./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 39fe77adb61a1e466f06fcf9920e7f42d562f22740249d3a797ea504e0f3c31a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 01:55:18,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:55:18,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:55:18,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:55:18,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:55:18,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:55:18,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:55:18,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:55:18,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:55:18,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:55:18,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:55:18,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:55:18,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:55:18,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:55:18,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:55:18,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:55:18,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:55:18,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:55:18,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:55:18,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:55:18,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:55:18,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:55:18,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:55:18,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:55:18,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:55:18,769 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:55:18,769 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:55:18,770 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:55:18,771 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:55:18,772 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:55:18,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:55:18,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:55:18,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:55:18,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:55:18,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:55:18,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:55:18,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:55:18,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:55:18,779 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:55:18,780 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:55:18,781 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:55:18,781 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 01:55:18,818 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:55:18,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:55:18,819 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:55:18,819 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:55:18,820 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:55:18,820 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:55:18,820 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:55:18,820 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:55:18,820 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:55:18,820 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:55:18,821 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:55:18,821 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:55:18,821 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:55:18,821 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:55:18,821 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:55:18,822 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:55:18,822 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:55:18,822 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:55:18,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:55:18,823 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 01:55:18,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:55:18,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 01:55:18,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:55:18,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:55:18,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:55:18,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:55:18,824 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 01:55:18,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:55:18,824 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:55:18,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:55:18,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:55:18,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:55:18,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:55:18,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:55:18,826 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:55:18,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:55:18,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:55:18,826 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:55:18,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:55:18,826 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:55:18,827 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:55:18,827 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_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39fe77adb61a1e466f06fcf9920e7f42d562f22740249d3a797ea504e0f3c31a [2022-11-03 01:55:19,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:55:19,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:55:19,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:55:19,146 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:55:19,147 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:55:19,148 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/email_spec27_product34.cil.c [2022-11-03 01:55:19,216 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/data/0d250cb7f/0c66e2a6919b407384f5156852527536/FLAGb43f28625 [2022-11-03 01:55:19,793 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:55:19,794 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/sv-benchmarks/c/product-lines/email_spec27_product34.cil.c [2022-11-03 01:55:19,813 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/data/0d250cb7f/0c66e2a6919b407384f5156852527536/FLAGb43f28625 [2022-11-03 01:55:20,027 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/data/0d250cb7f/0c66e2a6919b407384f5156852527536 [2022-11-03 01:55:20,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:55:20,035 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:55:20,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:55:20,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:55:20,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:55:20,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:55:20" (1/1) ... [2022-11-03 01:55:20,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67c7d2dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:20, skipping insertion in model container [2022-11-03 01:55:20,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:55:20" (1/1) ... [2022-11-03 01:55:20,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:55:20,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:55:20,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/sv-benchmarks/c/product-lines/email_spec27_product34.cil.c[51595,51608] [2022-11-03 01:55:20,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:55:20,885 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:55:20,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/sv-benchmarks/c/product-lines/email_spec27_product34.cil.c[51595,51608] [2022-11-03 01:55:21,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:55:21,045 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:55:21,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:21 WrapperNode [2022-11-03 01:55:21,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:55:21,047 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:55:21,047 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:55:21,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:55:21,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:21" (1/1) ... [2022-11-03 01:55:21,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:21" (1/1) ... [2022-11-03 01:55:21,154 INFO L138 Inliner]: procedures = 134, calls = 238, calls flagged for inlining = 61, calls inlined = 58, statements flattened = 1088 [2022-11-03 01:55:21,155 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:55:21,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:55:21,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:55:21,156 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:55:21,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:21" (1/1) ... [2022-11-03 01:55:21,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:21" (1/1) ... [2022-11-03 01:55:21,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:21" (1/1) ... [2022-11-03 01:55:21,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:21" (1/1) ... [2022-11-03 01:55:21,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:21" (1/1) ... [2022-11-03 01:55:21,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:21" (1/1) ... [2022-11-03 01:55:21,206 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:21" (1/1) ... [2022-11-03 01:55:21,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:21" (1/1) ... [2022-11-03 01:55:21,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:55:21,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:55:21,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:55:21,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:55:21,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:21" (1/1) ... [2022-11-03 01:55:21,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:55:21,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:55:21,255 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:55:21,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:55:21,372 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-03 01:55:21,372 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-03 01:55:21,372 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-03 01:55:21,372 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-03 01:55:21,372 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-03 01:55:21,373 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-03 01:55:21,373 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-03 01:55:21,373 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-03 01:55:21,373 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-03 01:55:21,373 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-03 01:55:21,373 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-03 01:55:21,374 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-03 01:55:21,374 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-03 01:55:21,374 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-03 01:55:21,374 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-03 01:55:21,374 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-03 01:55:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-03 01:55:21,375 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-03 01:55:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-03 01:55:21,375 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-03 01:55:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-03 01:55:21,375 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-03 01:55:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-03 01:55:21,376 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-03 01:55:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-03 01:55:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-03 01:55:21,377 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-03 01:55:21,377 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-03 01:55:21,377 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-03 01:55:21,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:55:21,379 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-03 01:55:21,379 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-03 01:55:21,379 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-03 01:55:21,380 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-03 01:55:21,380 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-03 01:55:21,380 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-03 01:55:21,380 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-03 01:55:21,380 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-03 01:55:21,380 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-03 01:55:21,381 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-03 01:55:21,381 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-03 01:55:21,381 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-03 01:55:21,381 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2022-11-03 01:55:21,381 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2022-11-03 01:55:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-11-03 01:55:21,382 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-11-03 01:55:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-03 01:55:21,382 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-03 01:55:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-03 01:55:21,382 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-03 01:55:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-03 01:55:21,382 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-03 01:55:21,383 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-03 01:55:21,383 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-03 01:55:21,383 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-03 01:55:21,383 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-03 01:55:21,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:55:21,383 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-03 01:55:21,383 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-03 01:55:21,383 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-03 01:55:21,384 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-03 01:55:21,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:55:21,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:55:21,713 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:55:21,716 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:55:22,654 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:55:23,354 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:55:23,354 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 01:55:23,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:55:23 BoogieIcfgContainer [2022-11-03 01:55:23,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:55:23,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:55:23,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:55:23,364 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:55:23,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:55:20" (1/3) ... [2022-11-03 01:55:23,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782fc5ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:55:23, skipping insertion in model container [2022-11-03 01:55:23,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:21" (2/3) ... [2022-11-03 01:55:23,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782fc5ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:55:23, skipping insertion in model container [2022-11-03 01:55:23,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:55:23" (3/3) ... [2022-11-03 01:55:23,369 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product34.cil.c [2022-11-03 01:55:23,415 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:55:23,416 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:55:23,495 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:55:23,516 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;@4106f50, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:55:23,516 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:55:23,523 INFO L276 IsEmpty]: Start isEmpty. Operand has 237 states, 133 states have (on average 1.2857142857142858) internal successors, (171), 138 states have internal predecessors, (171), 73 states have call successors, (73), 29 states have call predecessors, (73), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2022-11-03 01:55:23,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-03 01:55:23,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:23,553 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:23,554 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:23,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:23,561 INFO L85 PathProgramCache]: Analyzing trace with hash -361348639, now seen corresponding path program 1 times [2022-11-03 01:55:23,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:23,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843447639] [2022-11-03 01:55:23,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:23,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:24,022 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 01:55:24,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:24,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843447639] [2022-11-03 01:55:24,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843447639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:24,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:24,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:55:24,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517241205] [2022-11-03 01:55:24,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:24,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 01:55:24,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:55:24,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 01:55:24,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:55:24,074 INFO L87 Difference]: Start difference. First operand has 237 states, 133 states have (on average 1.2857142857142858) internal successors, (171), 138 states have internal predecessors, (171), 73 states have call successors, (73), 29 states have call predecessors, (73), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 01:55:24,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:24,258 INFO L93 Difference]: Finished difference Result 382 states and 505 transitions. [2022-11-03 01:55:24,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 01:55:24,262 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 99 [2022-11-03 01:55:24,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:24,279 INFO L225 Difference]: With dead ends: 382 [2022-11-03 01:55:24,279 INFO L226 Difference]: Without dead ends: 234 [2022-11-03 01:55:24,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:55:24,301 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:24,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 268 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:55:24,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-11-03 01:55:24,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2022-11-03 01:55:24,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 131 states have (on average 1.2595419847328244) internal successors, (165), 135 states have internal predecessors, (165), 73 states have call successors, (73), 29 states have call predecessors, (73), 29 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2022-11-03 01:55:24,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 310 transitions. [2022-11-03 01:55:24,399 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 310 transitions. Word has length 99 [2022-11-03 01:55:24,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:24,401 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 310 transitions. [2022-11-03 01:55:24,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 01:55:24,402 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 310 transitions. [2022-11-03 01:55:24,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-03 01:55:24,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:24,410 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:24,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:55:24,410 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:24,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:24,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1999790941, now seen corresponding path program 1 times [2022-11-03 01:55:24,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:24,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031958176] [2022-11-03 01:55:24,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:24,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:24,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:24,875 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 01:55:24,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:24,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031958176] [2022-11-03 01:55:24,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031958176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:24,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:24,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:55:24,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704676809] [2022-11-03 01:55:24,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:24,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:55:24,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:55:24,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:55:24,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:55:24,879 INFO L87 Difference]: Start difference. First operand 234 states and 310 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-03 01:55:25,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:25,034 INFO L93 Difference]: Finished difference Result 378 states and 490 transitions. [2022-11-03 01:55:25,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:55:25,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 111 [2022-11-03 01:55:25,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:25,037 INFO L225 Difference]: With dead ends: 378 [2022-11-03 01:55:25,037 INFO L226 Difference]: Without dead ends: 236 [2022-11-03 01:55:25,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:55:25,040 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 0 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:25,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 529 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:55:25,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-11-03 01:55:25,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2022-11-03 01:55:25,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 133 states have (on average 1.255639097744361) internal successors, (167), 137 states have internal predecessors, (167), 73 states have call successors, (73), 29 states have call predecessors, (73), 29 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2022-11-03 01:55:25,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 312 transitions. [2022-11-03 01:55:25,059 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 312 transitions. Word has length 111 [2022-11-03 01:55:25,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:25,060 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 312 transitions. [2022-11-03 01:55:25,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-03 01:55:25,061 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 312 transitions. [2022-11-03 01:55:25,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-03 01:55:25,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:25,063 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:25,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:55:25,064 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:25,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:25,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1841764790, now seen corresponding path program 1 times [2022-11-03 01:55:25,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:25,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072060559] [2022-11-03 01:55:25,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:25,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:25,195 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 01:55:25,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:25,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072060559] [2022-11-03 01:55:25,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072060559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:25,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:25,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:55:25,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519459379] [2022-11-03 01:55:25,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:25,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:55:25,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:55:25,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:55:25,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:55:25,198 INFO L87 Difference]: Start difference. First operand 236 states and 312 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 01:55:25,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:25,415 INFO L93 Difference]: Finished difference Result 507 states and 691 transitions. [2022-11-03 01:55:25,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:55:25,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 105 [2022-11-03 01:55:25,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:25,418 INFO L225 Difference]: With dead ends: 507 [2022-11-03 01:55:25,418 INFO L226 Difference]: Without dead ends: 289 [2022-11-03 01:55:25,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:55:25,421 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 59 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:25,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 545 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:55:25,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-11-03 01:55:25,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 284. [2022-11-03 01:55:25,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 167 states have (on average 1.3293413173652695) internal successors, (222), 171 states have internal predecessors, (222), 87 states have call successors, (87), 29 states have call predecessors, (87), 29 states have return successors, (86), 85 states have call predecessors, (86), 86 states have call successors, (86) [2022-11-03 01:55:25,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 395 transitions. [2022-11-03 01:55:25,455 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 395 transitions. Word has length 105 [2022-11-03 01:55:25,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:25,457 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 395 transitions. [2022-11-03 01:55:25,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 01:55:25,458 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 395 transitions. [2022-11-03 01:55:25,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-03 01:55:25,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:25,492 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:25,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:55:25,492 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:25,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:25,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1548770012, now seen corresponding path program 1 times [2022-11-03 01:55:25,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:25,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476444778] [2022-11-03 01:55:25,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:25,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:25,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:25,795 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 01:55:25,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:25,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476444778] [2022-11-03 01:55:25,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476444778] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:55:25,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995806179] [2022-11-03 01:55:25,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:25,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:55:25,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:55:25,804 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:55:25,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:55:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:26,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 1219 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:55:26,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:26,281 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 01:55:26,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:55:26,401 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 01:55:26,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995806179] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:55:26,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1867216126] [2022-11-03 01:55:26,428 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2022-11-03 01:55:26,428 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:55:26,432 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:55:26,438 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:55:26,442 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:55:53,606 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-11-03 01:55:54,036 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 01:55:54,379 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:56:07,916 WARN L234 SmtUtils]: Spent 5.38s on a formula simplification. DAG size of input: 440 DAG size of output: 239 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:56:13,576 WARN L234 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 463 DAG size of output: 259 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:56:43,211 WARN L234 SmtUtils]: Spent 6.17s on a formula simplification. DAG size of input: 498 DAG size of output: 351 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:56:52,632 WARN L234 SmtUtils]: Spent 8.04s on a formula simplification. DAG size of input: 508 DAG size of output: 385 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:57:11,404 WARN L234 SmtUtils]: Spent 18.41s on a formula simplification. DAG size of input: 573 DAG size of output: 418 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:57:24,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1867216126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:57:24,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:57:24,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-11-03 01:57:24,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920820117] [2022-11-03 01:57:24,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:57:24,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-03 01:57:24,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:57:24,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-03 01:57:24,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-11-03 01:57:24,916 INFO L87 Difference]: Start difference. First operand 284 states and 395 transitions. Second operand has 21 states, 16 states have (on average 3.375) internal successors, (54), 15 states have internal predecessors, (54), 7 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2022-11-03 01:57:33,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:57:33,344 INFO L93 Difference]: Finished difference Result 615 states and 890 transitions. [2022-11-03 01:57:33,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 01:57:33,345 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 3.375) internal successors, (54), 15 states have internal predecessors, (54), 7 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 106 [2022-11-03 01:57:33,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:57:33,347 INFO L225 Difference]: With dead ends: 615 [2022-11-03 01:57:33,348 INFO L226 Difference]: Without dead ends: 349 [2022-11-03 01:57:33,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 90.5s TimeCoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-11-03 01:57:33,356 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 92 mSDsluCounter, 3753 mSDsCounter, 0 mSdLazyCounter, 1941 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 3890 SdHoareTripleChecker+Invalid, 1956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:57:33,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 3890 Invalid, 1956 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [15 Valid, 1941 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-11-03 01:57:33,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-11-03 01:57:33,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 307. [2022-11-03 01:57:33,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 189 states have (on average 1.3492063492063493) internal successors, (255), 193 states have internal predecessors, (255), 87 states have call successors, (87), 30 states have call predecessors, (87), 30 states have return successors, (86), 85 states have call predecessors, (86), 86 states have call successors, (86) [2022-11-03 01:57:33,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 428 transitions. [2022-11-03 01:57:33,474 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 428 transitions. Word has length 106 [2022-11-03 01:57:33,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:57:33,474 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 428 transitions. [2022-11-03 01:57:33,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 3.375) internal successors, (54), 15 states have internal predecessors, (54), 7 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2022-11-03 01:57:33,475 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 428 transitions. [2022-11-03 01:57:33,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-03 01:57:33,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:57:33,477 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:57:33,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 01:57:33,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:57:33,691 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:57:33,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:57:33,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1362641946, now seen corresponding path program 1 times [2022-11-03 01:57:33,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:57:33,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448069042] [2022-11-03 01:57:33,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:57:33,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:57:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:57:33,828 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-03 01:57:33,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:57:33,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448069042] [2022-11-03 01:57:33,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448069042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:57:33,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:57:33,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:57:33,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945485748] [2022-11-03 01:57:33,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:57:33,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:57:33,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:57:33,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:57:33,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:57:33,831 INFO L87 Difference]: Start difference. First operand 307 states and 428 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-03 01:57:34,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:57:34,103 INFO L93 Difference]: Finished difference Result 717 states and 1036 transitions. [2022-11-03 01:57:34,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:57:34,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 122 [2022-11-03 01:57:34,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:57:34,106 INFO L225 Difference]: With dead ends: 717 [2022-11-03 01:57:34,106 INFO L226 Difference]: Without dead ends: 434 [2022-11-03 01:57:34,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:57:34,108 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 57 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:57:34,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 558 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:57:34,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-11-03 01:57:34,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 429. [2022-11-03 01:57:34,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 280 states have (on average 1.4107142857142858) internal successors, (395), 284 states have internal predecessors, (395), 118 states have call successors, (118), 30 states have call predecessors, (118), 30 states have return successors, (117), 116 states have call predecessors, (117), 117 states have call successors, (117) [2022-11-03 01:57:34,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 630 transitions. [2022-11-03 01:57:34,273 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 630 transitions. Word has length 122 [2022-11-03 01:57:34,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:57:34,273 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 630 transitions. [2022-11-03 01:57:34,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-03 01:57:34,274 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 630 transitions. [2022-11-03 01:57:34,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-03 01:57:34,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:57:34,277 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:57:34,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:57:34,277 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:57:34,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:57:34,278 INFO L85 PathProgramCache]: Analyzing trace with hash 410646492, now seen corresponding path program 1 times [2022-11-03 01:57:34,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:57:34,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260601870] [2022-11-03 01:57:34,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:57:34,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:57:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:57:34,441 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 01:57:34,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:57:34,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260601870] [2022-11-03 01:57:34,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260601870] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:57:34,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517961641] [2022-11-03 01:57:34,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:57:34,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:57:34,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:57:34,447 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:57:34,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 01:57:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:57:34,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 1249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:57:34,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:57:34,823 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 01:57:34,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:57:34,904 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 01:57:34,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517961641] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:57:34,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1094329416] [2022-11-03 01:57:34,909 INFO L159 IcfgInterpreter]: Started Sifa with 93 locations of interest [2022-11-03 01:57:34,909 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:57:34,910 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:57:34,910 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:57:34,910 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:58:15,194 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-03 01:58:15,493 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 263 for LOIs [2022-11-03 01:58:17,273 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 233 for LOIs [2022-11-03 01:58:17,311 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-11-03 01:58:17,625 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 265 for LOIs [2022-11-03 01:58:21,057 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 273 for LOIs [2022-11-03 01:58:38,156 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 247 for LOIs [2022-11-03 01:58:38,814 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 247 for LOIs [2022-11-03 01:58:38,855 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 454 for LOIs [2022-11-03 01:58:39,459 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 245 for LOIs [2022-11-03 01:58:39,528 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 433 for LOIs [2022-11-03 01:58:40,146 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 475 for LOIs [2022-11-03 01:58:41,985 INFO L197 IcfgInterpreter]: Interpreting procedure isVerified with input of size 247 for LOIs [2022-11-03 01:58:42,025 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 250 for LOIs [2022-11-03 01:58:42,074 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:58:55,078 WARN L234 SmtUtils]: Spent 5.46s on a formula simplification. DAG size of input: 444 DAG size of output: 244 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:59:00,961 WARN L234 SmtUtils]: Spent 5.73s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:59:31,573 WARN L234 SmtUtils]: Spent 6.11s on a formula simplification. DAG size of input: 498 DAG size of output: 351 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:59:40,909 WARN L234 SmtUtils]: Spent 7.98s on a formula simplification. DAG size of input: 508 DAG size of output: 385 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:59:52,906 WARN L234 SmtUtils]: Spent 10.72s on a formula simplification. DAG size of input: 584 DAG size of output: 333 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:00:05,825 WARN L234 SmtUtils]: Spent 11.58s on a formula simplification. DAG size of input: 586 DAG size of output: 335 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:00:29,672 WARN L234 SmtUtils]: Spent 22.48s on a formula simplification. DAG size of input: 585 DAG size of output: 457 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:00:53,570 WARN L234 SmtUtils]: Spent 22.42s on a formula simplification. DAG size of input: 583 DAG size of output: 455 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:01:13,034 WARN L234 SmtUtils]: Spent 7.40s on a formula simplification. DAG size of input: 475 DAG size of output: 275 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:01:46,131 WARN L234 SmtUtils]: Spent 12.41s on a formula simplification. DAG size of input: 454 DAG size of output: 345 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:02:01,403 WARN L234 SmtUtils]: Spent 13.05s on a formula simplification. DAG size of input: 480 DAG size of output: 360 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:02:32,260 WARN L234 SmtUtils]: Spent 12.78s on a formula simplification. DAG size of input: 433 DAG size of output: 340 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:02:48,749 WARN L234 SmtUtils]: Spent 13.11s on a formula simplification. DAG size of input: 452 DAG size of output: 348 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:03:18,420 WARN L234 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 519 DAG size of output: 351 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:04:18,726 WARN L234 SmtUtils]: Spent 18.51s on a formula simplification. DAG size of input: 585 DAG size of output: 411 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:04:27,802 WARN L234 SmtUtils]: Spent 7.16s on a formula simplification. DAG size of input: 585 DAG size of output: 384 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:04:52,793 WARN L234 SmtUtils]: Spent 8.35s on a formula simplification. DAG size of input: 633 DAG size of output: 469 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:05:01,240 WARN L234 SmtUtils]: Spent 6.71s on a formula simplification. DAG size of input: 633 DAG size of output: 447 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:05:01,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1094329416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:05:01,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:05:01,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [76] imperfect sequences [4, 4, 4] total 82 [2022-11-03 02:05:01,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116942655] [2022-11-03 02:05:01,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:05:01,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-11-03 02:05:01,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:05:01,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-11-03 02:05:01,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=6378, Unknown=0, NotChecked=0, Total=6642 [2022-11-03 02:05:01,251 INFO L87 Difference]: Start difference. First operand 429 states and 630 transitions. Second operand has 77 states, 49 states have (on average 1.163265306122449) internal successors, (57), 46 states have internal predecessors, (57), 23 states have call successors, (24), 15 states have call predecessors, (24), 12 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2022-11-03 02:05:11,244 WARN L234 SmtUtils]: Spent 6.03s on a formula simplification. DAG size of input: 540 DAG size of output: 367 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:05:18,158 WARN L234 SmtUtils]: Spent 6.38s on a formula simplification. DAG size of input: 542 DAG size of output: 369 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:05:36,706 WARN L234 SmtUtils]: Spent 17.94s on a formula simplification. DAG size of input: 464 DAG size of output: 450 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:05:55,287 WARN L234 SmtUtils]: Spent 17.93s on a formula simplification. DAG size of input: 462 DAG size of output: 448 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:06:01,904 WARN L234 SmtUtils]: Spent 5.83s on a formula simplification. DAG size of input: 525 DAG size of output: 352 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:06:08,316 WARN L234 SmtUtils]: Spent 5.67s on a formula simplification. DAG size of input: 521 DAG size of output: 348 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:06:15,101 WARN L234 SmtUtils]: Spent 5.84s on a formula simplification. DAG size of input: 527 DAG size of output: 354 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:06:21,951 WARN L234 SmtUtils]: Spent 5.86s on a formula simplification. DAG size of input: 529 DAG size of output: 356 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:06:36,601 WARN L234 SmtUtils]: Spent 9.43s on a formula simplification. DAG size of input: 585 DAG size of output: 343 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:07:43,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:07:43,548 INFO L93 Difference]: Finished difference Result 1002 states and 1503 transitions. [2022-11-03 02:07:43,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-11-03 02:07:43,549 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 49 states have (on average 1.163265306122449) internal successors, (57), 46 states have internal predecessors, (57), 23 states have call successors, (24), 15 states have call predecessors, (24), 12 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 112 [2022-11-03 02:07:43,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:07:43,553 INFO L225 Difference]: With dead ends: 1002 [2022-11-03 02:07:43,554 INFO L226 Difference]: Without dead ends: 636 [2022-11-03 02:07:43,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 255 SyntacticMatches, 3 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2260 ImplicationChecksByTransitivity, 487.2s TimeCoverageRelationStatistics Valid=369, Invalid=9333, Unknown=0, NotChecked=0, Total=9702 [2022-11-03 02:07:43,560 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 274 mSDsluCounter, 8113 mSDsCounter, 0 mSdLazyCounter, 11610 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 8041 SdHoareTripleChecker+Invalid, 11680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 11610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:07:43,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 8041 Invalid, 11680 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [70 Valid, 11610 Invalid, 0 Unknown, 0 Unchecked, 53.0s Time] [2022-11-03 02:07:43,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2022-11-03 02:07:43,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 522. [2022-11-03 02:07:43,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 338 states have (on average 1.3757396449704142) internal successors, (465), 345 states have internal predecessors, (465), 142 states have call successors, (142), 43 states have call predecessors, (142), 41 states have return successors, (142), 135 states have call predecessors, (142), 141 states have call successors, (142) [2022-11-03 02:07:43,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 749 transitions. [2022-11-03 02:07:43,850 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 749 transitions. Word has length 112 [2022-11-03 02:07:43,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:07:43,850 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 749 transitions. [2022-11-03 02:07:43,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 49 states have (on average 1.163265306122449) internal successors, (57), 46 states have internal predecessors, (57), 23 states have call successors, (24), 15 states have call predecessors, (24), 12 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2022-11-03 02:07:43,851 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 749 transitions. [2022-11-03 02:07:43,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-03 02:07:43,854 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:07:43,854 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:07:43,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-03 02:07:44,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-03 02:07:44,071 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:07:44,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:07:44,071 INFO L85 PathProgramCache]: Analyzing trace with hash -537705352, now seen corresponding path program 1 times [2022-11-03 02:07:44,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:07:44,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661558948] [2022-11-03 02:07:44,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:07:44,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:07:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:07:44,313 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:07:44,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:07:44,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661558948] [2022-11-03 02:07:44,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661558948] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:07:44,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558155220] [2022-11-03 02:07:44,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:07:44,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:07:44,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:07:44,319 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:07:44,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e02a0f0-2ac0-44cf-9cfe-b92c4891f9a1/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:07:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:07:44,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 1355 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:07:44,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:07:44,731 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:07:44,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:07:44,845 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:07:44,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558155220] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:07:44,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [802095642] [2022-11-03 02:07:44,857 INFO L159 IcfgInterpreter]: Started Sifa with 98 locations of interest [2022-11-03 02:07:44,857 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:07:44,858 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:07:44,859 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:07:44,859 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs