./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS --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 f84999f0f81e33d8d10765588f1ef0eb7f6e4b27122985f82c092211345428dc --- 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-8393723 [2022-11-19 07:18:18,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:18:18,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:18:18,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:18:18,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:18:18,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:18:18,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:18:18,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:18:18,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:18:18,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:18:18,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:18:18,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:18:18,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:18:18,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:18:18,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:18:18,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:18:18,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:18:18,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:18:18,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:18:18,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:18:18,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:18:18,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:18:18,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:18:18,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:18:18,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:18:18,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:18:18,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:18:18,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:18:18,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:18:18,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:18:18,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:18:18,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:18:18,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:18:18,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:18:18,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:18:18,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:18:18,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:18:18,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:18:18,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:18:18,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:18:18,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:18:18,208 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:18:18,257 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:18:18,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:18:18,258 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:18:18,258 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:18:18,260 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:18:18,260 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:18:18,260 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:18:18,261 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:18:18,261 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:18:18,261 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:18:18,262 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:18:18,263 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:18:18,263 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:18:18,263 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:18:18,263 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:18:18,264 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:18:18,264 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:18:18,264 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:18:18,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:18:18,265 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:18:18,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:18:18,266 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:18:18,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:18:18,268 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:18:18,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:18:18,268 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:18:18,268 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:18:18,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:18:18,269 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:18:18,269 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:18:18,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:18:18,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:18:18,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:18:18,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:18:18,271 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:18:18,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:18:18,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:18:18,271 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:18:18,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:18:18,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:18:18,272 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:18:18,272 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_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f84999f0f81e33d8d10765588f1ef0eb7f6e4b27122985f82c092211345428dc [2022-11-19 07:18:18,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:18:18,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:18:18,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:18:18,636 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:18:18,637 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:18:18,638 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/email_spec9_product34.cil.c [2022-11-19 07:18:18,738 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/data/e212acec1/3f1efc8f38ca439ca6231c23e63546bf/FLAG28807da90 [2022-11-19 07:18:19,387 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:18:19,388 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/sv-benchmarks/c/product-lines/email_spec9_product34.cil.c [2022-11-19 07:18:19,435 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/data/e212acec1/3f1efc8f38ca439ca6231c23e63546bf/FLAG28807da90 [2022-11-19 07:18:19,600 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/data/e212acec1/3f1efc8f38ca439ca6231c23e63546bf [2022-11-19 07:18:19,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:18:19,605 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:18:19,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:18:19,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:18:19,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:18:19,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:18:19" (1/1) ... [2022-11-19 07:18:19,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7da02b19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:19, skipping insertion in model container [2022-11-19 07:18:19,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:18:19" (1/1) ... [2022-11-19 07:18:19,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:18:19,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:18:19,985 WARN L234 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_0fcee56c-02b9-43ee-b3a0-995f0951d79b/sv-benchmarks/c/product-lines/email_spec9_product34.cil.c[8301,8314] [2022-11-19 07:18:20,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:18:20,435 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:18:20,477 WARN L234 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_0fcee56c-02b9-43ee-b3a0-995f0951d79b/sv-benchmarks/c/product-lines/email_spec9_product34.cil.c[8301,8314] [2022-11-19 07:18:20,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:18:20,698 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:18:20,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:20 WrapperNode [2022-11-19 07:18:20,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:18:20,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:18:20,701 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:18:20,701 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:18:20,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:20" (1/1) ... [2022-11-19 07:18:20,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:20" (1/1) ... [2022-11-19 07:18:20,842 INFO L138 Inliner]: procedures = 135, calls = 242, calls flagged for inlining = 63, calls inlined = 60, statements flattened = 1110 [2022-11-19 07:18:20,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:18:20,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:18:20,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:18:20,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:18:20,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:20" (1/1) ... [2022-11-19 07:18:20,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:20" (1/1) ... [2022-11-19 07:18:20,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:20" (1/1) ... [2022-11-19 07:18:20,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:20" (1/1) ... [2022-11-19 07:18:20,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:20" (1/1) ... [2022-11-19 07:18:20,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:20" (1/1) ... [2022-11-19 07:18:20,948 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:20" (1/1) ... [2022-11-19 07:18:20,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:20" (1/1) ... [2022-11-19 07:18:20,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:18:20,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:18:20,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:18:20,972 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:18:20,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:20" (1/1) ... [2022-11-19 07:18:20,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:18:20,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:18:21,008 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:18:21,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:18:21,066 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-19 07:18:21,066 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-19 07:18:21,066 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-19 07:18:21,066 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-19 07:18:21,067 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-19 07:18:21,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-19 07:18:21,067 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-19 07:18:21,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-19 07:18:21,068 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-19 07:18:21,090 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-19 07:18:21,090 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-19 07:18:21,091 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-19 07:18:21,091 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-19 07:18:21,091 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-19 07:18:21,091 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-19 07:18:21,091 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-19 07:18:21,092 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-19 07:18:21,092 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-19 07:18:21,092 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-19 07:18:21,092 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-19 07:18:21,094 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-19 07:18:21,094 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-19 07:18:21,094 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-19 07:18:21,094 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-19 07:18:21,094 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-19 07:18:21,095 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-19 07:18:21,095 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-19 07:18:21,095 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-19 07:18:21,096 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-19 07:18:21,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:18:21,096 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-19 07:18:21,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-19 07:18:21,096 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-19 07:18:21,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-19 07:18:21,097 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-19 07:18:21,097 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-19 07:18:21,097 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-19 07:18:21,097 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-19 07:18:21,098 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-19 07:18:21,098 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-19 07:18:21,098 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-19 07:18:21,098 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-19 07:18:21,099 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-11-19 07:18:21,099 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-11-19 07:18:21,099 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-19 07:18:21,100 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-19 07:18:21,101 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-19 07:18:21,102 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-19 07:18:21,103 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-19 07:18:21,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-19 07:18:21,103 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-19 07:18:21,103 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-19 07:18:21,104 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-19 07:18:21,104 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-19 07:18:21,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:18:21,104 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-19 07:18:21,104 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-19 07:18:21,104 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-19 07:18:21,104 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-19 07:18:21,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:18:21,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:18:21,462 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:18:21,465 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:18:22,889 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:18:23,728 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:18:23,728 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:18:23,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:18:23 BoogieIcfgContainer [2022-11-19 07:18:23,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:18:23,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:18:23,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:18:23,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:18:23,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:18:19" (1/3) ... [2022-11-19 07:18:23,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6a23b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:18:23, skipping insertion in model container [2022-11-19 07:18:23,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:20" (2/3) ... [2022-11-19 07:18:23,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6a23b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:18:23, skipping insertion in model container [2022-11-19 07:18:23,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:18:23" (3/3) ... [2022-11-19 07:18:23,745 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product34.cil.c [2022-11-19 07:18:23,770 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:18:23,770 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:18:23,881 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:18:23,894 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;@2d3bd7d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:18:23,894 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:18:23,902 INFO L276 IsEmpty]: Start isEmpty. Operand has 231 states, 130 states have (on average 1.2923076923076924) internal successors, (168), 135 states have internal predecessors, (168), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-19 07:18:23,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-19 07:18:23,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:23,926 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:18:23,929 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:18:23,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:23,939 INFO L85 PathProgramCache]: Analyzing trace with hash -537761224, now seen corresponding path program 1 times [2022-11-19 07:18:23,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:23,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480105397] [2022-11-19 07:18:23,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:23,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:24,416 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 07:18:24,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:18:24,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480105397] [2022-11-19 07:18:24,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480105397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:18:24,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:18:24,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:18:24,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604854277] [2022-11-19 07:18:24,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:18:24,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:18:24,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:18:24,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:18:24,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:18:24,461 INFO L87 Difference]: Start difference. First operand has 231 states, 130 states have (on average 1.2923076923076924) internal successors, (168), 135 states have internal predecessors, (168), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 07:18:24,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:18:24,687 INFO L93 Difference]: Finished difference Result 370 states and 491 transitions. [2022-11-19 07:18:24,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:18:24,691 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2022-11-19 07:18:24,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:18:24,706 INFO L225 Difference]: With dead ends: 370 [2022-11-19 07:18:24,707 INFO L226 Difference]: Without dead ends: 228 [2022-11-19 07:18:24,713 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 [2022-11-19 07:18:24,717 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:18:24,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 262 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:18:24,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-11-19 07:18:24,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2022-11-19 07:18:24,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 128 states have (on average 1.265625) internal successors, (162), 132 states have internal predecessors, (162), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2022-11-19 07:18:24,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 303 transitions. [2022-11-19 07:18:24,797 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 303 transitions. Word has length 71 [2022-11-19 07:18:24,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:18:24,799 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 303 transitions. [2022-11-19 07:18:24,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 07:18:24,800 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 303 transitions. [2022-11-19 07:18:24,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-19 07:18:24,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:24,805 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:18:24,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:18:24,805 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:18:24,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:24,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1731272367, now seen corresponding path program 1 times [2022-11-19 07:18:24,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:24,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631317323] [2022-11-19 07:18:24,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:24,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:24,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:25,136 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 07:18:25,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:18:25,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631317323] [2022-11-19 07:18:25,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631317323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:18:25,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:18:25,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:18:25,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374923836] [2022-11-19 07:18:25,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:18:25,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:18:25,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:18:25,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:18:25,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:18:25,142 INFO L87 Difference]: Start difference. First operand 228 states and 303 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 07:18:25,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:18:25,355 INFO L93 Difference]: Finished difference Result 366 states and 476 transitions. [2022-11-19 07:18:25,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:18:25,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2022-11-19 07:18:25,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:18:25,360 INFO L225 Difference]: With dead ends: 366 [2022-11-19 07:18:25,360 INFO L226 Difference]: Without dead ends: 230 [2022-11-19 07:18:25,361 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 [2022-11-19 07:18:25,363 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 0 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:18:25,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 517 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:18:25,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-11-19 07:18:25,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2022-11-19 07:18:25,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 130 states have (on average 1.2615384615384615) internal successors, (164), 134 states have internal predecessors, (164), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2022-11-19 07:18:25,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 305 transitions. [2022-11-19 07:18:25,393 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 305 transitions. Word has length 72 [2022-11-19 07:18:25,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:18:25,393 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 305 transitions. [2022-11-19 07:18:25,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 07:18:25,394 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 305 transitions. [2022-11-19 07:18:25,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-19 07:18:25,430 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:25,430 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:18:25,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:18:25,431 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:18:25,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:25,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1060971252, now seen corresponding path program 1 times [2022-11-19 07:18:25,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:25,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810823693] [2022-11-19 07:18:25,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:25,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:25,709 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 07:18:25,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:18:25,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810823693] [2022-11-19 07:18:25,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810823693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:18:25,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:18:25,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:18:25,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258114037] [2022-11-19 07:18:25,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:18:25,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:18:25,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:18:25,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:18:25,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:18:25,719 INFO L87 Difference]: Start difference. First operand 230 states and 305 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 07:18:25,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:18:25,941 INFO L93 Difference]: Finished difference Result 495 states and 677 transitions. [2022-11-19 07:18:25,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:18:25,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2022-11-19 07:18:25,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:18:25,950 INFO L225 Difference]: With dead ends: 495 [2022-11-19 07:18:25,950 INFO L226 Difference]: Without dead ends: 283 [2022-11-19 07:18:25,952 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 [2022-11-19 07:18:25,962 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 59 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:18:25,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 527 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:18:25,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-11-19 07:18:26,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 278. [2022-11-19 07:18:26,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 164 states have (on average 1.3353658536585367) internal successors, (219), 168 states have internal predecessors, (219), 85 states have call successors, (85), 28 states have call predecessors, (85), 28 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2022-11-19 07:18:26,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 388 transitions. [2022-11-19 07:18:26,014 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 388 transitions. Word has length 77 [2022-11-19 07:18:26,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:18:26,017 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 388 transitions. [2022-11-19 07:18:26,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 07:18:26,017 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 388 transitions. [2022-11-19 07:18:26,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-19 07:18:26,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:26,027 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:18:26,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:18:26,028 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:18:26,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:26,029 INFO L85 PathProgramCache]: Analyzing trace with hash -2008632610, now seen corresponding path program 1 times [2022-11-19 07:18:26,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:26,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764615842] [2022-11-19 07:18:26,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:26,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:26,337 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 07:18:26,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:18:26,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764615842] [2022-11-19 07:18:26,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764615842] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:18:26,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289582447] [2022-11-19 07:18:26,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:26,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:18:26,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:18:26,344 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:18:26,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:18:26,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:26,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 1103 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:18:26,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:18:26,877 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 07:18:26,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:18:26,999 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 07:18:27,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289582447] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:18:27,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1502286201] [2022-11-19 07:18:27,027 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-11-19 07:18:27,027 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:18:27,031 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:18:27,038 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:18:27,039 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:19:04,033 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-19 07:19:04,453 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 268 for LOIs [2022-11-19 07:19:06,896 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 236 for LOIs [2022-11-19 07:19:06,967 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-11-19 07:19:07,365 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 270 for LOIs [2022-11-19 07:19:11,344 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 226 for LOIs [2022-11-19 07:19:11,414 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 279 for LOIs [2022-11-19 07:19:19,107 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 249 for LOIs [2022-11-19 07:19:19,209 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 246 for LOIs [2022-11-19 07:19:19,259 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 480 for LOIs [2022-11-19 07:19:21,233 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 254 for LOIs [2022-11-19 07:19:21,288 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:19:37,916 WARN L233 SmtUtils]: Spent 6.66s on a formula simplification. DAG size of input: 443 DAG size of output: 327 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:19:45,903 WARN L233 SmtUtils]: Spent 7.87s on a formula simplification. DAG size of input: 466 DAG size of output: 347 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:19:54,474 WARN L233 SmtUtils]: Spent 7.52s on a formula simplification. DAG size of input: 448 DAG size of output: 305 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:20:02,402 WARN L233 SmtUtils]: Spent 7.76s on a formula simplification. DAG size of input: 471 DAG size of output: 325 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:20:08,107 WARN L233 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 468 DAG size of output: 277 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:20:19,720 WARN L233 SmtUtils]: Spent 6.34s on a formula simplification. DAG size of input: 490 DAG size of output: 297 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:20:25,286 WARN L233 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 502 DAG size of output: 310 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:20:32,474 WARN L233 SmtUtils]: Spent 5.80s on a formula simplification. DAG size of input: 512 DAG size of output: 299 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:20:39,177 WARN L233 SmtUtils]: Spent 6.37s on a formula simplification. DAG size of input: 564 DAG size of output: 336 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:20:45,914 WARN L233 SmtUtils]: Spent 6.39s on a formula simplification. DAG size of input: 566 DAG size of output: 338 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:20:51,572 WARN L233 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 570 DAG size of output: 326 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:21:01,625 WARN L233 SmtUtils]: Spent 9.72s on a formula simplification. DAG size of input: 567 DAG size of output: 420 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:21:11,726 WARN L233 SmtUtils]: Spent 9.74s on a formula simplification. DAG size of input: 573 DAG size of output: 426 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:21:22,876 WARN L233 SmtUtils]: Spent 6.91s on a formula simplification. DAG size of input: 480 DAG size of output: 280 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:22:31,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1502286201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:31,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:22:31,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [4, 4, 4] total 59 [2022-11-19 07:22:31,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832827946] [2022-11-19 07:22:31,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:31,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-11-19 07:22:31,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:22:31,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-11-19 07:22:31,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=3267, Unknown=0, NotChecked=0, Total=3422 [2022-11-19 07:22:31,552 INFO L87 Difference]: Start difference. First operand 278 states and 388 transitions. Second operand has 54 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-19 07:22:41,098 WARN L233 SmtUtils]: Spent 6.23s on a formula simplification. DAG size of input: 528 DAG size of output: 356 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:22:48,262 WARN L233 SmtUtils]: Spent 6.47s on a formula simplification. DAG size of input: 533 DAG size of output: 361 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:22:56,471 WARN L233 SmtUtils]: Spent 6.30s on a formula simplification. DAG size of input: 535 DAG size of output: 356 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:23:43,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:23:43,550 INFO L93 Difference]: Finished difference Result 645 states and 932 transitions. [2022-11-19 07:23:43,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-11-19 07:23:43,551 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 78 [2022-11-19 07:23:43,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:23:43,555 INFO L225 Difference]: With dead ends: 645 [2022-11-19 07:23:43,556 INFO L226 Difference]: Without dead ends: 385 [2022-11-19 07:23:43,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 177 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1061 ImplicationChecksByTransitivity, 229.5s TimeCoverageRelationStatistics Valid=222, Invalid=4470, Unknown=0, NotChecked=0, Total=4692 [2022-11-19 07:23:43,560 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 163 mSDsluCounter, 5884 mSDsCounter, 0 mSdLazyCounter, 7006 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 6160 SdHoareTripleChecker+Invalid, 7031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 7006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:23:43,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 6160 Invalid, 7031 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [25 Valid, 7006 Invalid, 0 Unknown, 0 Unchecked, 32.1s Time] [2022-11-19 07:23:43,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-11-19 07:23:43,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 340. [2022-11-19 07:23:43,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 209 states have (on average 1.325358851674641) internal successors, (277), 213 states have internal predecessors, (277), 95 states have call successors, (95), 38 states have call predecessors, (95), 35 states have return successors, (94), 90 states have call predecessors, (94), 94 states have call successors, (94) [2022-11-19 07:23:43,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 466 transitions. [2022-11-19 07:23:43,684 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 466 transitions. Word has length 78 [2022-11-19 07:23:43,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:23:43,685 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 466 transitions. [2022-11-19 07:23:43,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-19 07:23:43,685 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 466 transitions. [2022-11-19 07:23:43,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-19 07:23:43,687 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:23:43,688 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:23:43,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 07:23:43,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:23:43,890 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:23:43,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:23:43,890 INFO L85 PathProgramCache]: Analyzing trace with hash -284219190, now seen corresponding path program 1 times [2022-11-19 07:23:43,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:23:43,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097635175] [2022-11-19 07:23:43,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:43,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:23:43,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:44,028 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 07:23:44,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:23:44,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097635175] [2022-11-19 07:23:44,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097635175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:23:44,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:23:44,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:23:44,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481137966] [2022-11-19 07:23:44,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:23:44,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:23:44,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:23:44,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:23:44,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:23:44,031 INFO L87 Difference]: Start difference. First operand 340 states and 466 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 07:23:44,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:23:44,408 INFO L93 Difference]: Finished difference Result 782 states and 1112 transitions. [2022-11-19 07:23:44,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:23:44,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 83 [2022-11-19 07:23:44,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:23:44,412 INFO L225 Difference]: With dead ends: 782 [2022-11-19 07:23:44,413 INFO L226 Difference]: Without dead ends: 468 [2022-11-19 07:23:44,414 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 [2022-11-19 07:23:44,415 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 57 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:23:44,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 539 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:23:44,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-11-19 07:23:44,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 461. [2022-11-19 07:23:44,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 299 states have (on average 1.394648829431438) internal successors, (417), 303 states have internal predecessors, (417), 126 states have call successors, (126), 38 states have call predecessors, (126), 35 states have return successors, (125), 121 states have call predecessors, (125), 125 states have call successors, (125) [2022-11-19 07:23:44,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 668 transitions. [2022-11-19 07:23:44,585 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 668 transitions. Word has length 83 [2022-11-19 07:23:44,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:23:44,586 INFO L495 AbstractCegarLoop]: Abstraction has 461 states and 668 transitions. [2022-11-19 07:23:44,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 07:23:44,586 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 668 transitions. [2022-11-19 07:23:44,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-19 07:23:44,589 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:23:44,589 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:23:44,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:23:44,590 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:23:44,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:23:44,590 INFO L85 PathProgramCache]: Analyzing trace with hash 719081399, now seen corresponding path program 1 times [2022-11-19 07:23:44,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:23:44,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215535327] [2022-11-19 07:23:44,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:44,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:23:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:44,739 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 07:23:44,739 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:23:44,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215535327] [2022-11-19 07:23:44,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215535327] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:23:44,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549549598] [2022-11-19 07:23:44,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:44,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:23:44,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:23:44,742 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:23:44,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:23:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:45,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 1133 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:23:45,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:23:45,160 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 07:23:45,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:23:45,239 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 07:23:45,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549549598] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:23:45,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [756404595] [2022-11-19 07:23:45,243 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-19 07:23:45,244 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:23:45,244 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:23:45,245 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:23:45,245 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:24:32,335 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-19 07:24:32,711 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 264 for LOIs [2022-11-19 07:24:34,769 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 232 for LOIs [2022-11-19 07:24:34,808 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 444 for LOIs [2022-11-19 07:24:35,117 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 264 for LOIs [2022-11-19 07:24:38,303 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 222 for LOIs [2022-11-19 07:24:38,340 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 275 for LOIs [2022-11-19 07:24:45,373 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 245 for LOIs [2022-11-19 07:24:45,444 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 242 for LOIs [2022-11-19 07:24:45,486 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 476 for LOIs [2022-11-19 07:24:47,668 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 250 for LOIs [2022-11-19 07:24:47,724 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:25:03,481 WARN L233 SmtUtils]: Spent 6.67s on a formula simplification. DAG size of input: 444 DAG size of output: 308 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:25:10,624 WARN L233 SmtUtils]: Spent 7.03s on a formula simplification. DAG size of input: 467 DAG size of output: 328 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:25:17,959 WARN L233 SmtUtils]: Spent 6.40s on a formula simplification. DAG size of input: 444 DAG size of output: 328 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:25:24,583 WARN L233 SmtUtils]: Spent 6.47s on a formula simplification. DAG size of input: 467 DAG size of output: 348 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:25:39,755 WARN L233 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 490 DAG size of output: 297 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:25:45,146 WARN L233 SmtUtils]: Spent 5.17s on a formula simplification. DAG size of input: 502 DAG size of output: 310 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:25:52,128 WARN L233 SmtUtils]: Spent 5.53s on a formula simplification. DAG size of input: 512 DAG size of output: 299 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:26:05,531 WARN L233 SmtUtils]: Spent 13.07s on a formula simplification. DAG size of input: 591 DAG size of output: 332 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:26:20,101 WARN L233 SmtUtils]: Spent 11.48s on a formula simplification. DAG size of input: 577 DAG size of output: 437 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:26:31,909 WARN L233 SmtUtils]: Spent 11.37s on a formula simplification. DAG size of input: 581 DAG size of output: 443 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:26:47,185 WARN L233 SmtUtils]: Spent 5.82s on a formula simplification. DAG size of input: 476 DAG size of output: 276 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:27:39,539 WARN L233 SmtUtils]: Spent 5.30s on a formula simplification. DAG size of input: 478 DAG size of output: 329 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:27:45,802 WARN L233 SmtUtils]: Spent 5.50s on a formula simplification. DAG size of input: 480 DAG size of output: 331 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:27:53,446 WARN L233 SmtUtils]: Spent 6.05s on a formula simplification. DAG size of input: 522 DAG size of output: 354 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:27:57,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [756404595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:27:57,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:27:57,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [4, 4, 4] total 63 [2022-11-19 07:27:57,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660066300] [2022-11-19 07:27:57,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:27:57,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-11-19 07:27:57,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:27:57,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-11-19 07:27:57,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=3743, Unknown=0, NotChecked=0, Total=3906 [2022-11-19 07:27:57,685 INFO L87 Difference]: Start difference. First operand 461 states and 668 transitions. Second operand has 58 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 35 states have internal predecessors, (44), 18 states have call successors, (18), 12 states have call predecessors, (18), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 07:28:07,460 WARN L233 SmtUtils]: Spent 5.79s on a formula simplification. DAG size of input: 367 DAG size of output: 332 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:28:21,603 WARN L233 SmtUtils]: Spent 6.63s on a formula simplification. DAG size of input: 535 DAG size of output: 369 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:28:28,912 WARN L233 SmtUtils]: Spent 6.66s on a formula simplification. DAG size of input: 540 DAG size of output: 374 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:28:36,568 WARN L233 SmtUtils]: Spent 6.99s on a formula simplification. DAG size of input: 570 DAG size of output: 356 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:28:44,637 WARN L233 SmtUtils]: Spent 7.11s on a formula simplification. DAG size of input: 575 DAG size of output: 361 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:28:52,736 WARN L233 SmtUtils]: Spent 7.19s on a formula simplification. DAG size of input: 577 DAG size of output: 363 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:29:01,796 WARN L233 SmtUtils]: Spent 7.25s on a formula simplification. DAG size of input: 576 DAG size of output: 362 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:29:09,896 WARN L233 SmtUtils]: Spent 7.45s on a formula simplification. DAG size of input: 587 DAG size of output: 325 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:29:19,192 WARN L233 SmtUtils]: Spent 7.40s on a formula simplification. DAG size of input: 589 DAG size of output: 326 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:29:28,428 WARN L233 SmtUtils]: Spent 6.91s on a formula simplification. DAG size of input: 567 DAG size of output: 353 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:29:36,624 WARN L233 SmtUtils]: Spent 7.01s on a formula simplification. DAG size of input: 572 DAG size of output: 358 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:29:44,505 WARN L233 SmtUtils]: Spent 7.08s on a formula simplification. DAG size of input: 574 DAG size of output: 360 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:30:38,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:30:38,348 INFO L93 Difference]: Finished difference Result 976 states and 1464 transitions. [2022-11-19 07:30:38,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-11-19 07:30:38,349 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 35 states have internal predecessors, (44), 18 states have call successors, (18), 12 states have call predecessors, (18), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 84 [2022-11-19 07:30:38,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:30:38,354 INFO L225 Difference]: With dead ends: 976 [2022-11-19 07:30:38,354 INFO L226 Difference]: Without dead ends: 616 [2022-11-19 07:30:38,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 191 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1459 ImplicationChecksByTransitivity, 306.1s TimeCoverageRelationStatistics Valid=345, Invalid=6627, Unknown=0, NotChecked=0, Total=6972 [2022-11-19 07:30:38,358 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 369 mSDsluCounter, 7805 mSDsCounter, 0 mSdLazyCounter, 9991 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 8074 SdHoareTripleChecker+Invalid, 10052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 9991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:30:38,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 8074 Invalid, 10052 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [61 Valid, 9991 Invalid, 0 Unknown, 0 Unchecked, 43.5s Time] [2022-11-19 07:30:38,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2022-11-19 07:30:38,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 477. [2022-11-19 07:30:38,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 311 states have (on average 1.3987138263665595) internal successors, (435), 317 states have internal predecessors, (435), 129 states have call successors, (129), 39 states have call predecessors, (129), 36 states have return successors, (128), 122 states have call predecessors, (128), 128 states have call successors, (128) [2022-11-19 07:30:38,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 692 transitions. [2022-11-19 07:30:38,597 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 692 transitions. Word has length 84 [2022-11-19 07:30:38,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:30:38,597 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 692 transitions. [2022-11-19 07:30:38,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 35 states have internal predecessors, (44), 18 states have call successors, (18), 12 states have call predecessors, (18), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 07:30:38,598 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 692 transitions. [2022-11-19 07:30:38,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-19 07:30:38,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:30:38,600 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:30:38,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:30:38,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:30:38,811 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:30:38,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:30:38,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1578902606, now seen corresponding path program 1 times [2022-11-19 07:30:38,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:30:38,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169857465] [2022-11-19 07:30:38,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:30:38,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:30:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:30:39,131 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 07:30:39,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:30:39,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169857465] [2022-11-19 07:30:39,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169857465] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:30:39,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389491337] [2022-11-19 07:30:39,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:30:39,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:30:39,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:30:39,134 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:30:39,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fcee56c-02b9-43ee-b3a0-995f0951d79b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:30:39,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:30:39,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 1239 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:30:39,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:30:39,541 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 07:30:39,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:30:39,630 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 07:30:39,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389491337] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:30:39,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1586957076] [2022-11-19 07:30:39,640 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2022-11-19 07:30:39,641 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:30:39,642 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:30:39,642 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:30:39,642 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:31:17,421 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-19 07:31:17,729 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 232 for LOIs [2022-11-19 07:31:17,798 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 233 for LOIs [2022-11-19 07:31:17,858 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 220 for LOIs [2022-11-19 07:31:17,921 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-11-19 07:31:18,234 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:31:33,136 WARN L233 SmtUtils]: Spent 6.35s on a formula simplification. DAG size of input: 444 DAG size of output: 308 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:31:39,886 WARN L233 SmtUtils]: Spent 6.65s on a formula simplification. DAG size of input: 467 DAG size of output: 328 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:31:47,047 WARN L233 SmtUtils]: Spent 6.29s on a formula simplification. DAG size of input: 448 DAG size of output: 305 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:31:53,775 WARN L233 SmtUtils]: Spent 6.59s on a formula simplification. DAG size of input: 471 DAG size of output: 325 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)