./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product12.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_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/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_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product12.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/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_8760185d-0add-44d7-aa3f-b2bea1c3ca70/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 2f43e7267ed715243a41104ad5703ed473575064952f167333067630dfd5e9da --- 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 02:08:36,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:08:36,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:08:36,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:08:36,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:08:36,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:08:36,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:08:36,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:08:36,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:08:36,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:08:36,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:08:36,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:08:36,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:08:36,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:08:36,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:08:36,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:08:36,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:08:36,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:08:36,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:08:36,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:08:36,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:08:36,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:08:36,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:08:36,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:08:36,859 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:08:36,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:08:36,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:08:36,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:08:36,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:08:36,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:08:36,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:08:36,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:08:36,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:08:36,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:08:36,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:08:36,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:08:36,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:08:36,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:08:36,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:08:36,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:08:36,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:08:36,880 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:08:36,917 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:08:36,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:08:36,918 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:08:36,919 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:08:36,919 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:08:36,920 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:08:36,920 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:08:36,920 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:08:36,920 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:08:36,921 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:08:36,922 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:08:36,922 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:08:36,922 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:08:36,923 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:08:36,923 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:08:36,923 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:08:36,923 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:08:36,924 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:08:36,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:08:36,925 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:08:36,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:08:36,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:08:36,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:08:36,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:08:36,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:08:36,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:08:36,928 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:08:36,928 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:08:36,928 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:08:36,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:08:36,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:08:36,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:08:36,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:08:36,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:08:36,930 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:08:36,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:08:36,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:08:36,931 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:08:36,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:08:36,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:08:36,932 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:08:36,932 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_8760185d-0add-44d7-aa3f-b2bea1c3ca70/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f43e7267ed715243a41104ad5703ed473575064952f167333067630dfd5e9da [2022-11-03 02:08:37,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:08:37,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:08:37,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:08:37,250 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:08:37,251 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:08:37,252 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/email_spec1_product12.cil.c [2022-11-03 02:08:37,342 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/data/957235df2/333d7cf3a091483a8e07fb347d12095b/FLAG2b5995fb9 [2022-11-03 02:08:37,992 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:08:37,993 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/sv-benchmarks/c/product-lines/email_spec1_product12.cil.c [2022-11-03 02:08:38,030 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/data/957235df2/333d7cf3a091483a8e07fb347d12095b/FLAG2b5995fb9 [2022-11-03 02:08:38,250 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/data/957235df2/333d7cf3a091483a8e07fb347d12095b [2022-11-03 02:08:38,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:08:38,254 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:08:38,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:08:38,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:08:38,264 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:08:38,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:08:38" (1/1) ... [2022-11-03 02:08:38,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3385882a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:38, skipping insertion in model container [2022-11-03 02:08:38,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:08:38" (1/1) ... [2022-11-03 02:08:38,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:08:38,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:08:38,847 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_8760185d-0add-44d7-aa3f-b2bea1c3ca70/sv-benchmarks/c/product-lines/email_spec1_product12.cil.c[58861,58874] [2022-11-03 02:08:38,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:08:38,871 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:08:39,008 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_8760185d-0add-44d7-aa3f-b2bea1c3ca70/sv-benchmarks/c/product-lines/email_spec1_product12.cil.c[58861,58874] [2022-11-03 02:08:39,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:08:39,040 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:08:39,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:39 WrapperNode [2022-11-03 02:08:39,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:08:39,042 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:08:39,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:08:39,043 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:08:39,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:39" (1/1) ... [2022-11-03 02:08:39,078 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:39" (1/1) ... [2022-11-03 02:08:39,180 INFO L138 Inliner]: procedures = 122, calls = 186, calls flagged for inlining = 50, calls inlined = 40, statements flattened = 820 [2022-11-03 02:08:39,180 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:08:39,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:08:39,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:08:39,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:08:39,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:39" (1/1) ... [2022-11-03 02:08:39,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:39" (1/1) ... [2022-11-03 02:08:39,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:39" (1/1) ... [2022-11-03 02:08:39,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:39" (1/1) ... [2022-11-03 02:08:39,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:39" (1/1) ... [2022-11-03 02:08:39,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:39" (1/1) ... [2022-11-03 02:08:39,255 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:39" (1/1) ... [2022-11-03 02:08:39,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:39" (1/1) ... [2022-11-03 02:08:39,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:08:39,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:08:39,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:08:39,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:08:39,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:39" (1/1) ... [2022-11-03 02:08:39,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:08:39,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:08:39,328 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:08:39,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:08:39,386 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-03 02:08:39,387 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-03 02:08:39,387 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-03 02:08:39,387 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-03 02:08:39,387 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-03 02:08:39,387 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-03 02:08:39,387 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-03 02:08:39,388 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-03 02:08:39,388 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-03 02:08:39,388 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-03 02:08:39,388 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-03 02:08:39,388 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-03 02:08:39,388 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-03 02:08:39,389 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-03 02:08:39,389 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-03 02:08:39,389 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-03 02:08:39,389 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-03 02:08:39,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:08:39,389 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-03 02:08:39,389 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-03 02:08:39,390 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-03 02:08:39,390 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-03 02:08:39,390 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-03 02:08:39,390 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-03 02:08:39,390 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-03 02:08:39,390 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-03 02:08:39,390 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-03 02:08:39,391 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-03 02:08:39,391 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-03 02:08:39,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-03 02:08:39,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:08:39,391 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-03 02:08:39,391 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-03 02:08:39,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:08:39,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:08:39,588 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:08:39,591 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:08:40,479 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:08:40,871 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:08:40,872 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:08:40,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:08:40 BoogieIcfgContainer [2022-11-03 02:08:40,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:08:40,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:08:40,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:08:40,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:08:40,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:08:38" (1/3) ... [2022-11-03 02:08:40,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fab545a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:08:40, skipping insertion in model container [2022-11-03 02:08:40,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:39" (2/3) ... [2022-11-03 02:08:40,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fab545a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:08:40, skipping insertion in model container [2022-11-03 02:08:40,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:08:40" (3/3) ... [2022-11-03 02:08:40,887 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product12.cil.c [2022-11-03 02:08:40,905 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:08:40,905 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:08:40,996 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:08:41,002 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;@4626b60e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:08:41,003 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:08:41,013 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 84 states have (on average 1.3928571428571428) internal successors, (117), 88 states have internal predecessors, (117), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-11-03 02:08:41,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-03 02:08:41,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:08:41,031 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:08:41,032 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:08:41,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:08:41,040 INFO L85 PathProgramCache]: Analyzing trace with hash -241097185, now seen corresponding path program 1 times [2022-11-03 02:08:41,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:08:41,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222746188] [2022-11-03 02:08:41,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:41,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:08:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:41,394 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 02:08:41,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:08:41,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222746188] [2022-11-03 02:08:41,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222746188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:08:41,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:08:41,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:08:41,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290639950] [2022-11-03 02:08:41,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:08:41,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:08:41,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:08:41,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:08:41,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:08:41,433 INFO L87 Difference]: Start difference. First operand has 140 states, 84 states have (on average 1.3928571428571428) internal successors, (117), 88 states have internal predecessors, (117), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 02:08:41,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:08:41,527 INFO L93 Difference]: Finished difference Result 197 states and 268 transitions. [2022-11-03 02:08:41,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:08:41,529 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 53 [2022-11-03 02:08:41,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:08:41,540 INFO L225 Difference]: With dead ends: 197 [2022-11-03 02:08:41,540 INFO L226 Difference]: Without dead ends: 137 [2022-11-03 02:08:41,544 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 02:08:41,547 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:08:41,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 168 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:08:41,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-03 02:08:41,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2022-11-03 02:08:41,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 82 states have (on average 1.353658536585366) internal successors, (111), 85 states have internal predecessors, (111), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-11-03 02:08:41,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 188 transitions. [2022-11-03 02:08:41,648 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 188 transitions. Word has length 53 [2022-11-03 02:08:41,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:08:41,650 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 188 transitions. [2022-11-03 02:08:41,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 02:08:41,652 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 188 transitions. [2022-11-03 02:08:41,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-03 02:08:41,660 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:08:41,660 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:08:41,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:08:41,660 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:08:41,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:08:41,661 INFO L85 PathProgramCache]: Analyzing trace with hash -289282246, now seen corresponding path program 1 times [2022-11-03 02:08:41,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:08:41,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818280335] [2022-11-03 02:08:41,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:41,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:08:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:41,999 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 02:08:41,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:08:42,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818280335] [2022-11-03 02:08:42,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818280335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:08:42,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:08:42,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:08:42,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865947733] [2022-11-03 02:08:42,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:08:42,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:08:42,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:08:42,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:08:42,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:08:42,012 INFO L87 Difference]: Start difference. First operand 137 states and 188 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 02:08:42,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:08:42,102 INFO L93 Difference]: Finished difference Result 193 states and 256 transitions. [2022-11-03 02:08:42,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:08:42,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 54 [2022-11-03 02:08:42,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:08:42,105 INFO L225 Difference]: With dead ends: 193 [2022-11-03 02:08:42,105 INFO L226 Difference]: Without dead ends: 139 [2022-11-03 02:08:42,106 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 02:08:42,107 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:08:42,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 329 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:08:42,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-11-03 02:08:42,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2022-11-03 02:08:42,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 84 states have (on average 1.3452380952380953) internal successors, (113), 87 states have internal predecessors, (113), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-11-03 02:08:42,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 190 transitions. [2022-11-03 02:08:42,123 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 190 transitions. Word has length 54 [2022-11-03 02:08:42,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:08:42,123 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 190 transitions. [2022-11-03 02:08:42,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 02:08:42,124 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 190 transitions. [2022-11-03 02:08:42,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-03 02:08:42,126 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:08:42,126 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:08:42,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:08:42,127 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:08:42,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:08:42,128 INFO L85 PathProgramCache]: Analyzing trace with hash -899735755, now seen corresponding path program 1 times [2022-11-03 02:08:42,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:08:42,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770941844] [2022-11-03 02:08:42,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:42,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:08:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:42,243 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 02:08:42,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:08:42,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770941844] [2022-11-03 02:08:42,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770941844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:08:42,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:08:42,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:08:42,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942750420] [2022-11-03 02:08:42,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:08:42,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:08:42,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:08:42,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:08:42,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:08:42,248 INFO L87 Difference]: Start difference. First operand 139 states and 190 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 02:08:42,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:08:42,412 INFO L93 Difference]: Finished difference Result 308 states and 439 transitions. [2022-11-03 02:08:42,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:08:42,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 59 [2022-11-03 02:08:42,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:08:42,418 INFO L225 Difference]: With dead ends: 308 [2022-11-03 02:08:42,418 INFO L226 Difference]: Without dead ends: 187 [2022-11-03 02:08:42,422 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 02:08:42,428 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 57 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:08:42,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 346 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:08:42,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-11-03 02:08:42,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 182. [2022-11-03 02:08:42,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 116 states have (on average 1.4310344827586208) internal successors, (166), 119 states have internal predecessors, (166), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-11-03 02:08:42,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 265 transitions. [2022-11-03 02:08:42,461 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 265 transitions. Word has length 59 [2022-11-03 02:08:42,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:08:42,462 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 265 transitions. [2022-11-03 02:08:42,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 02:08:42,462 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 265 transitions. [2022-11-03 02:08:42,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-03 02:08:42,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:08:42,467 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:08:42,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:08:42,468 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:08:42,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:08:42,469 INFO L85 PathProgramCache]: Analyzing trace with hash -896142788, now seen corresponding path program 1 times [2022-11-03 02:08:42,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:08:42,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029677085] [2022-11-03 02:08:42,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:42,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:08:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:42,706 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 02:08:42,706 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:08:42,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029677085] [2022-11-03 02:08:42,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029677085] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:08:42,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248755013] [2022-11-03 02:08:42,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:42,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:08:42,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:08:42,709 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:08:42,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:08:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:43,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:08:43,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:08:43,103 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 02:08:43,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:08:43,191 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 02:08:43,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248755013] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:08:43,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1552049094] [2022-11-03 02:08:43,219 INFO L159 IcfgInterpreter]: Started Sifa with 49 locations of interest [2022-11-03 02:08:43,219 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:08:43,226 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:08:43,232 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:08:43,232 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:09:13,981 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-03 02:09:14,339 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-03 02:09:14,757 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:09:52,040 WARN L234 SmtUtils]: Spent 6.06s on a formula simplification. DAG size of input: 496 DAG size of output: 330 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:09:58,032 WARN L234 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 508 DAG size of output: 342 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:10:27,726 WARN L234 SmtUtils]: Spent 22.81s on a formula simplification. DAG size of input: 587 DAG size of output: 457 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:10:54,139 WARN L234 SmtUtils]: Spent 24.84s on a formula simplification. DAG size of input: 589 DAG size of output: 457 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:11:04,384 WARN L234 SmtUtils]: Spent 9.48s on a formula simplification. DAG size of input: 576 DAG size of output: 344 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:11:14,345 WARN L234 SmtUtils]: Spent 9.31s on a formula simplification. DAG size of input: 574 DAG size of output: 342 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:11:15,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1552049094] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:11:15,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:11:15,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-11-03 02:11:15,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177396615] [2022-11-03 02:11:15,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:11:15,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-03 02:11:15,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:11:15,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-03 02:11:15,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:11:15,895 INFO L87 Difference]: Start difference. First operand 182 states and 265 transitions. Second operand has 21 states, 16 states have (on average 2.0) internal successors, (32), 15 states have internal predecessors, (32), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2022-11-03 02:11:25,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:11:25,482 INFO L93 Difference]: Finished difference Result 443 states and 691 transitions. [2022-11-03 02:11:25,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 02:11:25,484 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.0) internal successors, (32), 15 states have internal predecessors, (32), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) Word has length 60 [2022-11-03 02:11:25,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:11:25,492 INFO L225 Difference]: With dead ends: 443 [2022-11-03 02:11:25,493 INFO L226 Difference]: Without dead ends: 279 [2022-11-03 02:11:25,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 121.1s TimeCoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:11:25,498 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 140 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 1720 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 2292 SdHoareTripleChecker+Invalid, 1733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:11:25,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 2292 Invalid, 1733 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 1720 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2022-11-03 02:11:25,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-11-03 02:11:25,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 205. [2022-11-03 02:11:25,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 138 states have (on average 1.4420289855072463) internal successors, (199), 141 states have internal predecessors, (199), 50 states have call successors, (50), 16 states have call predecessors, (50), 16 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-11-03 02:11:25,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 298 transitions. [2022-11-03 02:11:25,659 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 298 transitions. Word has length 60 [2022-11-03 02:11:25,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:11:25,660 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 298 transitions. [2022-11-03 02:11:25,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.0) internal successors, (32), 15 states have internal predecessors, (32), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2022-11-03 02:11:25,660 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 298 transitions. [2022-11-03 02:11:25,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-03 02:11:25,664 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:11:25,665 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:11:25,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-03 02:11:25,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:11:25,879 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:11:25,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:11:25,880 INFO L85 PathProgramCache]: Analyzing trace with hash -967381623, now seen corresponding path program 1 times [2022-11-03 02:11:25,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:11:25,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010941615] [2022-11-03 02:11:25,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:25,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:11:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:25,973 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 02:11:25,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:11:25,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010941615] [2022-11-03 02:11:25,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010941615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:11:25,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:11:25,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:11:25,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333887323] [2022-11-03 02:11:25,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:11:25,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:11:25,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:11:25,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:11:25,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:11:25,976 INFO L87 Difference]: Start difference. First operand 205 states and 298 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 02:11:26,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:11:26,280 INFO L93 Difference]: Finished difference Result 503 states and 760 transitions. [2022-11-03 02:11:26,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:11:26,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 65 [2022-11-03 02:11:26,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:11:26,284 INFO L225 Difference]: With dead ends: 503 [2022-11-03 02:11:26,284 INFO L226 Difference]: Without dead ends: 322 [2022-11-03 02:11:26,285 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 02:11:26,285 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 55 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:11:26,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 352 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:11:26,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-11-03 02:11:26,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 317. [2022-11-03 02:11:26,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 225 states have (on average 1.488888888888889) internal successors, (335), 228 states have internal predecessors, (335), 75 states have call successors, (75), 16 states have call predecessors, (75), 16 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2022-11-03 02:11:26,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 484 transitions. [2022-11-03 02:11:26,486 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 484 transitions. Word has length 65 [2022-11-03 02:11:26,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:11:26,486 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 484 transitions. [2022-11-03 02:11:26,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 02:11:26,487 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 484 transitions. [2022-11-03 02:11:26,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-03 02:11:26,489 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:11:26,489 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:11:26,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:11:26,489 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:11:26,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:11:26,490 INFO L85 PathProgramCache]: Analyzing trace with hash -757827437, now seen corresponding path program 1 times [2022-11-03 02:11:26,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:11:26,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795196569] [2022-11-03 02:11:26,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:26,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:11:26,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:26,642 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 02:11:26,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:11:26,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795196569] [2022-11-03 02:11:26,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795196569] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:11:26,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525091146] [2022-11-03 02:11:26,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:26,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:11:26,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:11:26,647 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:11:26,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:11:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:26,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:11:26,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:11:26,972 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 02:11:26,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:11:27,040 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 02:11:27,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525091146] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:11:27,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1960378420] [2022-11-03 02:11:27,043 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2022-11-03 02:11:27,043 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:11:27,044 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:11:27,044 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:11:27,044 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:12:09,393 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-11-03 02:12:09,699 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-11-03 02:12:10,062 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 248 for LOIs [2022-11-03 02:12:10,733 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 243 for LOIs [2022-11-03 02:12:15,247 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 226 for LOIs [2022-11-03 02:12:15,285 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 472 for LOIs [2022-11-03 02:12:18,948 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:12:59,085 WARN L234 SmtUtils]: Spent 6.17s on a formula simplification. DAG size of input: 496 DAG size of output: 330 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:13:05,218 WARN L234 SmtUtils]: Spent 5.81s on a formula simplification. DAG size of input: 508 DAG size of output: 342 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:13:24,235 WARN L234 SmtUtils]: Spent 11.85s on a formula simplification. DAG size of input: 592 DAG size of output: 341 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:13:49,551 WARN L234 SmtUtils]: Spent 23.97s on a formula simplification. DAG size of input: 594 DAG size of output: 465 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:14:18,223 WARN L234 SmtUtils]: Spent 14.51s on a formula simplification. DAG size of input: 472 DAG size of output: 360 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:14:44,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1960378420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:14:44,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:14:44,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [4, 4, 4] total 46 [2022-11-03 02:14:44,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261415760] [2022-11-03 02:14:44,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:14:44,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-03 02:14:44,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:14:44,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-03 02:14:44,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1941, Unknown=0, NotChecked=0, Total=2070 [2022-11-03 02:14:44,532 INFO L87 Difference]: Start difference. First operand 317 states and 484 transitions. Second operand has 41 states, 29 states have (on average 1.206896551724138) internal successors, (35), 27 states have internal predecessors, (35), 13 states have call successors, (13), 7 states have call predecessors, (13), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-03 02:15:09,090 WARN L234 SmtUtils]: Spent 19.22s on a formula simplification. DAG size of input: 577 DAG size of output: 437 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:15:31,731 WARN L234 SmtUtils]: Spent 9.78s on a formula simplification. DAG size of input: 595 DAG size of output: 426 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:15:53,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:53,894 INFO L93 Difference]: Finished difference Result 750 states and 1202 transitions. [2022-11-03 02:15:53,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-03 02:15:53,895 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 29 states have (on average 1.206896551724138) internal successors, (35), 27 states have internal predecessors, (35), 13 states have call successors, (13), 7 states have call predecessors, (13), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 66 [2022-11-03 02:15:53,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:53,899 INFO L225 Difference]: With dead ends: 750 [2022-11-03 02:15:53,899 INFO L226 Difference]: Without dead ends: 496 [2022-11-03 02:15:53,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 155 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 701 ImplicationChecksByTransitivity, 196.9s TimeCoverageRelationStatistics Valid=234, Invalid=3306, Unknown=0, NotChecked=0, Total=3540 [2022-11-03 02:15:53,902 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 263 mSDsluCounter, 3548 mSDsCounter, 0 mSdLazyCounter, 4549 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 3633 SdHoareTripleChecker+Invalid, 4589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 4549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:53,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 3633 Invalid, 4589 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [40 Valid, 4549 Invalid, 0 Unknown, 0 Unchecked, 17.4s Time] [2022-11-03 02:15:53,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-11-03 02:15:54,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 409. [2022-11-03 02:15:54,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 306 states have (on average 1.5359477124183007) internal successors, (470), 311 states have internal predecessors, (470), 83 states have call successors, (83), 21 states have call predecessors, (83), 19 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2022-11-03 02:15:54,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 635 transitions. [2022-11-03 02:15:54,163 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 635 transitions. Word has length 66 [2022-11-03 02:15:54,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:54,164 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 635 transitions. [2022-11-03 02:15:54,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 29 states have (on average 1.206896551724138) internal successors, (35), 27 states have internal predecessors, (35), 13 states have call successors, (13), 7 states have call predecessors, (13), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-03 02:15:54,165 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 635 transitions. [2022-11-03 02:15:54,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-03 02:15:54,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:54,170 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:15:54,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-03 02:15:54,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:15:54,375 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:54,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:54,376 INFO L85 PathProgramCache]: Analyzing trace with hash -125879669, now seen corresponding path program 1 times [2022-11-03 02:15:54,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:15:54,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498562313] [2022-11-03 02:15:54,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:54,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:15:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:54,552 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 02:15:54,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:15:54,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498562313] [2022-11-03 02:15:54,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498562313] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:15:54,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194541544] [2022-11-03 02:15:54,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:54,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:15:54,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:15:54,555 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:15:54,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:15:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:54,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 1000 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:15:54,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:15:54,848 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 02:15:54,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:15:54,907 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 02:15:54,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194541544] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:15:54,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [197429722] [2022-11-03 02:15:54,911 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2022-11-03 02:15:54,911 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:15:54,911 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:15:54,912 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:15:54,912 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:16:59,155 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-11-03 02:16:59,452 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-11-03 02:16:59,534 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 453 for LOIs [2022-11-03 02:16:59,911 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-03 02:17:00,240 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 456 for LOIs [2022-11-03 02:17:00,592 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:17:40,220 WARN L234 SmtUtils]: Spent 6.23s on a formula simplification. DAG size of input: 496 DAG size of output: 330 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:17:46,630 WARN L234 SmtUtils]: Spent 6.02s on a formula simplification. DAG size of input: 508 DAG size of output: 342 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:18:06,935 WARN L234 SmtUtils]: Spent 12.65s on a formula simplification. DAG size of input: 640 DAG size of output: 412 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:18:34,186 WARN L234 SmtUtils]: Spent 25.21s on a formula simplification. DAG size of input: 642 DAG size of output: 518 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:18:45,340 WARN L234 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 578 DAG size of output: 345 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:19:01,540 WARN L234 SmtUtils]: Spent 6.46s on a formula simplification. DAG size of input: 568 DAG size of output: 328 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:19:14,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [197429722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:19:14,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:19:14,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-11-03 02:19:14,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367299747] [2022-11-03 02:19:14,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:19:14,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-03 02:19:14,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:19:14,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-03 02:19:14,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-11-03 02:19:14,328 INFO L87 Difference]: Start difference. First operand 409 states and 635 transitions. Second operand has 30 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 10 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) [2022-11-03 02:19:28,190 WARN L234 SmtUtils]: Spent 9.08s on a formula simplification. DAG size of input: 631 DAG size of output: 370 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:19:43,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:19:43,276 INFO L93 Difference]: Finished difference Result 828 states and 1327 transitions. [2022-11-03 02:19:43,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-03 02:19:43,307 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 10 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) Word has length 69 [2022-11-03 02:19:43,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:19:43,312 INFO L225 Difference]: With dead ends: 828 [2022-11-03 02:19:43,312 INFO L226 Difference]: Without dead ends: 574 [2022-11-03 02:19:43,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 145.6s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-11-03 02:19:43,314 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 115 mSDsluCounter, 2663 mSDsCounter, 0 mSdLazyCounter, 2897 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 2778 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:19:43,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 2778 Invalid, 2913 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 2897 Invalid, 0 Unknown, 0 Unchecked, 16.3s Time] [2022-11-03 02:19:43,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-11-03 02:19:43,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 499. [2022-11-03 02:19:43,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 388 states have (on average 1.5515463917525774) internal successors, (602), 395 states have internal predecessors, (602), 88 states have call successors, (88), 24 states have call predecessors, (88), 22 states have return successors, (87), 81 states have call predecessors, (87), 87 states have call successors, (87) [2022-11-03 02:19:43,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 777 transitions. [2022-11-03 02:19:43,683 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 777 transitions. Word has length 69 [2022-11-03 02:19:43,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:19:43,684 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 777 transitions. [2022-11-03 02:19:43,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 10 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) [2022-11-03 02:19:43,684 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 777 transitions. [2022-11-03 02:19:43,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-03 02:19:43,687 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:19:43,688 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:19:43,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-03 02:19:43,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-03 02:19:43,903 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:19:43,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:19:43,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1350480569, now seen corresponding path program 1 times [2022-11-03 02:19:43,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:19:43,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163897923] [2022-11-03 02:19:43,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:43,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:19:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:44,051 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:19:44,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:19:44,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163897923] [2022-11-03 02:19:44,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163897923] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:19:44,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045962835] [2022-11-03 02:19:44,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:44,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:19:44,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:19:44,054 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:19:44,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8760185d-0add-44d7-aa3f-b2bea1c3ca70/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:19:44,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:44,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:19:44,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:19:44,371 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:19:44,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:19:44,442 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:19:44,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045962835] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:19:44,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1094519740] [2022-11-03 02:19:44,454 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2022-11-03 02:19:44,454 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:19:44,454 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:19:44,455 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:19:44,455 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:21:05,691 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-03 02:21:06,022 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-11-03 02:21:06,528 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 248 for LOIs [2022-11-03 02:21:07,248 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 243 for LOIs [2022-11-03 02:21:11,767 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 226 for LOIs [2022-11-03 02:21:11,802 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 472 for LOIs [2022-11-03 02:21:15,302 INFO L180 IcfgInterpreter]: Interpretation finished