./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6360accf87941df9e6bbc5dca5477ecef598d17cc597fc561012b4ee441ae425 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 01:50:16,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:50:16,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:50:16,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:50:16,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:50:16,994 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:50:16,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:50:17,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:50:17,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:50:17,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:50:17,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:50:17,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:50:17,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:50:17,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:50:17,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:50:17,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:50:17,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:50:17,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:50:17,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:50:17,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:50:17,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:50:17,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:50:17,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:50:17,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:50:17,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:50:17,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:50:17,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:50:17,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:50:17,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:50:17,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:50:17,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:50:17,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:50:17,070 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:50:17,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:50:17,076 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:50:17,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:50:17,077 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:50:17,077 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:50:17,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:50:17,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:50:17,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:50:17,081 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 01:50:17,130 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:50:17,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:50:17,132 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:50:17,132 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:50:17,134 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:50:17,135 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:50:17,135 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:50:17,135 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:50:17,135 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:50:17,136 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:50:17,137 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:50:17,137 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:50:17,137 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:50:17,138 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:50:17,138 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:50:17,138 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:50:17,138 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:50:17,139 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:50:17,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:50:17,140 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 01:50:17,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:50:17,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 01:50:17,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:50:17,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:50:17,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:50:17,143 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:50:17,143 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 01:50:17,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:50:17,143 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:50:17,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:50:17,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:50:17,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:50:17,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:50:17,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:50:17,145 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:50:17,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:50:17,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:50:17,146 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:50:17,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:50:17,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:50:17,147 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:50:17,147 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_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6360accf87941df9e6bbc5dca5477ecef598d17cc597fc561012b4ee441ae425 [2022-11-03 01:50:17,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:50:17,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:50:17,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:50:17,585 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:50:17,586 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:50:17,587 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/email_spec0_product34.cil.c [2022-11-03 01:50:17,685 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/data/3c298a9f3/dc0a937553b54c78839edc9f5bed6d3c/FLAGe49b696dc [2022-11-03 01:50:18,433 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:50:18,434 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/sv-benchmarks/c/product-lines/email_spec0_product34.cil.c [2022-11-03 01:50:18,457 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/data/3c298a9f3/dc0a937553b54c78839edc9f5bed6d3c/FLAGe49b696dc [2022-11-03 01:50:18,638 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/data/3c298a9f3/dc0a937553b54c78839edc9f5bed6d3c [2022-11-03 01:50:18,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:50:18,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:50:18,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:50:18,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:50:18,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:50:18,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:50:18" (1/1) ... [2022-11-03 01:50:18,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e8d9507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:18, skipping insertion in model container [2022-11-03 01:50:18,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:50:18" (1/1) ... [2022-11-03 01:50:18,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:50:18,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:50:19,276 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/sv-benchmarks/c/product-lines/email_spec0_product34.cil.c[12611,12624] [2022-11-03 01:50:19,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:50:19,720 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:50:19,773 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/sv-benchmarks/c/product-lines/email_spec0_product34.cil.c[12611,12624] [2022-11-03 01:50:19,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:50:19,911 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:50:19,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:19 WrapperNode [2022-11-03 01:50:19,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:50:19,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:50:19,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:50:19,914 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:50:19,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:19" (1/1) ... [2022-11-03 01:50:19,976 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:19" (1/1) ... [2022-11-03 01:50:20,043 INFO L138 Inliner]: procedures = 134, calls = 236, calls flagged for inlining = 62, calls inlined = 59, statements flattened = 1087 [2022-11-03 01:50:20,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:50:20,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:50:20,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:50:20,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:50:20,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:19" (1/1) ... [2022-11-03 01:50:20,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:19" (1/1) ... [2022-11-03 01:50:20,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:19" (1/1) ... [2022-11-03 01:50:20,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:19" (1/1) ... [2022-11-03 01:50:20,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:19" (1/1) ... [2022-11-03 01:50:20,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:19" (1/1) ... [2022-11-03 01:50:20,135 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:19" (1/1) ... [2022-11-03 01:50:20,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:19" (1/1) ... [2022-11-03 01:50:20,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:50:20,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:50:20,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:50:20,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:50:20,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:19" (1/1) ... [2022-11-03 01:50:20,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:50:20,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:50:20,201 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:50:20,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:50:20,262 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-03 01:50:20,262 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-03 01:50:20,262 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-03 01:50:20,263 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-03 01:50:20,263 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-03 01:50:20,263 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-03 01:50:20,263 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-03 01:50:20,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-03 01:50:20,264 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-03 01:50:20,264 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-03 01:50:20,264 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-03 01:50:20,265 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-03 01:50:20,265 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-03 01:50:20,265 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-03 01:50:20,265 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-03 01:50:20,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-03 01:50:20,265 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-03 01:50:20,266 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-03 01:50:20,266 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-03 01:50:20,266 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-03 01:50:20,266 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-03 01:50:20,267 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-03 01:50:20,267 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-03 01:50:20,267 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-03 01:50:20,267 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-03 01:50:20,268 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-03 01:50:20,268 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-03 01:50:20,268 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-03 01:50:20,268 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-03 01:50:20,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:50:20,269 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-03 01:50:20,269 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-03 01:50:20,269 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-03 01:50:20,269 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-03 01:50:20,270 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-03 01:50:20,270 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-03 01:50:20,270 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-03 01:50:20,270 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-03 01:50:20,273 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-03 01:50:20,273 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-03 01:50:20,274 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-03 01:50:20,274 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-03 01:50:20,274 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-11-03 01:50:20,274 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-11-03 01:50:20,275 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-03 01:50:20,275 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-03 01:50:20,275 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-03 01:50:20,275 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-03 01:50:20,276 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-03 01:50:20,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-03 01:50:20,278 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-03 01:50:20,278 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-03 01:50:20,278 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-03 01:50:20,278 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-03 01:50:20,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:50:20,279 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-03 01:50:20,279 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-03 01:50:20,280 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-03 01:50:20,280 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-03 01:50:20,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:50:20,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:50:20,645 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:50:20,648 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:50:21,898 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:50:22,731 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:50:22,731 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 01:50:22,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:50:22 BoogieIcfgContainer [2022-11-03 01:50:22,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:50:22,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:50:22,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:50:22,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:50:22,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:50:18" (1/3) ... [2022-11-03 01:50:22,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667f54cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:50:22, skipping insertion in model container [2022-11-03 01:50:22,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:19" (2/3) ... [2022-11-03 01:50:22,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667f54cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:50:22, skipping insertion in model container [2022-11-03 01:50:22,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:50:22" (3/3) ... [2022-11-03 01:50:22,751 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product34.cil.c [2022-11-03 01:50:22,775 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:50:22,775 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:50:22,861 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:50:22,869 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;@224164ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:50:22,870 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:50:22,875 INFO L276 IsEmpty]: Start isEmpty. Operand has 228 states, 128 states have (on average 1.2890625) internal successors, (165), 133 states have internal predecessors, (165), 70 states have call successors, (70), 28 states have call predecessors, (70), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2022-11-03 01:50:22,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-03 01:50:22,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:50:22,894 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-03 01:50:22,895 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:50:22,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:50:22,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1376470297, now seen corresponding path program 1 times [2022-11-03 01:50:22,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:50:22,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40492016] [2022-11-03 01:50:22,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:22,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:50:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:23,469 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 01:50:23,470 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:50:23,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40492016] [2022-11-03 01:50:23,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40492016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:50:23,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:50:23,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:50:23,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837512878] [2022-11-03 01:50:23,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:50:23,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 01:50:23,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:50:23,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 01:50:23,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:50:23,518 INFO L87 Difference]: Start difference. First operand has 228 states, 128 states have (on average 1.2890625) internal successors, (165), 133 states have internal predecessors, (165), 70 states have call successors, (70), 28 states have call predecessors, (70), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 01:50:23,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:50:23,742 INFO L93 Difference]: Finished difference Result 364 states and 481 transitions. [2022-11-03 01:50:23,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 01:50:23,746 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 99 [2022-11-03 01:50:23,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:50:23,767 INFO L225 Difference]: With dead ends: 364 [2022-11-03 01:50:23,768 INFO L226 Difference]: Without dead ends: 225 [2022-11-03 01:50:23,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:50:23,790 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:50:23,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 258 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:50:23,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-11-03 01:50:23,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2022-11-03 01:50:23,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 126 states have (on average 1.2619047619047619) internal successors, (159), 130 states have internal predecessors, (159), 70 states have call successors, (70), 28 states have call predecessors, (70), 28 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2022-11-03 01:50:23,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 298 transitions. [2022-11-03 01:50:23,869 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 298 transitions. Word has length 99 [2022-11-03 01:50:23,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:50:23,876 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 298 transitions. [2022-11-03 01:50:23,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 01:50:23,876 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 298 transitions. [2022-11-03 01:50:23,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-03 01:50:23,886 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:50:23,887 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-03 01:50:23,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:50:23,888 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:50:23,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:50:23,889 INFO L85 PathProgramCache]: Analyzing trace with hash 575419599, now seen corresponding path program 1 times [2022-11-03 01:50:23,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:50:23,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435107306] [2022-11-03 01:50:23,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:23,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:50:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:24,208 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 01:50:24,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:50:24,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435107306] [2022-11-03 01:50:24,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435107306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:50:24,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:50:24,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:50:24,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704154807] [2022-11-03 01:50:24,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:50:24,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:50:24,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:50:24,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:50:24,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:50:24,213 INFO L87 Difference]: Start difference. First operand 225 states and 298 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 01:50:24,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:50:24,437 INFO L93 Difference]: Finished difference Result 360 states and 466 transitions. [2022-11-03 01:50:24,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:50:24,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 100 [2022-11-03 01:50:24,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:50:24,445 INFO L225 Difference]: With dead ends: 360 [2022-11-03 01:50:24,446 INFO L226 Difference]: Without dead ends: 227 [2022-11-03 01:50:24,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:50:24,452 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 0 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:50:24,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 509 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:50:24,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-11-03 01:50:24,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2022-11-03 01:50:24,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 128 states have (on average 1.2578125) internal successors, (161), 132 states have internal predecessors, (161), 70 states have call successors, (70), 28 states have call predecessors, (70), 28 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2022-11-03 01:50:24,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 300 transitions. [2022-11-03 01:50:24,499 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 300 transitions. Word has length 100 [2022-11-03 01:50:24,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:50:24,502 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 300 transitions. [2022-11-03 01:50:24,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 01:50:24,502 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 300 transitions. [2022-11-03 01:50:24,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-03 01:50:24,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:50:24,513 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-03 01:50:24,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:50:24,513 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:50:24,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:50:24,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1100774068, now seen corresponding path program 1 times [2022-11-03 01:50:24,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:50:24,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390348600] [2022-11-03 01:50:24,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:24,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:50:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:24,749 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-03 01:50:24,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:50:24,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390348600] [2022-11-03 01:50:24,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390348600] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:50:24,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:50:24,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:50:24,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830749967] [2022-11-03 01:50:24,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:50:24,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:50:24,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:50:24,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:50:24,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:50:24,753 INFO L87 Difference]: Start difference. First operand 227 states and 300 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 01:50:24,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:50:24,952 INFO L93 Difference]: Finished difference Result 489 states and 667 transitions. [2022-11-03 01:50:24,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:50:24,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 116 [2022-11-03 01:50:24,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:50:24,955 INFO L225 Difference]: With dead ends: 489 [2022-11-03 01:50:24,955 INFO L226 Difference]: Without dead ends: 280 [2022-11-03 01:50:24,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:50:24,958 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 59 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:50:24,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 526 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:50:24,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2022-11-03 01:50:25,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 275. [2022-11-03 01:50:25,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 162 states have (on average 1.3333333333333333) internal successors, (216), 166 states have internal predecessors, (216), 84 states have call successors, (84), 28 states have call predecessors, (84), 28 states have return successors, (83), 82 states have call predecessors, (83), 83 states have call successors, (83) [2022-11-03 01:50:25,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 383 transitions. [2022-11-03 01:50:25,012 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 383 transitions. Word has length 116 [2022-11-03 01:50:25,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:50:25,012 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 383 transitions. [2022-11-03 01:50:25,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 01:50:25,013 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 383 transitions. [2022-11-03 01:50:25,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-03 01:50:25,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:50:25,016 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-03 01:50:25,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:50:25,017 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:50:25,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:50:25,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1573589522, now seen corresponding path program 1 times [2022-11-03 01:50:25,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:50:25,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030965299] [2022-11-03 01:50:25,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:25,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:50:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:25,293 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-03 01:50:25,294 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:50:25,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030965299] [2022-11-03 01:50:25,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030965299] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:50:25,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55908834] [2022-11-03 01:50:25,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:25,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:50:25,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:50:25,298 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:50:25,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:50:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:25,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 1296 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:50:25,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:50:25,923 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-03 01:50:25,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:50:26,135 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-03 01:50:26,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55908834] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:50:26,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1436454313] [2022-11-03 01:50:26,163 INFO L159 IcfgInterpreter]: Started Sifa with 90 locations of interest [2022-11-03 01:50:26,163 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:50:26,168 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:50:26,175 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:50:26,176 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:50:58,744 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-03 01:50:59,216 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 264 for LOIs [2022-11-03 01:51:02,426 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 01:51:02,812 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 266 for LOIs [2022-11-03 01:51:07,117 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 226 for LOIs [2022-11-03 01:51:07,195 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 234 for LOIs [2022-11-03 01:51:07,254 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 234 for LOIs [2022-11-03 01:51:07,301 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 251 for LOIs [2022-11-03 01:51:07,371 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:51:23,884 WARN L234 SmtUtils]: Spent 6.84s on a formula simplification. DAG size of input: 444 DAG size of output: 244 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:51:30,993 WARN L234 SmtUtils]: Spent 6.91s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:51:46,911 WARN L234 SmtUtils]: Spent 6.72s on a formula simplification. DAG size of input: 464 DAG size of output: 319 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:52:00,118 WARN L234 SmtUtils]: Spent 7.06s on a formula simplification. DAG size of input: 486 DAG size of output: 317 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:52:12,395 WARN L234 SmtUtils]: Spent 5.85s on a formula simplification. DAG size of input: 508 DAG size of output: 285 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:52:28,739 WARN L234 SmtUtils]: Spent 14.60s on a formula simplification. DAG size of input: 580 DAG size of output: 329 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:53:12,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1436454313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:53:12,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:53:12,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [4, 4, 4] total 47 [2022-11-03 01:53:12,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955218508] [2022-11-03 01:53:12,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:53:12,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-11-03 01:53:12,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:12,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-11-03 01:53:12,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=2032, Unknown=0, NotChecked=0, Total=2162 [2022-11-03 01:53:12,473 INFO L87 Difference]: Start difference. First operand 275 states and 383 transitions. Second operand has 42 states, 28 states have (on average 1.9285714285714286) internal successors, (54), 26 states have internal predecessors, (54), 13 states have call successors, (25), 9 states have call predecessors, (25), 7 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22) [2022-11-03 01:53:52,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:52,795 INFO L93 Difference]: Finished difference Result 620 states and 897 transitions. [2022-11-03 01:53:52,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-03 01:53:52,796 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 28 states have (on average 1.9285714285714286) internal successors, (54), 26 states have internal predecessors, (54), 13 states have call successors, (25), 9 states have call predecessors, (25), 7 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22) Word has length 117 [2022-11-03 01:53:52,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:52,800 INFO L225 Difference]: With dead ends: 620 [2022-11-03 01:53:52,800 INFO L226 Difference]: Without dead ends: 363 [2022-11-03 01:53:52,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 137.0s TimeCoverageRelationStatistics Valid=156, Invalid=2394, Unknown=0, NotChecked=0, Total=2550 [2022-11-03 01:53:52,804 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 109 mSDsluCounter, 5738 mSDsCounter, 0 mSdLazyCounter, 5822 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 5822 SdHoareTripleChecker+Invalid, 5845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 5822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.8s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:52,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 5822 Invalid, 5845 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [23 Valid, 5822 Invalid, 0 Unknown, 0 Unchecked, 27.8s Time] [2022-11-03 01:53:52,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2022-11-03 01:53:52,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 322. [2022-11-03 01:53:52,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 198 states have (on average 1.3383838383838385) internal successors, (265), 202 states have internal predecessors, (265), 90 states have call successors, (90), 35 states have call predecessors, (90), 33 states have return successors, (89), 86 states have call predecessors, (89), 89 states have call successors, (89) [2022-11-03 01:53:52,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 444 transitions. [2022-11-03 01:53:52,945 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 444 transitions. Word has length 117 [2022-11-03 01:53:52,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:52,946 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 444 transitions. [2022-11-03 01:53:52,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 28 states have (on average 1.9285714285714286) internal successors, (54), 26 states have internal predecessors, (54), 13 states have call successors, (25), 9 states have call predecessors, (25), 7 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22) [2022-11-03 01:53:52,947 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 444 transitions. [2022-11-03 01:53:52,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-03 01:53:52,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:52,951 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 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, 1, 1] [2022-11-03 01:53:52,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-03 01:53:53,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:53:53,166 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:53:53,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:53,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1930177145, now seen corresponding path program 1 times [2022-11-03 01:53:53,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:53,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152743353] [2022-11-03 01:53:53,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:53,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:53,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:53,311 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-03 01:53:53,312 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:53,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152743353] [2022-11-03 01:53:53,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152743353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:53:53,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:53:53,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:53:53,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569510228] [2022-11-03 01:53:53,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:53:53,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:53:53,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:53,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:53:53,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:53:53,316 INFO L87 Difference]: Start difference. First operand 322 states and 444 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-03 01:53:53,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:53,678 INFO L93 Difference]: Finished difference Result 746 states and 1068 transitions. [2022-11-03 01:53:53,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:53:53,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 122 [2022-11-03 01:53:53,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:53,684 INFO L225 Difference]: With dead ends: 746 [2022-11-03 01:53:53,684 INFO L226 Difference]: Without dead ends: 450 [2022-11-03 01:53:53,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:53:53,686 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 57 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:53,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 530 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:53:53,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-11-03 01:53:53,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 443. [2022-11-03 01:53:53,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 288 states have (on average 1.40625) internal successors, (405), 292 states have internal predecessors, (405), 121 states have call successors, (121), 35 states have call predecessors, (121), 33 states have return successors, (120), 117 states have call predecessors, (120), 120 states have call successors, (120) [2022-11-03 01:53:53,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 646 transitions. [2022-11-03 01:53:53,887 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 646 transitions. Word has length 122 [2022-11-03 01:53:53,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:53,888 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 646 transitions. [2022-11-03 01:53:53,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-03 01:53:53,889 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 646 transitions. [2022-11-03 01:53:53,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-03 01:53:53,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:53,893 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-03 01:53:53,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:53:53,894 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:53:53,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:53,894 INFO L85 PathProgramCache]: Analyzing trace with hash -2069569831, now seen corresponding path program 1 times [2022-11-03 01:53:53,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:53,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485149873] [2022-11-03 01:53:53,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:53,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:53,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:54,153 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 01:53:54,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:54,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485149873] [2022-11-03 01:53:54,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485149873] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:53:54,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394924103] [2022-11-03 01:53:54,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:54,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:53:54,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:53:54,156 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:53:54,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 01:53:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:54,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:53:54,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:53:54,612 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 01:53:54,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:53:54,712 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 01:53:54,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394924103] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:53:54,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [58451738] [2022-11-03 01:53:54,718 INFO L159 IcfgInterpreter]: Started Sifa with 83 locations of interest [2022-11-03 01:53:54,718 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:53:54,719 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:53:54,720 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:53:54,720 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:54:21,682 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-03 01:54:22,081 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 264 for LOIs [2022-11-03 01:54:24,361 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 01:54:24,996 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 264 for LOIs [2022-11-03 01:54:28,948 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 274 for LOIs [2022-11-03 01:54:54,085 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 455 for LOIs [2022-11-03 01:54:54,899 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 248 for LOIs [2022-11-03 01:54:55,751 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 248 for LOIs [2022-11-03 01:54:55,802 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 246 for LOIs [2022-11-03 01:54:55,889 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 434 for LOIs [2022-11-03 01:54:56,705 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 234 for LOIs [2022-11-03 01:54:56,750 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 476 for LOIs [2022-11-03 01:54:59,221 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 251 for LOIs [2022-11-03 01:54:59,278 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:55:15,963 WARN L234 SmtUtils]: Spent 6.96s on a formula simplification. DAG size of input: 444 DAG size of output: 244 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:55:23,408 WARN L234 SmtUtils]: Spent 7.26s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:55:40,941 WARN L234 SmtUtils]: Spent 7.36s on a formula simplification. DAG size of input: 464 DAG size of output: 319 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:55:55,098 WARN L234 SmtUtils]: Spent 7.47s on a formula simplification. DAG size of input: 486 DAG size of output: 317 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:56:07,813 WARN L234 SmtUtils]: Spent 6.02s on a formula simplification. DAG size of input: 508 DAG size of output: 285 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:56:24,347 WARN L234 SmtUtils]: Spent 14.82s on a formula simplification. DAG size of input: 580 DAG size of output: 329 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:56:46,825 WARN L234 SmtUtils]: Spent 9.44s on a formula simplification. DAG size of input: 476 DAG size of output: 276 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:57:20,466 WARN L234 SmtUtils]: Spent 9.18s on a formula simplification. DAG size of input: 455 DAG size of output: 266 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:57:32,699 WARN L234 SmtUtils]: Spent 10.03s on a formula simplification. DAG size of input: 481 DAG size of output: 282 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:58:07,554 WARN L234 SmtUtils]: Spent 15.77s on a formula simplification. DAG size of input: 434 DAG size of output: 341 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:58:27,180 WARN L234 SmtUtils]: Spent 16.37s on a formula simplification. DAG size of input: 453 DAG size of output: 349 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:58:44,406 WARN L234 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 476 DAG size of output: 327 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:58:51,094 WARN L234 SmtUtils]: Spent 5.68s on a formula simplification. DAG size of input: 478 DAG size of output: 329 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:58:58,956 WARN L234 SmtUtils]: Spent 5.87s on a formula simplification. DAG size of input: 520 DAG size of output: 352 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:59:33,417 WARN L234 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 565 DAG size of output: 379 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:59:58,900 WARN L234 SmtUtils]: Spent 9.77s on a formula simplification. DAG size of input: 577 DAG size of output: 447 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:00:09,710 WARN L234 SmtUtils]: Spent 9.06s on a formula simplification. DAG size of input: 577 DAG size of output: 396 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:00:19,748 WARN L234 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 446 DAG size of output: 426 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:00:19,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [58451738] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:00:19,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:00:19,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [69] imperfect sequences [4, 4, 4] total 75 [2022-11-03 02:00:19,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417497553] [2022-11-03 02:00:19,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:00:19,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-11-03 02:00:19,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:00:19,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-11-03 02:00:19,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=5307, Unknown=0, NotChecked=0, Total=5550 [2022-11-03 02:00:19,763 INFO L87 Difference]: Start difference. First operand 443 states and 646 transitions. Second operand has 70 states, 46 states have (on average 1.108695652173913) internal successors, (51), 43 states have internal predecessors, (51), 21 states have call successors, (22), 13 states have call predecessors, (22), 10 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2022-11-03 02:01:32,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:01:32,215 INFO L93 Difference]: Finished difference Result 675 states and 963 transitions. [2022-11-03 02:01:32,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-11-03 02:01:32,216 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 46 states have (on average 1.108695652173913) internal successors, (51), 43 states have internal predecessors, (51), 21 states have call successors, (22), 13 states have call predecessors, (22), 10 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) Word has length 106 [2022-11-03 02:01:32,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:01:32,220 INFO L225 Difference]: With dead ends: 675 [2022-11-03 02:01:32,220 INFO L226 Difference]: Without dead ends: 549 [2022-11-03 02:01:32,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 244 SyntacticMatches, 3 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1776 ImplicationChecksByTransitivity, 349.5s TimeCoverageRelationStatistics Valid=303, Invalid=6669, Unknown=0, NotChecked=0, Total=6972 [2022-11-03 02:01:32,224 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 359 mSDsluCounter, 7299 mSDsCounter, 0 mSdLazyCounter, 9988 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 7250 SdHoareTripleChecker+Invalid, 10069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 9988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:01:32,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 7250 Invalid, 10069 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [81 Valid, 9988 Invalid, 0 Unknown, 0 Unchecked, 42.5s Time] [2022-11-03 02:01:32,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-11-03 02:01:32,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 502. [2022-11-03 02:01:32,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 325 states have (on average 1.3846153846153846) internal successors, (450), 330 states have internal predecessors, (450), 136 states have call successors, (136), 42 states have call predecessors, (136), 40 states have return successors, (136), 131 states have call predecessors, (136), 135 states have call successors, (136) [2022-11-03 02:01:32,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 722 transitions. [2022-11-03 02:01:32,417 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 722 transitions. Word has length 106 [2022-11-03 02:01:32,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:01:32,417 INFO L495 AbstractCegarLoop]: Abstraction has 502 states and 722 transitions. [2022-11-03 02:01:32,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 46 states have (on average 1.108695652173913) internal successors, (51), 43 states have internal predecessors, (51), 21 states have call successors, (22), 13 states have call predecessors, (22), 10 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2022-11-03 02:01:32,418 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 722 transitions. [2022-11-03 02:01:32,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-03 02:01:32,421 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:01:32,421 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 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, 1, 1, 1] [2022-11-03 02:01:32,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-03 02:01:32,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:01:32,638 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:01:32,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:01:32,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1194377858, now seen corresponding path program 1 times [2022-11-03 02:01:32,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:01:32,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515259893] [2022-11-03 02:01:32,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:01:32,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:01:32,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:01:32,841 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-03 02:01:32,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:01:32,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515259893] [2022-11-03 02:01:32,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515259893] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:01:32,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110433493] [2022-11-03 02:01:32,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:01:32,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:01:32,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:01:32,843 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:01:32,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d84efd-b005-488c-a3c3-99055eed3f8f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:01:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:01:33,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 1326 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:01:33,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:01:33,231 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-03 02:01:33,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:01:33,353 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-03 02:01:33,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110433493] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:01:33,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1177119305] [2022-11-03 02:01:33,357 INFO L159 IcfgInterpreter]: Started Sifa with 94 locations of interest [2022-11-03 02:01:33,357 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:01:33,358 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:01:33,358 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:01:33,358 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:02:06,542 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-03 02:02:06,906 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 260 for LOIs [2022-11-03 02:02:09,168 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-11-03 02:02:09,558 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 260 for LOIs [2022-11-03 02:02:12,551 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 220 for LOIs [2022-11-03 02:02:12,584 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 230 for LOIs [2022-11-03 02:02:12,618 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 230 for LOIs [2022-11-03 02:02:12,652 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 247 for LOIs [2022-11-03 02:02:12,697 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:02:26,428 WARN L234 SmtUtils]: Spent 5.95s on a formula simplification. DAG size of input: 444 DAG size of output: 244 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:02:32,833 WARN L234 SmtUtils]: Spent 6.21s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:02:48,559 WARN L234 SmtUtils]: Spent 5.87s on a formula simplification. DAG size of input: 464 DAG size of output: 319 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)