23,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:22:23,766 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:22:23,766 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:22:23,767 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:22:23,767 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:22:23,767 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:22:23,767 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:22:23,767 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:22:23,768 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:22:23,768 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:22:23,768 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:22:23,768 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:22:23,768 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:22:23,769 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:22:23,769 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:22:23,769 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:22:23,769 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:22:23,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:22:23,770 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:22:23,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:22:23,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:22:23,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:22:23,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:22:23,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:22:23,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:22:23,771 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:22:23,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:22:23,772 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:22:23,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:22:23,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:22:23,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:22:23,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:22:23,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:22:23,773 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:22:23,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:22:23,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:22:23,773 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:22:23,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:22:23,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:22:23,774 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:22:23,774 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_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2402328b10acba07d45e1b6bd18216e1645c73446d4739f1dc37852ed64162e [2022-12-14 06:22:23,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:22:23,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:22:23,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:22:24,000 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:22:24,000 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:22:24,001 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec9_product29.cil.c [2022-12-14 06:22:26,698 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:22:26,943 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:22:26,943 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/sv-benchmarks/c/product-lines/email_spec9_product29.cil.c [2022-12-14 06:22:26,954 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/data/b8985b226/da171dc43f044e86a762e1bbb3df4e14/FLAGdcae53ab6 [2022-12-14 06:22:26,964 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/data/b8985b226/da171dc43f044e86a762e1bbb3df4e14 [2022-12-14 06:22:26,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:22:26,967 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:22:26,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:22:26,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:22:26,971 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:22:26,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:22:26" (1/1) ... [2022-12-14 06:22:26,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39843c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:26, skipping insertion in model container [2022-12-14 06:22:26,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:22:26" (1/1) ... [2022-12-14 06:22:26,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:22:27,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:22:27,188 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:22:27,192 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:22:27,234 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:22:27,244 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:22:27,245 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:22:27,248 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:22:27,436 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:22:27,437 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:22:27,440 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:22:27,444 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_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/sv-benchmarks/c/product-lines/email_spec9_product29.cil.c[65089,65102] [2022-12-14 06:22:27,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:22:27,459 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:22:27,476 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:22:27,477 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:22:27,479 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:22:27,481 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:22:27,482 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:22:27,483 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:22:27,541 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:22:27,542 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:22:27,545 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:22:27,548 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_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/sv-benchmarks/c/product-lines/email_spec9_product29.cil.c[65089,65102] [2022-12-14 06:22:27,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:22:27,572 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:22:27,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:27 WrapperNode [2022-12-14 06:22:27,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:22:27,574 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:22:27,574 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:22:27,574 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:22:27,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:27" (1/1) ... [2022-12-14 06:22:27,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:27" (1/1) ... [2022-12-14 06:22:27,652 INFO L138 Inliner]: procedures = 132, calls = 232, calls flagged for inlining = 56, calls inlined = 48, statements flattened = 939 [2022-12-14 06:22:27,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:22:27,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:22:27,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:22:27,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:22:27,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:27" (1/1) ... [2022-12-14 06:22:27,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:27" (1/1) ... [2022-12-14 06:22:27,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:27" (1/1) ... [2022-12-14 06:22:27,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:27" (1/1) ... [2022-12-14 06:22:27,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:27" (1/1) ... [2022-12-14 06:22:27,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:27" (1/1) ... [2022-12-14 06:22:27,703 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:27" (1/1) ... [2022-12-14 06:22:27,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:27" (1/1) ... [2022-12-14 06:22:27,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:22:27,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:22:27,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:22:27,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:22:27,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:27" (1/1) ... [2022-12-14 06:22:27,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:22:27,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:22:27,748 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:22:27,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:22:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 06:22:27,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 06:22:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 06:22:27,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 06:22:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 06:22:27,790 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 06:22:27,790 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 06:22:27,790 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 06:22:27,790 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 06:22:27,790 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 06:22:27,790 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 06:22:27,790 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 06:22:27,790 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 06:22:27,790 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 06:22:27,790 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 06:22:27,790 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 06:22:27,790 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 06:22:27,791 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 06:22:27,791 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 06:22:27,791 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 06:22:27,791 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 06:22:27,791 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 06:22:27,791 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 06:22:27,791 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 06:22:27,791 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 06:22:27,791 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 06:22:27,791 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 06:22:27,791 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 06:22:27,791 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 06:22:27,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:22:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 06:22:27,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 06:22:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 06:22:27,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 06:22:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 06:22:27,792 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 06:22:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 06:22:27,792 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 06:22:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 06:22:27,792 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 06:22:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 06:22:27,792 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 06:22:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 06:22:27,793 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 06:22:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-12-14 06:22:27,793 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-12-14 06:22:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 06:22:27,793 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 06:22:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 06:22:27,793 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 06:22:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 06:22:27,793 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 06:22:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 06:22:27,793 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 06:22:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:22:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 06:22:27,794 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 06:22:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 06:22:27,794 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 06:22:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:22:27,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:22:27,968 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:22:27,979 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:22:28,608 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:22:28,999 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:22:28,999 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:22:29,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:22:29 BoogieIcfgContainer [2022-12-14 06:22:29,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:22:29,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:22:29,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:22:29,005 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:22:29,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:22:26" (1/3) ... [2022-12-14 06:22:29,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74854def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:22:29, skipping insertion in model container [2022-12-14 06:22:29,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:27" (2/3) ... [2022-12-14 06:22:29,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74854def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:22:29, skipping insertion in model container [2022-12-14 06:22:29,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:22:29" (3/3) ... [2022-12-14 06:22:29,007 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product29.cil.c [2022-12-14 06:22:29,021 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:22:29,022 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:22:29,058 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:22:29,063 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;@3bd84726, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:22:29,063 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:22:29,068 INFO L276 IsEmpty]: Start isEmpty. Operand has 213 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 125 states have internal predecessors, (157), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2022-12-14 06:22:29,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 06:22:29,077 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:22:29,077 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, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:22:29,077 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:22:29,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:22:29,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1270836975, now seen corresponding path program 1 times [2022-12-14 06:22:29,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:22:29,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822037671] [2022-12-14 06:22:29,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:22:29,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:22:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:22:29,366 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 06:22:29,367 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:22:29,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822037671] [2022-12-14 06:22:29,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822037671] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:22:29,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:22:29,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:22:29,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315923434] [2022-12-14 06:22:29,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:22:29,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 06:22:29,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:22:29,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 06:22:29,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:22:29,407 INFO L87 Difference]: Start difference. First operand has 213 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 125 states have internal predecessors, (157), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 06:22:29,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:22:29,536 INFO L93 Difference]: Finished difference Result 334 states and 437 transitions. [2022-12-14 06:22:29,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 06:22:29,539 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2022-12-14 06:22:29,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:22:29,550 INFO L225 Difference]: With dead ends: 334 [2022-12-14 06:22:29,551 INFO L226 Difference]: Without dead ends: 210 [2022-12-14 06:22:29,556 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 06:22:29,560 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:22:29,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 241 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:22:29,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-12-14 06:22:29,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2022-12-14 06:22:29,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 118 states have (on average 1.2796610169491525) internal successors, (151), 122 states have internal predecessors, (151), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-14 06:22:29,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 276 transitions. [2022-12-14 06:22:29,605 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 276 transitions. Word has length 71 [2022-12-14 06:22:29,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:22:29,607 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 276 transitions. [2022-12-14 06:22:29,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 06:22:29,607 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 276 transitions. [2022-12-14 06:22:29,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 06:22:29,612 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:22:29,613 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:22:29,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:22:29,613 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:22:29,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:22:29,614 INFO L85 PathProgramCache]: Analyzing trace with hash 252677136, now seen corresponding path program 1 times [2022-12-14 06:22:29,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:22:29,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657315505] [2022-12-14 06:22:29,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:22:29,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:22:29,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:22:29,781 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 06:22:29,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:22:29,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657315505] [2022-12-14 06:22:29,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657315505] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:22:29,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:22:29,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:22:29,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494255854] [2022-12-14 06:22:29,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:22:29,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:22:29,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:22:29,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:22:29,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:22:29,784 INFO L87 Difference]: Start difference. First operand 210 states and 276 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 06:22:29,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:22:29,889 INFO L93 Difference]: Finished difference Result 330 states and 422 transitions. [2022-12-14 06:22:29,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:22:29,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2022-12-14 06:22:29,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:22:29,893 INFO L225 Difference]: With dead ends: 330 [2022-12-14 06:22:29,893 INFO L226 Difference]: Without dead ends: 212 [2022-12-14 06:22:29,895 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 06:22:29,896 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 0 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:22:29,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 475 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:22:29,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-12-14 06:22:29,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2022-12-14 06:22:29,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 120 states have (on average 1.275) internal successors, (153), 124 states have internal predecessors, (153), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-14 06:22:29,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 278 transitions. [2022-12-14 06:22:29,926 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 278 transitions. Word has length 72 [2022-12-14 06:22:29,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:22:29,926 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 278 transitions. [2022-12-14 06:22:29,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 06:22:29,927 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 278 transitions. [2022-12-14 06:22:29,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-14 06:22:29,929 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:22:29,929 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:22:29,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:22:29,930 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:22:29,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:22:29,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1504561032, now seen corresponding path program 1 times [2022-12-14 06:22:29,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:22:29,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262155053] [2022-12-14 06:22:29,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:22:29,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:22:29,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:22:30,046 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 06:22:30,046 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:22:30,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262155053] [2022-12-14 06:22:30,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262155053] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:22:30,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:22:30,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:22:30,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263573371] [2022-12-14 06:22:30,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:22:30,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:22:30,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:22:30,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:22:30,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:22:30,048 INFO L87 Difference]: Start difference. First operand 212 states and 278 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 06:22:30,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:22:30,148 INFO L93 Difference]: Finished difference Result 459 states and 623 transitions. [2022-12-14 06:22:30,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:22:30,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2022-12-14 06:22:30,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:22:30,150 INFO L225 Difference]: With dead ends: 459 [2022-12-14 06:22:30,150 INFO L226 Difference]: Without dead ends: 265 [2022-12-14 06:22:30,151 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 06:22:30,151 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 59 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:22:30,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 495 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:22:30,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-12-14 06:22:30,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 260. [2022-12-14 06:22:30,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 154 states have (on average 1.3506493506493507) internal successors, (208), 158 states have internal predecessors, (208), 77 states have call successors, (77), 28 states have call predecessors, (77), 28 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2022-12-14 06:22:30,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 361 transitions. [2022-12-14 06:22:30,166 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 361 transitions. Word has length 77 [2022-12-14 06:22:30,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:22:30,166 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 361 transitions. [2022-12-14 06:22:30,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 06:22:30,167 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 361 transitions. [2022-12-14 06:22:30,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 06:22:30,168 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:22:30,168 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 06:22:30,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 06:22:30,168 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:22:30,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:22:30,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1628498925, now seen corresponding path program 1 times [2022-12-14 06:22:30,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:22:30,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367142838] [2022-12-14 06:22:30,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:22:30,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:22:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:22:30,278 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 06:22:30,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:22:30,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367142838] [2022-12-14 06:22:30,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367142838] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:22:30,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634006940] [2022-12-14 06:22:30,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:22:30,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:22:30,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:22:30,280 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:22:30,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 06:22:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:22:30,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:22:30,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:22:30,585 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 06:22:30,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:22:30,649 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 06:22:30,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634006940] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:22:30,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [233625720] [2022-12-14 06:22:30,671 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-12-14 06:22:30,671 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:22:30,675 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:22:30,681 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:22:30,682 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:22:55,156 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 06:22:55,461 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 06:22:55,767 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:23:38,932 WARN L233 SmtUtils]: Spent 7.15s on a formula simplification. DAG size of input: 581 DAG size of output: 350 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:23:46,810 WARN L233 SmtUtils]: Spent 7.61s on a formula simplification. DAG size of input: 589 DAG size of output: 332 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:23:59,743 WARN L233 SmtUtils]: Spent 12.64s on a formula simplification. DAG size of input: 586 DAG size of output: 457 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:24:05,974 WARN L233 SmtUtils]: Spent 5.94s on a formula simplification. DAG size of input: 584 DAG size of output: 333 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:24:09,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [233625720] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:24:09,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:24:09,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 06:24:09,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504986339] [2022-12-14 06:24:09,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:24:09,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 06:24:09,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:24:09,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 06:24:09,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-12-14 06:24:09,261 INFO L87 Difference]: Start difference. First operand 260 states and 361 transitions. Second operand has 21 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2022-12-14 06:24:16,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:24:16,808 INFO L93 Difference]: Finished difference Result 602 states and 889 transitions. [2022-12-14 06:24:16,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-14 06:24:16,809 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 78 [2022-12-14 06:24:16,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:24:16,810 INFO L225 Difference]: With dead ends: 602 [2022-12-14 06:24:16,811 INFO L226 Difference]: Without dead ends: 360 [2022-12-14 06:24:16,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 73.5s TimeCoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-12-14 06:24:16,812 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 161 mSDsluCounter, 3694 mSDsCounter, 0 mSdLazyCounter, 2353 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 3980 SdHoareTripleChecker+Invalid, 2362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:24:16,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 3980 Invalid, 2362 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2353 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-12-14 06:24:16,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-12-14 06:24:16,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 283. [2022-12-14 06:24:16,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 176 states have (on average 1.3693181818181819) internal successors, (241), 180 states have internal predecessors, (241), 77 states have call successors, (77), 29 states have call predecessors, (77), 29 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2022-12-14 06:24:16,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 394 transitions. [2022-12-14 06:24:16,899 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 394 transitions. Word has length 78 [2022-12-14 06:24:16,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:24:16,899 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 394 transitions. [2022-12-14 06:24:16,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2022-12-14 06:24:16,900 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 394 transitions. [2022-12-14 06:24:16,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 06:24:16,901 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:24:16,901 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, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:24:16,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 06:24:17,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:24:17,103 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:24:17,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:24:17,104 INFO L85 PathProgramCache]: Analyzing trace with hash 790066848, now seen corresponding path program 1 times [2022-12-14 06:24:17,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:24:17,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177650210] [2022-12-14 06:24:17,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:24:17,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:24:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:24:17,193 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 06:24:17,193 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:24:17,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177650210] [2022-12-14 06:24:17,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177650210] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:24:17,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:24:17,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:24:17,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735975301] [2022-12-14 06:24:17,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:24:17,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:24:17,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:24:17,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:24:17,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:24:17,195 INFO L87 Difference]: Start difference. First operand 283 states and 394 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 06:24:17,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:24:17,405 INFO L93 Difference]: Finished difference Result 669 states and 968 transitions. [2022-12-14 06:24:17,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:24:17,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 83 [2022-12-14 06:24:17,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:24:17,407 INFO L225 Difference]: With dead ends: 669 [2022-12-14 06:24:17,407 INFO L226 Difference]: Without dead ends: 410 [2022-12-14 06:24:17,408 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 06:24:17,409 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 57 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:24:17,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 496 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:24:17,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-12-14 06:24:17,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 405. [2022-12-14 06:24:17,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 267 states have (on average 1.4269662921348314) internal successors, (381), 271 states have internal predecessors, (381), 108 states have call successors, (108), 29 states have call predecessors, (108), 29 states have return successors, (107), 106 states have call predecessors, (107), 107 states have call successors, (107) [2022-12-14 06:24:17,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 596 transitions. [2022-12-14 06:24:17,548 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 596 transitions. Word has length 83 [2022-12-14 06:24:17,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:24:17,548 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 596 transitions. [2022-12-14 06:24:17,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 06:24:17,549 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 596 transitions. [2022-12-14 06:24:17,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 06:24:17,550 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:24:17,550 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:24:17,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 06:24:17,550 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:24:17,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:24:17,551 INFO L85 PathProgramCache]: Analyzing trace with hash 2049613166, now seen corresponding path program 1 times [2022-12-14 06:24:17,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:24:17,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835832930] [2022-12-14 06:24:17,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:24:17,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:24:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:24:17,629 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 06:24:17,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:24:17,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835832930] [2022-12-14 06:24:17,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835832930] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:24:17,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868392877] [2022-12-14 06:24:17,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:24:17,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:24:17,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:24:17,631 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:24:17,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 06:24:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:24:17,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 1087 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:24:17,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:24:17,846 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 06:24:17,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:24:17,889 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 06:24:17,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868392877] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:24:17,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1650983448] [2022-12-14 06:24:17,893 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 06:24:17,893 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:24:17,894 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:24:17,894 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:24:17,894 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:24:51,336 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 06:24:51,620 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 261 for LOIs [2022-12-14 06:24:53,213 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 235 for LOIs [2022-12-14 06:24:53,248 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 444 for LOIs [2022-12-14 06:24:53,521 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 263 for LOIs [2022-12-14 06:24:56,050 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 225 for LOIs [2022-12-14 06:24:56,084 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 264 for LOIs [2022-12-14 06:25:01,794 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 245 for LOIs [2022-12-14 06:25:01,859 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 242 for LOIs [2022-12-14 06:25:01,896 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 484 for LOIs [2022-12-14 06:25:04,974 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 250 for LOIs [2022-12-14 06:25:05,017 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:25:50,303 WARN L233 SmtUtils]: Spent 12.53s on a formula simplification. DAG size of input: 592 DAG size of output: 461 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:25:56,643 WARN L233 SmtUtils]: Spent 6.07s on a formula simplification. DAG size of input: 594 DAG size of output: 341 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:26:02,685 WARN L233 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 595 DAG size of output: 342 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:26:09,180 WARN L233 SmtUtils]: Spent 6.19s on a formula simplification. DAG size of input: 593 DAG size of output: 340 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:26:59,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1650983448] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:26:59,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:26:59,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [4, 4, 4] total 63 [2022-12-14 06:26:59,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588862264] [2022-12-14 06:26:59,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:26:59,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-12-14 06:26:59,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:26:59,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-12-14 06:26:59,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=3740, Unknown=0, NotChecked=0, Total=3906 [2022-12-14 06:26:59,576 INFO L87 Difference]: Start difference. First operand 405 states and 596 transitions. Second operand has 58 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 35 states have internal predecessors, (44), 18 states have call successors, (18), 12 states have call predecessors, (18), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 06:27:13,107 WARN L233 SmtUtils]: Spent 11.10s on a formula simplification. DAG size of input: 510 DAG size of output: 456 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:27:41,134 WARN L233 SmtUtils]: Spent 6.01s on a formula simplification. DAG size of input: 588 DAG size of output: 438 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:27:48,360 WARN L233 SmtUtils]: Spent 6.28s on a formula simplification. DAG size of input: 595 DAG size of output: 441 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:28:22,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:28:22,396 INFO L93 Difference]: Finished difference Result 952 states and 1457 transitions. [2022-12-14 06:28:22,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-12-14 06:28:22,397 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 35 states have internal predecessors, (44), 18 states have call successors, (18), 12 states have call predecessors, (18), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 84 [2022-12-14 06:28:22,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:28:22,399 INFO L225 Difference]: With dead ends: 952 [2022-12-14 06:28:22,399 INFO L226 Difference]: Without dead ends: 610 [2022-12-14 06:28:22,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 191 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1334 ImplicationChecksByTransitivity, 169.5s TimeCoverageRelationStatistics Valid=271, Invalid=6049, Unknown=0, NotChecked=0, Total=6320 [2022-12-14 06:28:22,402 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 200 mSDsluCounter, 6969 mSDsCounter, 0 mSdLazyCounter, 9096 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 7227 SdHoareTripleChecker+Invalid, 9126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 9096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:28:22,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 7227 Invalid, 9126 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [30 Valid, 9096 Invalid, 0 Unknown, 0 Unchecked, 27.0s Time] [2022-12-14 06:28:22,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-12-14 06:28:22,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 491. [2022-12-14 06:28:22,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 333 states have (on average 1.4384384384384385) internal successors, (479), 339 states have internal predecessors, (479), 121 states have call successors, (121), 39 states have call predecessors, (121), 36 states have return successors, (120), 114 states have call predecessors, (120), 120 states have call successors, (120) [2022-12-14 06:28:22,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 720 transitions. [2022-12-14 06:28:22,648 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 720 transitions. Word has length 84 [2022-12-14 06:28:22,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:28:22,649 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 720 transitions. [2022-12-14 06:28:22,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 35 states have internal predecessors, (44), 18 states have call successors, (18), 12 states have call predecessors, (18), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 06:28:22,649 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 720 transitions. [2022-12-14 06:28:22,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 06:28:22,650 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:28:22,650 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:28:22,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 06:28:22,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:28:22,852 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:28:22,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:28:22,853 INFO L85 PathProgramCache]: Analyzing trace with hash -918542475, now seen corresponding path program 1 times [2022-12-14 06:28:22,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:28:22,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050781376] [2022-12-14 06:28:22,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:28:22,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:28:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:28:22,981 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 06:28:22,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:28:22,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050781376] [2022-12-14 06:28:22,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050781376] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:28:22,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298914750] [2022-12-14 06:28:22,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:28:22,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:28:22,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:28:22,982 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:28:22,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 06:28:23,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:28:23,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:28:23,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:28:23,226 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 06:28:23,226 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:28:23,272 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 06:28:23,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298914750] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:28:23,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [692284749] [2022-12-14 06:28:23,276 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2022-12-14 06:28:23,276 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:28:23,277 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:28:23,277 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:28:23,277 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:29:02,695 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 06:29:02,974 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 236 for LOIs [2022-12-14 06:29:03,035 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 245 for LOIs [2022-12-14 06:29:03,097 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 235 for LOIs [2022-12-14 06:29:03,162 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 06:29:03,450 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:29:48,307 WARN L233 SmtUtils]: Spent 10.64s on a formula simplification. DAG size of input: 627 DAG size of output: 517 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:29:54,132 WARN L233 SmtUtils]: Spent 5.52s on a formula simplification. DAG size of input: 640 DAG size of output: 410 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:30:13,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [692284749] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:30:13,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:30:13,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 06:30:13,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844435353] [2022-12-14 06:30:13,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:30:13,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 06:30:13,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:30:13,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 06:30:13,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 06:30:13,053 INFO L87 Difference]: Start difference. First operand 491 states and 720 transitions. Second operand has 30 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2022-12-14 06:30:19,692 WARN L233 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 566 DAG size of output: 444 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:30:33,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:30:33,669 INFO L93 Difference]: Finished difference Result 1000 states and 1528 transitions. [2022-12-14 06:30:33,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 06:30:33,670 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) Word has length 87 [2022-12-14 06:30:33,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:30:33,673 INFO L225 Difference]: With dead ends: 1000 [2022-12-14 06:30:33,673 INFO L226 Difference]: Without dead ends: 658 [2022-12-14 06:30:33,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 77.3s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 06:30:33,675 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 171 mSDsluCounter, 3988 mSDsCounter, 0 mSdLazyCounter, 3685 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 4237 SdHoareTripleChecker+Invalid, 3695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:30:33,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 4237 Invalid, 3695 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3685 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2022-12-14 06:30:33,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2022-12-14 06:30:34,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 564. [2022-12-14 06:30:34,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 398 states have (on average 1.4623115577889447) internal successors, (582), 406 states have internal predecessors, (582), 126 states have call successors, (126), 42 states have call predecessors, (126), 39 states have return successors, (125), 117 states have call predecessors, (125), 125 states have call successors, (125) [2022-12-14 06:30:34,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 833 transitions. [2022-12-14 06:30:34,021 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 833 transitions. Word has length 87 [2022-12-14 06:30:34,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:30:34,022 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 833 transitions. [2022-12-14 06:30:34,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2022-12-14 06:30:34,022 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 833 transitions. [2022-12-14 06:30:34,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 06:30:34,023 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:30:34,023 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:30:34,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 06:30:34,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:30:34,224 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:30:34,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:30:34,224 INFO L85 PathProgramCache]: Analyzing trace with hash -999712362, now seen corresponding path program 1 times [2022-12-14 06:30:34,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:30:34,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115580027] [2022-12-14 06:30:34,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:30:34,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:30:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:30:34,334 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 06:30:34,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:30:34,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115580027] [2022-12-14 06:30:34,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115580027] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:30:34,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932609098] [2022-12-14 06:30:34,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:30:34,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:30:34,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:30:34,336 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:30:34,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 06:30:34,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:30:34,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 1089 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:30:34,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:30:34,583 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 06:30:34,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:30:34,635 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 06:30:34,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932609098] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:30:34,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1169818079] [2022-12-14 06:30:34,638 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2022-12-14 06:30:34,639 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:30:34,639 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:30:34,639 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:30:34,639 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:31:05,255 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 06:31:05,530 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 262 for LOIs [2022-12-14 06:31:07,136 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 236 for LOIs [2022-12-14 06:31:07,172 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 06:31:07,452 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 262 for LOIs [2022-12-14 06:31:09,958 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 228 for LOIs [2022-12-14 06:31:09,992 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 265 for LOIs [2022-12-14 06:31:18,013 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 246 for LOIs [2022-12-14 06:31:18,078 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 243 for LOIs [2022-12-14 06:31:18,118 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 485 for LOIs [2022-12-14 06:31:22,545 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 251 for LOIs [2022-12-14 06:31:22,588 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:32:05,895 WARN L233 SmtUtils]: Spent 6.43s on a formula simplification. DAG size of input: 598 DAG size of output: 345 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:32:19,469 WARN L233 SmtUtils]: Spent 13.29s on a formula simplification. DAG size of input: 600 DAG size of output: 469 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:32:26,213 WARN L233 SmtUtils]: Spent 6.45s on a formula simplification. DAG size of input: 601 DAG size of output: 348 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:32:32,205 WARN L233 SmtUtils]: Spent 5.68s on a formula simplification. DAG size of input: 599 DAG size of output: 346 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:33:35,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1169818079] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:33:35,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:33:35,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [61] imperfect sequences [4, 4, 4] total 67 [2022-12-14 06:33:35,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463187540] [2022-12-14 06:33:35,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:33:35,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-12-14 06:33:35,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:33:35,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-12-14 06:33:35,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=4226, Unknown=0, NotChecked=0, Total=4422 [2022-12-14 06:33:35,994 INFO L87 Difference]: Start difference. First operand 564 states and 833 transitions. Second operand has 62 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 40 states have internal predecessors, (49), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 06:34:27,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:34:27,750 INFO L93 Difference]: Finished difference Result 1098 states and 1670 transitions. [2022-12-14 06:34:27,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-12-14 06:34:27,751 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 40 states have internal predecessors, (49), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 86 [2022-12-14 06:34:27,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:34:27,753 INFO L225 Difference]: With dead ends: 1098 [2022-12-14 06:34:27,753 INFO L226 Difference]: Without dead ends: 721 [2022-12-14 06:34:27,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 193 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1558 ImplicationChecksByTransitivity, 157.0s TimeCoverageRelationStatistics Valid=326, Invalid=5994, Unknown=0, NotChecked=0, Total=6320 [2022-12-14 06:34:27,756 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 183 mSDsluCounter, 6953 mSDsCounter, 0 mSdLazyCounter, 9143 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 7216 SdHoareTripleChecker+Invalid, 9172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 9143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:34:27,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 7216 Invalid, 9172 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [29 Valid, 9143 Invalid, 0 Unknown, 0 Unchecked, 27.2s Time] [2022-12-14 06:34:27,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2022-12-14 06:34:28,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 612. [2022-12-14 06:34:28,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 446 states have (on average 1.4887892376681615) internal successors, (664), 454 states have internal predecessors, (664), 126 states have call successors, (126), 42 states have call predecessors, (126), 39 states have return successors, (125), 117 states have call predecessors, (125), 125 states have call successors, (125) [2022-12-14 06:34:28,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 915 transitions. [2022-12-14 06:34:28,211 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 915 transitions. Word has length 86 [2022-12-14 06:34:28,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:34:28,211 INFO L495 AbstractCegarLoop]: Abstraction has 612 states and 915 transitions. [2022-12-14 06:34:28,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 40 states have internal predecessors, (49), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 06:34:28,212 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 915 transitions. [2022-12-14 06:34:28,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-14 06:34:28,213 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:34:28,213 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:34:28,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 06:34:28,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:34:28,415 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:34:28,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:34:28,416 INFO L85 PathProgramCache]: Analyzing trace with hash -993534275, now seen corresponding path program 1 times [2022-12-14 06:34:28,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:34:28,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080179155] [2022-12-14 06:34:28,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:34:28,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:34:28,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:34:28,565 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 06:34:28,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:34:28,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080179155] [2022-12-14 06:34:28,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080179155] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:34:28,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:34:28,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:34:28,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976461190] [2022-12-14 06:34:28,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:34:28,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:34:28,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:34:28,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:34:28,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:34:28,567 INFO L87 Difference]: Start difference. First operand 612 states and 915 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 06:34:29,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:34:29,094 INFO L93 Difference]: Finished difference Result 773 states and 1108 transitions. [2022-12-14 06:34:29,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:34:29,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 89 [2022-12-14 06:34:29,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:34:29,100 INFO L225 Difference]: With dead ends: 773 [2022-12-14 06:34:29,100 INFO L226 Difference]: Without dead ends: 662 [2022-12-14 06:34:29,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 06:34:29,101 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 146 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:34:29,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 360 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:34:29,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2022-12-14 06:34:29,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 659. [2022-12-14 06:34:29,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 469 states have (on average 1.4690831556503199) internal successors, (689), 480 states have internal predecessors, (689), 140 states have call successors, (140), 54 states have call predecessors, (140), 49 states have return successors, (138), 127 states have call predecessors, (138), 138 states have call successors, (138) [2022-12-14 06:34:29,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 967 transitions. [2022-12-14 06:34:29,545 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 967 transitions. Word has length 89 [2022-12-14 06:34:29,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:34:29,545 INFO L495 AbstractCegarLoop]: Abstraction has 659 states and 967 transitions. [2022-12-14 06:34:29,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 06:34:29,545 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 967 transitions. [2022-12-14 06:34:29,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-12-14 06:34:29,547 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:34:29,547 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:34:29,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 06:34:29,547 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:34:29,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:34:29,548 INFO L85 PathProgramCache]: Analyzing trace with hash -197592809, now seen corresponding path program 1 times [2022-12-14 06:34:29,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:34:29,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154746018] [2022-12-14 06:34:29,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:34:29,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:34:29,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:34:29,911 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-12-14 06:34:29,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:34:29,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154746018] [2022-12-14 06:34:29,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154746018] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:34:29,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:34:29,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 06:34:29,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860427198] [2022-12-14 06:34:29,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:34:29,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 06:34:29,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:34:29,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 06:34:29,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-14 06:34:29,914 INFO L87 Difference]: Start difference. First operand 659 states and 967 transitions. Second operand has 12 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 6 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) [2022-12-14 06:34:31,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:34:31,382 INFO L93 Difference]: Finished difference Result 1176 states and 1672 transitions. [2022-12-14 06:34:31,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 06:34:31,382 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 6 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) Word has length 150 [2022-12-14 06:34:31,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:34:31,388 INFO L225 Difference]: With dead ends: 1176 [2022-12-14 06:34:31,388 INFO L226 Difference]: Without dead ends: 1025 [2022-12-14 06:34:31,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-12-14 06:34:31,390 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 386 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 1145 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:34:31,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 1791 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1145 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 06:34:31,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2022-12-14 06:34:31,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 1016. [2022-12-14 06:34:31,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 692 states have (on average 1.4552023121387283) internal successors, (1007), 708 states have internal predecessors, (1007), 240 states have call successors, (240), 90 states have call predecessors, (240), 83 states have return successors, (235), 223 states have call predecessors, (235), 235 states have call successors, (235) [2022-12-14 06:34:31,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1482 transitions. [2022-12-14 06:34:31,953 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1482 transitions. Word has length 150 [2022-12-14 06:34:31,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:34:31,953 INFO L495 AbstractCegarLoop]: Abstraction has 1016 states and 1482 transitions. [2022-12-14 06:34:31,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 6 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) [2022-12-14 06:34:31,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1482 transitions. [2022-12-14 06:34:31,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-12-14 06:34:31,955 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:34:31,956 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:34:31,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 06:34:31,956 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:34:31,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:34:31,956 INFO L85 PathProgramCache]: Analyzing trace with hash 482703193, now seen corresponding path program 1 times [2022-12-14 06:34:31,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:34:31,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527644620] [2022-12-14 06:34:31,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:34:31,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:34:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:34:32,050 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-14 06:34:32,050 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:34:32,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527644620] [2022-12-14 06:34:32,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527644620] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:34:32,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214620806] [2022-12-14 06:34:32,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:34:32,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:34:32,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:34:32,051 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:34:32,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff8ffbf-2574-47b8-9ac4-d648f25150c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 06:34:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:34:32,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 1499 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:34:32,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:34:32,294 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-12-14 06:34:32,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:34:32,384 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-14 06:34:32,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214620806] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:34:32,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1880962264] [2022-12-14 06:34:32,388 INFO L159 IcfgInterpreter]: Started Sifa with 96 locations of interest [2022-12-14 06:34:32,388 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:34:32,388 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:34:32,388 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:34:32,389 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:35:09,027 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 06:35:09,306 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 258 for LOIs [2022-12-14 06:35:11,469 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 232 for LOIs [2022-12-14 06:35:11,504 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 444 for LOIs [2022-12-14 06:35:11,780 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 258 for LOIs [2022-12-14 06:35:14,963 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 261 for LOIs [2022-12-14 06:35:34,031 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 246 for LOIs [2022-12-14 06:35:34,856 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 455 for LOIs [2022-12-14 06:35:35,397 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 242 for LOIs [2022-12-14 06:35:35,460 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 437 for LOIs [2022-12-14 06:35:36,007 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 476 for LOIs [2022-12-14 06:35:37,717 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 439 for LOIs [2022-12-14 06:35:38,274 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 247 for LOIs [2022-12-14 06:35:38,316 INFO L180 IcfgInterpreter]: Interpretation finished