./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b2243f2ebf184fce0ef7b08cdc971efef96ae919ab8c33e807ab93ab6dbfb0b7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 07:01:33,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:01:33,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:01:33,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:01:33,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:01:33,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:01:33,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:01:33,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:01:33,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:01:33,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:01:33,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:01:33,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:01:33,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:01:33,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:01:33,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:01:33,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:01:33,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:01:33,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:01:33,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:01:33,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:01:33,047 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:01:33,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:01:33,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:01:33,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:01:33,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:01:33,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:01:33,054 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:01:33,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:01:33,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:01:33,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:01:33,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:01:33,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:01:33,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:01:33,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:01:33,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:01:33,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:01:33,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:01:33,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:01:33,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:01:33,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:01:33,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:01:33,064 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 07:01:33,086 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:01:33,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:01:33,086 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:01:33,087 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:01:33,087 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:01:33,087 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:01:33,088 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:01:33,088 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:01:33,088 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:01:33,088 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:01:33,088 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:01:33,089 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:01:33,089 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:01:33,089 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:01:33,089 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:01:33,089 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:01:33,090 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:01:33,090 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:01:33,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:01:33,091 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:01:33,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:01:33,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:01:33,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:01:33,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:01:33,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:01:33,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:01:33,092 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:01:33,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:01:33,092 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:01:33,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:01:33,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:01:33,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:01:33,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:01:33,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:01:33,093 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:01:33,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:01:33,094 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:01:33,094 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:01:33,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:01:33,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:01:33,095 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:01:33,095 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_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2243f2ebf184fce0ef7b08cdc971efef96ae919ab8c33e807ab93ab6dbfb0b7 [2022-12-14 07:01:33,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:01:33,337 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:01:33,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:01:33,341 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:01:33,341 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:01:33,342 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec0_product40.cil.c [2022-12-14 07:01:35,904 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:01:36,118 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:01:36,118 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/sv-benchmarks/c/product-lines/email_spec0_product40.cil.c [2022-12-14 07:01:36,129 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/data/662cedeb7/8bbdfb52a6534d069391ea89243b0329/FLAG8ae4407b3 [2022-12-14 07:01:36,475 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/data/662cedeb7/8bbdfb52a6534d069391ea89243b0329 [2022-12-14 07:01:36,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:01:36,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:01:36,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:01:36,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:01:36,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:01:36,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:01:36" (1/1) ... [2022-12-14 07:01:36,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d76d460 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:01:36, skipping insertion in model container [2022-12-14 07:01:36,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:01:36" (1/1) ... [2022-12-14 07:01:36,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:01:36,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:01:36,725 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:01:36,730 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:01:36,736 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:01:36,745 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/sv-benchmarks/c/product-lines/email_spec0_product40.cil.c[7657,7670] [2022-12-14 07:01:36,766 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:01:36,769 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:01:36,770 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:01:36,772 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:01:36,780 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:01:36,782 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:01:36,832 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:01:36,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:01:36,902 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:01:36,913 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:01:36,914 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:01:36,916 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:01:36,919 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/sv-benchmarks/c/product-lines/email_spec0_product40.cil.c[7657,7670] [2022-12-14 07:01:36,921 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:01:36,922 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:01:36,922 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:01:36,923 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:01:36,927 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:01:36,928 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:01:36,947 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:01:36,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:01:36,988 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:01:36,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:01:36 WrapperNode [2022-12-14 07:01:36,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:01:36,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:01:36,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:01:36,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:01:36,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:01:36" (1/1) ... [2022-12-14 07:01:37,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:01:36" (1/1) ... [2022-12-14 07:01:37,055 INFO L138 Inliner]: procedures = 127, calls = 205, calls flagged for inlining = 52, calls inlined = 49, statements flattened = 907 [2022-12-14 07:01:37,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:01:37,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:01:37,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:01:37,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:01:37,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:01:36" (1/1) ... [2022-12-14 07:01:37,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:01:36" (1/1) ... [2022-12-14 07:01:37,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:01:36" (1/1) ... [2022-12-14 07:01:37,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:01:36" (1/1) ... [2022-12-14 07:01:37,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:01:36" (1/1) ... [2022-12-14 07:01:37,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:01:36" (1/1) ... [2022-12-14 07:01:37,101 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:01:36" (1/1) ... [2022-12-14 07:01:37,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:01:36" (1/1) ... [2022-12-14 07:01:37,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:01:37,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:01:37,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:01:37,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:01:37,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:01:36" (1/1) ... [2022-12-14 07:01:37,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:01:37,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:01:37,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:01:37,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:01:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 07:01:37,170 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 07:01:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 07:01:37,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 07:01:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 07:01:37,170 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 07:01:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-14 07:01:37,170 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-14 07:01:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 07:01:37,171 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 07:01:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 07:01:37,171 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 07:01:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 07:01:37,171 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 07:01:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 07:01:37,171 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 07:01:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 07:01:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 07:01:37,172 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 07:01:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-14 07:01:37,172 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-14 07:01:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 07:01:37,172 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 07:01:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:01:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 07:01:37,172 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 07:01:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 07:01:37,172 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 07:01:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 07:01:37,173 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 07:01:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 07:01:37,173 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 07:01:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 07:01:37,173 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 07:01:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 07:01:37,173 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 07:01:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 07:01:37,173 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 07:01:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:01:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 07:01:37,174 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 07:01:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 07:01:37,174 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 07:01:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:01:37,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:01:37,315 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:01:37,316 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:01:37,834 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:01:38,182 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:01:38,182 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 07:01:38,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:01:38 BoogieIcfgContainer [2022-12-14 07:01:38,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:01:38,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:01:38,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:01:38,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:01:38,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:01:36" (1/3) ... [2022-12-14 07:01:38,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a49987b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:01:38, skipping insertion in model container [2022-12-14 07:01:38,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:01:36" (2/3) ... [2022-12-14 07:01:38,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a49987b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:01:38, skipping insertion in model container [2022-12-14 07:01:38,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:01:38" (3/3) ... [2022-12-14 07:01:38,190 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product40.cil.c [2022-12-14 07:01:38,205 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:01:38,205 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 07:01:38,242 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:01:38,247 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;@106b4706, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:01:38,247 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 07:01:38,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 97 states have (on average 1.3195876288659794) internal successors, (128), 100 states have internal predecessors, (128), 52 states have call successors, (52), 20 states have call predecessors, (52), 20 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2022-12-14 07:01:38,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 07:01:38,261 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:01:38,262 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] [2022-12-14 07:01:38,262 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:01:38,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:01:38,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1406748060, now seen corresponding path program 1 times [2022-12-14 07:01:38,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:01:38,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694931903] [2022-12-14 07:01:38,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:01:38,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:01:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:01:38,473 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:01:38,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:01:38,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694931903] [2022-12-14 07:01:38,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694931903] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:01:38,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:01:38,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:01:38,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560602852] [2022-12-14 07:01:38,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:01:38,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 07:01:38,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:01:38,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 07:01:38,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 07:01:38,513 INFO L87 Difference]: Start difference. First operand has 171 states, 97 states have (on average 1.3195876288659794) internal successors, (128), 100 states have internal predecessors, (128), 52 states have call successors, (52), 20 states have call predecessors, (52), 20 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 07:01:38,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:01:38,613 INFO L93 Difference]: Finished difference Result 250 states and 335 transitions. [2022-12-14 07:01:38,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 07:01:38,615 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 67 [2022-12-14 07:01:38,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:01:38,622 INFO L225 Difference]: With dead ends: 250 [2022-12-14 07:01:38,622 INFO L226 Difference]: Without dead ends: 168 [2022-12-14 07:01:38,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 07:01:38,627 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:01:38,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 196 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:01:38,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-12-14 07:01:38,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2022-12-14 07:01:38,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 95 states have (on average 1.2842105263157895) internal successors, (122), 97 states have internal predecessors, (122), 52 states have call successors, (52), 20 states have call predecessors, (52), 20 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2022-12-14 07:01:38,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 225 transitions. [2022-12-14 07:01:38,665 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 225 transitions. Word has length 67 [2022-12-14 07:01:38,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:01:38,666 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 225 transitions. [2022-12-14 07:01:38,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 07:01:38,666 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 225 transitions. [2022-12-14 07:01:38,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-14 07:01:38,668 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:01:38,669 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] [2022-12-14 07:01:38,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:01:38,669 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:01:38,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:01:38,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1402500181, now seen corresponding path program 1 times [2022-12-14 07:01:38,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:01:38,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984408921] [2022-12-14 07:01:38,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:01:38,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:01:38,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:01:38,786 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:01:38,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:01:38,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984408921] [2022-12-14 07:01:38,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984408921] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:01:38,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:01:38,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:01:38,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025887585] [2022-12-14 07:01:38,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:01:38,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:01:38,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:01:38,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:01:38,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:01:38,790 INFO L87 Difference]: Start difference. First operand 168 states and 225 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 07:01:38,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:01:38,883 INFO L93 Difference]: Finished difference Result 246 states and 320 transitions. [2022-12-14 07:01:38,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:01:38,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 68 [2022-12-14 07:01:38,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:01:38,885 INFO L225 Difference]: With dead ends: 246 [2022-12-14 07:01:38,885 INFO L226 Difference]: Without dead ends: 170 [2022-12-14 07:01:38,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:01:38,887 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 0 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:01:38,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 385 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:01:38,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-12-14 07:01:38,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2022-12-14 07:01:38,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 97 states have (on average 1.2783505154639174) internal successors, (124), 99 states have internal predecessors, (124), 52 states have call successors, (52), 20 states have call predecessors, (52), 20 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2022-12-14 07:01:38,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 227 transitions. [2022-12-14 07:01:38,898 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 227 transitions. Word has length 68 [2022-12-14 07:01:38,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:01:38,899 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 227 transitions. [2022-12-14 07:01:38,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 07:01:38,899 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 227 transitions. [2022-12-14 07:01:38,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 07:01:38,901 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:01:38,901 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:01:38,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:01:38,901 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:01:38,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:01:38,901 INFO L85 PathProgramCache]: Analyzing trace with hash 444586040, now seen corresponding path program 1 times [2022-12-14 07:01:38,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:01:38,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367577012] [2022-12-14 07:01:38,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:01:38,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:01:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:01:38,966 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:01:38,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:01:38,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367577012] [2022-12-14 07:01:38,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367577012] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:01:38,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:01:38,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:01:38,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251960906] [2022-12-14 07:01:38,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:01:38,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:01:38,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:01:38,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:01:38,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:01:38,969 INFO L87 Difference]: Start difference. First operand 170 states and 227 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 07:01:39,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:01:39,069 INFO L93 Difference]: Finished difference Result 375 states and 521 transitions. [2022-12-14 07:01:39,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:01:39,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 73 [2022-12-14 07:01:39,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:01:39,072 INFO L225 Difference]: With dead ends: 375 [2022-12-14 07:01:39,072 INFO L226 Difference]: Without dead ends: 223 [2022-12-14 07:01:39,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:01:39,075 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 59 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:01:39,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 405 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:01:39,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-12-14 07:01:39,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 218. [2022-12-14 07:01:39,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 131 states have (on average 1.366412213740458) internal successors, (179), 133 states have internal predecessors, (179), 66 states have call successors, (66), 20 states have call predecessors, (66), 20 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-14 07:01:39,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 310 transitions. [2022-12-14 07:01:39,098 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 310 transitions. Word has length 73 [2022-12-14 07:01:39,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:01:39,099 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 310 transitions. [2022-12-14 07:01:39,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 07:01:39,099 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 310 transitions. [2022-12-14 07:01:39,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 07:01:39,102 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:01:39,102 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:01:39,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 07:01:39,102 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:01:39,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:01:39,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1126368708, now seen corresponding path program 1 times [2022-12-14 07:01:39,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:01:39,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548192427] [2022-12-14 07:01:39,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:01:39,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:01:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:01:39,261 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:01:39,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:01:39,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548192427] [2022-12-14 07:01:39,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548192427] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:01:39,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095670659] [2022-12-14 07:01:39,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:01:39,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:01:39,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:01:39,263 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:01:39,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 07:01:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:01:39,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 988 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:01:39,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:01:39,529 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:01:39,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:01:39,583 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:01:39,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095670659] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:01:39,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1185595473] [2022-12-14 07:01:39,604 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-12-14 07:01:39,604 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:01:39,607 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:01:39,611 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:01:39,611 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:02:05,320 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 07:02:05,600 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 07:02:05,876 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 246 for LOIs [2022-12-14 07:02:07,244 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 248 for LOIs [2022-12-14 07:02:07,847 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 251 for LOIs [2022-12-14 07:02:10,800 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 239 for LOIs [2022-12-14 07:02:10,835 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 468 for LOIs [2022-12-14 07:02:15,197 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 236 for LOIs [2022-12-14 07:02:15,237 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 228 for LOIs [2022-12-14 07:02:15,272 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:02:55,431 WARN L233 SmtUtils]: Spent 10.88s on a formula simplification. DAG size of input: 595 DAG size of output: 468 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:03:58,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1185595473] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:03:58,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:03:58,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [4, 4, 4] total 53 [2022-12-14 07:03:58,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753396777] [2022-12-14 07:03:58,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:03:58,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-12-14 07:03:58,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:03:58,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-12-14 07:03:58,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=2609, Unknown=0, NotChecked=0, Total=2756 [2022-12-14 07:03:58,713 INFO L87 Difference]: Start difference. First operand 218 states and 310 transitions. Second operand has 48 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 30 states have internal predecessors, (38), 15 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2022-12-14 07:04:07,373 WARN L233 SmtUtils]: Spent 6.41s on a formula simplification. DAG size of input: 524 DAG size of output: 398 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:04:26,381 WARN L233 SmtUtils]: Spent 6.74s on a formula simplification. DAG size of input: 533 DAG size of output: 412 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:04:33,401 WARN L233 SmtUtils]: Spent 6.17s on a formula simplification. DAG size of input: 593 DAG size of output: 389 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:04:50,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:50,715 INFO L93 Difference]: Finished difference Result 577 states and 888 transitions. [2022-12-14 07:04:50,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-12-14 07:04:50,716 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 30 states have internal predecessors, (38), 15 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 74 [2022-12-14 07:04:50,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:50,718 INFO L225 Difference]: With dead ends: 577 [2022-12-14 07:04:50,718 INFO L226 Difference]: Without dead ends: 377 [2022-12-14 07:04:50,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 172 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 824 ImplicationChecksByTransitivity, 136.7s TimeCoverageRelationStatistics Valid=215, Invalid=3567, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 07:04:50,720 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 171 mSDsluCounter, 5116 mSDsCounter, 0 mSdLazyCounter, 6651 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 5350 SdHoareTripleChecker+Invalid, 6678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 6651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:50,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 5350 Invalid, 6678 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [27 Valid, 6651 Invalid, 0 Unknown, 0 Unchecked, 18.3s Time] [2022-12-14 07:04:50,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-12-14 07:04:50,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 274. [2022-12-14 07:04:50,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 173 states have (on average 1.3583815028901733) internal successors, (235), 176 states have internal predecessors, (235), 74 states have call successors, (74), 28 states have call predecessors, (74), 26 states have return successors, (74), 69 states have call predecessors, (74), 73 states have call successors, (74) [2022-12-14 07:04:50,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 383 transitions. [2022-12-14 07:04:50,840 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 383 transitions. Word has length 74 [2022-12-14 07:04:50,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:50,841 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 383 transitions. [2022-12-14 07:04:50,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 30 states have internal predecessors, (38), 15 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2022-12-14 07:04:50,841 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 383 transitions. [2022-12-14 07:04:50,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 07:04:50,843 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:50,843 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:04:50,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 07:04:51,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:04:51,045 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:04:51,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:51,047 INFO L85 PathProgramCache]: Analyzing trace with hash -152082523, now seen corresponding path program 1 times [2022-12-14 07:04:51,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:51,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422413079] [2022-12-14 07:04:51,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:51,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:51,179 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 07:04:51,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:51,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422413079] [2022-12-14 07:04:51,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422413079] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:04:51,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:04:51,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:04:51,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788136619] [2022-12-14 07:04:51,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:04:51,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:04:51,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:51,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:04:51,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:04:51,182 INFO L87 Difference]: Start difference. First operand 274 states and 383 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 07:04:51,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:51,515 INFO L93 Difference]: Finished difference Result 650 states and 946 transitions. [2022-12-14 07:04:51,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:04:51,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 79 [2022-12-14 07:04:51,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:51,520 INFO L225 Difference]: With dead ends: 650 [2022-12-14 07:04:51,520 INFO L226 Difference]: Without dead ends: 402 [2022-12-14 07:04:51,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:04:51,522 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 57 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:51,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 416 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:04:51,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-12-14 07:04:51,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 395. [2022-12-14 07:04:51,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 263 states have (on average 1.4258555133079849) internal successors, (375), 266 states have internal predecessors, (375), 105 states have call successors, (105), 28 states have call predecessors, (105), 26 states have return successors, (105), 100 states have call predecessors, (105), 104 states have call successors, (105) [2022-12-14 07:04:51,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 585 transitions. [2022-12-14 07:04:51,728 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 585 transitions. Word has length 79 [2022-12-14 07:04:51,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:51,728 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 585 transitions. [2022-12-14 07:04:51,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 07:04:51,728 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 585 transitions. [2022-12-14 07:04:51,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-14 07:04:51,730 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:51,731 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:04:51,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 07:04:51,731 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:04:51,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:51,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1628986316, now seen corresponding path program 1 times [2022-12-14 07:04:51,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:51,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524585744] [2022-12-14 07:04:51,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:51,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:51,869 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 07:04:51,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:51,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524585744] [2022-12-14 07:04:51,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524585744] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:04:51,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916547695] [2022-12-14 07:04:51,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:51,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:04:51,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:04:51,870 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:04:51,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 07:04:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:52,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 1009 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:04:52,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:04:52,088 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 07:04:52,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:04:52,129 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 07:04:52,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916547695] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:04:52,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2052120147] [2022-12-14 07:04:52,133 INFO L159 IcfgInterpreter]: Started Sifa with 65 locations of interest [2022-12-14 07:04:52,133 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:04:52,134 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:04:52,134 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:04:52,134 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:05:35,068 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 07:05:35,352 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 450 for LOIs [2022-12-14 07:05:35,644 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:06:16,395 WARN L233 SmtUtils]: Spent 7.94s on a formula simplification. DAG size of input: 583 DAG size of output: 380 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:06:30,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2052120147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:06:30,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:06:30,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 07:06:30,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399220280] [2022-12-14 07:06:30,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:06:30,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 07:06:30,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:06:30,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 07:06:30,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=768, Unknown=0, NotChecked=0, Total=870 [2022-12-14 07:06:30,460 INFO L87 Difference]: Start difference. First operand 395 states and 585 transitions. Second operand has 25 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-12-14 07:07:02,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:07:02,852 INFO L93 Difference]: Finished difference Result 784 states and 1198 transitions. [2022-12-14 07:07:02,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 07:07:02,853 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 80 [2022-12-14 07:07:02,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:07:02,854 INFO L225 Difference]: With dead ends: 784 [2022-12-14 07:07:02,854 INFO L226 Difference]: Without dead ends: 484 [2022-12-14 07:07:02,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 79.9s TimeCoverageRelationStatistics Valid=193, Invalid=1289, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 07:07:02,856 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 189 mSDsluCounter, 2878 mSDsCounter, 0 mSdLazyCounter, 2246 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 3069 SdHoareTripleChecker+Invalid, 2269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:07:02,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 3069 Invalid, 2269 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 2246 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-12-14 07:07:02,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2022-12-14 07:07:03,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 425. [2022-12-14 07:07:03,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 291 states have (on average 1.429553264604811) internal successors, (416), 294 states have internal predecessors, (416), 106 states have call successors, (106), 29 states have call predecessors, (106), 27 states have return successors, (106), 101 states have call predecessors, (106), 105 states have call successors, (106) [2022-12-14 07:07:03,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 628 transitions. [2022-12-14 07:07:03,074 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 628 transitions. Word has length 80 [2022-12-14 07:07:03,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:07:03,075 INFO L495 AbstractCegarLoop]: Abstraction has 425 states and 628 transitions. [2022-12-14 07:07:03,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-12-14 07:07:03,075 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 628 transitions. [2022-12-14 07:07:03,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 07:07:03,076 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:07:03,076 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:07:03,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 07:07:03,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:07:03,277 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:07:03,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:07:03,277 INFO L85 PathProgramCache]: Analyzing trace with hash 941134367, now seen corresponding path program 1 times [2022-12-14 07:07:03,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:07:03,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931296224] [2022-12-14 07:07:03,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:07:03,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:07:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:07:03,386 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:07:03,386 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:07:03,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931296224] [2022-12-14 07:07:03,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931296224] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:07:03,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875246495] [2022-12-14 07:07:03,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:07:03,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:07:03,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:07:03,388 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:07:03,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 07:07:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:07:03,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 1115 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:07:03,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:07:03,609 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:07:03,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:07:03,649 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:07:03,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875246495] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:07:03,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1600060421] [2022-12-14 07:07:03,652 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2022-12-14 07:07:03,653 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:07:03,653 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:07:03,653 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:07:03,653 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:08:02,389 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 07:08:02,675 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 234 for LOIs [2022-12-14 07:08:02,736 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 452 for LOIs [2022-12-14 07:08:03,047 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 450 for LOIs [2022-12-14 07:08:03,366 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 07:08:03,650 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:08:40,664 WARN L233 SmtUtils]: Spent 5.70s on a formula simplification. DAG size of input: 636 DAG size of output: 408 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:08:55,482 WARN L233 SmtUtils]: Spent 14.52s on a formula simplification. DAG size of input: 638 DAG size of output: 514 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:09:14,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1600060421] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:09:14,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:09:14,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-12-14 07:09:14,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144388701] [2022-12-14 07:09:14,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:09:14,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 07:09:14,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:09:14,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 07:09:14,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=1021, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 07:09:14,231 INFO L87 Difference]: Start difference. First operand 425 states and 628 transitions. Second operand has 29 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 17 states have internal predecessors, (41), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-12-14 07:09:31,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:09:31,294 INFO L93 Difference]: Finished difference Result 819 states and 1249 transitions. [2022-12-14 07:09:31,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 07:09:31,295 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 17 states have internal predecessors, (41), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 83 [2022-12-14 07:09:31,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:09:31,297 INFO L225 Difference]: With dead ends: 819 [2022-12-14 07:09:31,297 INFO L226 Difference]: Without dead ends: 519 [2022-12-14 07:09:31,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 218 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 77.9s TimeCoverageRelationStatistics Valid=118, Invalid=1142, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 07:09:31,299 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 63 mSDsluCounter, 3246 mSDsCounter, 0 mSdLazyCounter, 3076 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 3437 SdHoareTripleChecker+Invalid, 3085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:09:31,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 3437 Invalid, 3085 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 3076 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2022-12-14 07:09:31,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-12-14 07:09:31,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 463. [2022-12-14 07:09:31,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 323 states have (on average 1.4272445820433437) internal successors, (461), 326 states have internal predecessors, (461), 109 states have call successors, (109), 32 states have call predecessors, (109), 30 states have return successors, (109), 104 states have call predecessors, (109), 108 states have call successors, (109) [2022-12-14 07:09:31,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 679 transitions. [2022-12-14 07:09:31,602 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 679 transitions. Word has length 83 [2022-12-14 07:09:31,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:09:31,602 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 679 transitions. [2022-12-14 07:09:31,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 17 states have internal predecessors, (41), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-12-14 07:09:31,603 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 679 transitions. [2022-12-14 07:09:31,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-12-14 07:09:31,604 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:09:31,604 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:09:31,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 07:09:31,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:09:31,805 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:09:31,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:09:31,806 INFO L85 PathProgramCache]: Analyzing trace with hash 2001215452, now seen corresponding path program 1 times [2022-12-14 07:09:31,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:09:31,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704620956] [2022-12-14 07:09:31,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:09:31,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:09:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:09:31,905 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:09:31,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:09:31,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704620956] [2022-12-14 07:09:31,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704620956] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:09:31,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300004316] [2022-12-14 07:09:31,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:09:31,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:09:31,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:09:31,907 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:09:31,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 07:09:32,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:09:32,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:09:32,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:09:32,107 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:09:32,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:09:32,147 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:09:32,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300004316] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:09:32,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [732509588] [2022-12-14 07:09:32,150 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2022-12-14 07:09:32,150 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:09:32,150 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:09:32,150 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:09:32,150 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:10:34,584 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 07:10:34,864 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 07:10:35,144 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 247 for LOIs [2022-12-14 07:10:36,517 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 247 for LOIs [2022-12-14 07:10:37,113 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 252 for LOIs [2022-12-14 07:10:42,125 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 240 for LOIs [2022-12-14 07:10:42,154 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 240 for LOIs [2022-12-14 07:10:42,189 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 469 for LOIs [2022-12-14 07:10:46,661 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 474 for LOIs [2022-12-14 07:10:48,420 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 229 for LOIs [2022-12-14 07:10:48,456 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:11:43,053 WARN L233 SmtUtils]: Spent 5.94s on a formula simplification. DAG size of input: 579 DAG size of output: 436 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:11:48,542 WARN L233 SmtUtils]: Spent 5.22s on a formula simplification. DAG size of input: 577 DAG size of output: 434 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:12:16,138 WARN L233 SmtUtils]: Spent 7.26s on a formula simplification. DAG size of input: 469 DAG size of output: 360 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:13:01,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [732509588] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:13:01,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:13:01,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [4, 4, 4] total 66 [2022-12-14 07:13:01,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450377657] [2022-12-14 07:13:01,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:13:01,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-12-14 07:13:01,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:13:01,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-12-14 07:13:01,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=4094, Unknown=0, NotChecked=0, Total=4290 [2022-12-14 07:13:01,267 INFO L87 Difference]: Start difference. First operand 463 states and 679 transitions. Second operand has 61 states, 43 states have (on average 1.069767441860465) internal successors, (46), 40 states have internal predecessors, (46), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 07:14:17,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:14:17,667 INFO L93 Difference]: Finished difference Result 915 states and 1378 transitions. [2022-12-14 07:14:17,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-12-14 07:14:17,667 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 43 states have (on average 1.069767441860465) internal successors, (46), 40 states have internal predecessors, (46), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 82 [2022-12-14 07:14:17,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:14:17,670 INFO L225 Difference]: With dead ends: 915 [2022-12-14 07:14:17,670 INFO L226 Difference]: Without dead ends: 615 [2022-12-14 07:14:17,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 182 SyntacticMatches, 2 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1902 ImplicationChecksByTransitivity, 190.5s TimeCoverageRelationStatistics Valid=592, Invalid=7418, Unknown=0, NotChecked=0, Total=8010 [2022-12-14 07:14:17,674 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 397 mSDsluCounter, 4783 mSDsCounter, 0 mSdLazyCounter, 6901 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 4988 SdHoareTripleChecker+Invalid, 6936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 6901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:14:17,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 4988 Invalid, 6936 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 6901 Invalid, 0 Unknown, 0 Unchecked, 17.9s Time] [2022-12-14 07:14:17,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2022-12-14 07:14:18,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 570. [2022-12-14 07:14:18,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 401 states have (on average 1.399002493765586) internal successors, (561), 406 states have internal predecessors, (561), 127 states have call successors, (127), 47 states have call predecessors, (127), 41 states have return successors, (128), 116 states have call predecessors, (128), 126 states have call successors, (128) [2022-12-14 07:14:18,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 816 transitions. [2022-12-14 07:14:18,114 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 816 transitions. Word has length 82 [2022-12-14 07:14:18,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:14:18,114 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 816 transitions. [2022-12-14 07:14:18,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 43 states have (on average 1.069767441860465) internal successors, (46), 40 states have internal predecessors, (46), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 07:14:18,114 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 816 transitions. [2022-12-14 07:14:18,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 07:14:18,117 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:14:18,117 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:14:18,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 07:14:18,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 07:14:18,319 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:14:18,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:14:18,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1571774868, now seen corresponding path program 1 times [2022-12-14 07:14:18,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:14:18,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454247247] [2022-12-14 07:14:18,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:14:18,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:14:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:14:18,450 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 07:14:18,451 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:14:18,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454247247] [2022-12-14 07:14:18,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454247247] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:14:18,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975018321] [2022-12-14 07:14:18,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:14:18,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:14:18,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:14:18,452 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:14:18,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fbf77-9f16-4a37-bd64-13344a189bb2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 07:14:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:14:18,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:14:18,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:14:18,669 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 07:14:18,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:14:18,705 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 07:14:18,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975018321] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:14:18,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2026669788] [2022-12-14 07:14:18,707 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2022-12-14 07:14:18,707 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:14:18,707 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:14:18,707 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:14:18,707 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:14:41,456 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 07:14:41,745 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 245 for LOIs [2022-12-14 07:14:43,054 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 07:14:43,339 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 245 for LOIs [2022-12-14 07:14:43,929 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 250 for LOIs [2022-12-14 07:15:01,611 INFO L197 IcfgInterpreter]: Interpreting procedure queue with input of size 448 for LOIs [2022-12-14 07:15:01,870 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailFrom with input of size 439 for LOIs [2022-12-14 07:15:02,127 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 238 for LOIs [2022-12-14 07:15:02,163 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 469 for LOIs [2022-12-14 07:15:05,200 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 470 for LOIs [2022-12-14 07:15:07,876 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 225 for LOIs [2022-12-14 07:15:07,910 INFO L180 IcfgInterpreter]: Interpretation finished