./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product12.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product12.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f43e7267ed715243a41104ad5703ed473575064952f167333067630dfd5e9da --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:08:09,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:08:09,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:08:09,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:08:09,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:08:09,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:08:09,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:08:09,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:08:09,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:08:09,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:08:09,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:08:09,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:08:09,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:08:09,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:08:09,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:08:09,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:08:09,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:08:09,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:08:09,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:08:09,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:08:09,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:08:09,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:08:09,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:08:09,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:08:09,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:08:09,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:08:09,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:08:09,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:08:09,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:08:09,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:08:09,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:08:09,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:08:09,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:08:09,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:08:09,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:08:09,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:08:09,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:08:09,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:08:09,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:08:09,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:08:09,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:08:09,111 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 00:08:09,157 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:08:09,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:08:09,158 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:08:09,159 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:08:09,160 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:08:09,160 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:08:09,160 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:08:09,160 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:08:09,161 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:08:09,161 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:08:09,162 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:08:09,162 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:08:09,163 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:08:09,163 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:08:09,163 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:08:09,164 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:08:09,164 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:08:09,164 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:08:09,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:08:09,165 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:08:09,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:08:09,166 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:08:09,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:08:09,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:08:09,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:08:09,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:08:09,168 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:08:09,168 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:08:09,168 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:08:09,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:08:09,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:08:09,169 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:08:09,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:08:09,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:08:09,170 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:08:09,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:08:09,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:08:09,171 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:08:09,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:08:09,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:08:09,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:08:09,172 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_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f43e7267ed715243a41104ad5703ed473575064952f167333067630dfd5e9da [2022-11-26 00:08:09,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:08:09,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:08:09,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:08:09,511 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:08:09,512 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:08:09,513 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/product-lines/email_spec1_product12.cil.c [2022-11-26 00:08:12,712 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:08:12,984 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:08:12,984 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/sv-benchmarks/c/product-lines/email_spec1_product12.cil.c [2022-11-26 00:08:13,011 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/data/4521cf086/9d67db57faed4583943f3f897641c261/FLAGb17194455 [2022-11-26 00:08:13,030 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/data/4521cf086/9d67db57faed4583943f3f897641c261 [2022-11-26 00:08:13,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:08:13,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:08:13,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:08:13,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:08:13,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:08:13,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:08:13" (1/1) ... [2022-11-26 00:08:13,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@819d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:13, skipping insertion in model container [2022-11-26 00:08:13,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:08:13" (1/1) ... [2022-11-26 00:08:13,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:08:13,135 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:08:13,393 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:08:13,405 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:08:13,419 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:08:13,591 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:08:13,595 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:08:13,670 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_4bfb0cf4-9cc4-4b24-a222-edba25456941/sv-benchmarks/c/product-lines/email_spec1_product12.cil.c[58861,58874] [2022-11-26 00:08:13,685 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:08:13,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:08:13,700 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:08:13,722 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:08:13,724 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:08:13,726 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:08:13,760 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:08:13,763 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:08:13,796 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_4bfb0cf4-9cc4-4b24-a222-edba25456941/sv-benchmarks/c/product-lines/email_spec1_product12.cil.c[58861,58874] [2022-11-26 00:08:13,801 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:08:13,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:08:13,850 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:08:13,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:13 WrapperNode [2022-11-26 00:08:13,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:08:13,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:08:13,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:08:13,853 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:08:13,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:13" (1/1) ... [2022-11-26 00:08:13,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:13" (1/1) ... [2022-11-26 00:08:13,970 INFO L138 Inliner]: procedures = 122, calls = 186, calls flagged for inlining = 50, calls inlined = 40, statements flattened = 820 [2022-11-26 00:08:13,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:08:13,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:08:13,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:08:13,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:08:13,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:13" (1/1) ... [2022-11-26 00:08:13,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:13" (1/1) ... [2022-11-26 00:08:14,003 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:13" (1/1) ... [2022-11-26 00:08:14,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:13" (1/1) ... [2022-11-26 00:08:14,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:13" (1/1) ... [2022-11-26 00:08:14,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:13" (1/1) ... [2022-11-26 00:08:14,063 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:13" (1/1) ... [2022-11-26 00:08:14,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:13" (1/1) ... [2022-11-26 00:08:14,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:08:14,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:08:14,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:08:14,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:08:14,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:13" (1/1) ... [2022-11-26 00:08:14,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:08:14,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:08:14,157 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:08:14,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:08:14,209 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-26 00:08:14,209 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-26 00:08:14,209 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-26 00:08:14,209 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-26 00:08:14,209 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-26 00:08:14,210 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-26 00:08:14,210 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-26 00:08:14,210 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-26 00:08:14,210 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-26 00:08:14,211 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-26 00:08:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-26 00:08:14,212 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-26 00:08:14,212 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-26 00:08:14,212 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-26 00:08:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-26 00:08:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-26 00:08:14,213 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-26 00:08:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:08:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-26 00:08:14,214 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-26 00:08:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-26 00:08:14,214 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-26 00:08:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-26 00:08:14,215 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-26 00:08:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-26 00:08:14,215 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-26 00:08:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-26 00:08:14,215 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-26 00:08:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-26 00:08:14,216 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-26 00:08:14,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:08:14,216 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-26 00:08:14,216 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-26 00:08:14,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:08:14,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:08:14,423 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:08:14,426 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:08:15,312 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:08:15,733 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:08:15,733 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:08:15,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:08:15 BoogieIcfgContainer [2022-11-26 00:08:15,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:08:15,739 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:08:15,739 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:08:15,743 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:08:15,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:08:13" (1/3) ... [2022-11-26 00:08:15,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b432b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:08:15, skipping insertion in model container [2022-11-26 00:08:15,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:13" (2/3) ... [2022-11-26 00:08:15,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b432b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:08:15, skipping insertion in model container [2022-11-26 00:08:15,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:08:15" (3/3) ... [2022-11-26 00:08:15,748 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product12.cil.c [2022-11-26 00:08:15,768 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:08:15,768 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:08:15,828 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:08:15,835 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;@3aa39246, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:08:15,836 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:08:15,842 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 84 states have (on average 1.3928571428571428) internal successors, (117), 88 states have internal predecessors, (117), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-11-26 00:08:15,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-26 00:08:15,854 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:08:15,855 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:08:15,856 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:08:15,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:08:15,861 INFO L85 PathProgramCache]: Analyzing trace with hash -241097185, now seen corresponding path program 1 times [2022-11-26 00:08:15,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:08:15,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766202131] [2022-11-26 00:08:15,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:15,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:08:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:16,249 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-26 00:08:16,250 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:08:16,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766202131] [2022-11-26 00:08:16,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766202131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:08:16,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:08:16,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:08:16,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971541009] [2022-11-26 00:08:16,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:08:16,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:08:16,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:08:16,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:08:16,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:08:16,324 INFO L87 Difference]: Start difference. First operand has 140 states, 84 states have (on average 1.3928571428571428) internal successors, (117), 88 states have internal predecessors, (117), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-26 00:08:16,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:08:16,497 INFO L93 Difference]: Finished difference Result 197 states and 268 transitions. [2022-11-26 00:08:16,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:08:16,500 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 53 [2022-11-26 00:08:16,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:08:16,520 INFO L225 Difference]: With dead ends: 197 [2022-11-26 00:08:16,520 INFO L226 Difference]: Without dead ends: 137 [2022-11-26 00:08:16,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:08:16,530 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:08:16,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 168 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:08:16,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-26 00:08:16,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2022-11-26 00:08:16,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 82 states have (on average 1.353658536585366) internal successors, (111), 85 states have internal predecessors, (111), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-11-26 00:08:16,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 188 transitions. [2022-11-26 00:08:16,592 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 188 transitions. Word has length 53 [2022-11-26 00:08:16,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:08:16,595 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 188 transitions. [2022-11-26 00:08:16,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-26 00:08:16,595 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 188 transitions. [2022-11-26 00:08:16,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-26 00:08:16,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:08:16,599 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:08:16,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:08:16,600 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:08:16,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:08:16,600 INFO L85 PathProgramCache]: Analyzing trace with hash -289282246, now seen corresponding path program 1 times [2022-11-26 00:08:16,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:08:16,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319472618] [2022-11-26 00:08:16,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:16,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:08:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:16,829 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-26 00:08:16,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:08:16,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319472618] [2022-11-26 00:08:16,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319472618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:08:16,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:08:16,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:08:16,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384439502] [2022-11-26 00:08:16,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:08:16,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:08:16,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:08:16,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:08:16,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:08:16,834 INFO L87 Difference]: Start difference. First operand 137 states and 188 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-26 00:08:16,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:08:16,929 INFO L93 Difference]: Finished difference Result 193 states and 256 transitions. [2022-11-26 00:08:16,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:08:16,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 54 [2022-11-26 00:08:16,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:08:16,932 INFO L225 Difference]: With dead ends: 193 [2022-11-26 00:08:16,932 INFO L226 Difference]: Without dead ends: 139 [2022-11-26 00:08:16,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:08:16,935 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:08:16,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 329 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:08:16,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-11-26 00:08:16,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2022-11-26 00:08:16,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 84 states have (on average 1.3452380952380953) internal successors, (113), 87 states have internal predecessors, (113), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-11-26 00:08:16,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 190 transitions. [2022-11-26 00:08:16,949 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 190 transitions. Word has length 54 [2022-11-26 00:08:16,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:08:16,950 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 190 transitions. [2022-11-26 00:08:16,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-26 00:08:16,951 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 190 transitions. [2022-11-26 00:08:16,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-26 00:08:16,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:08:16,953 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:08:16,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:08:16,954 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:08:16,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:08:16,955 INFO L85 PathProgramCache]: Analyzing trace with hash -899735755, now seen corresponding path program 1 times [2022-11-26 00:08:16,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:08:16,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648792407] [2022-11-26 00:08:16,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:16,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:08:16,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:17,050 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-26 00:08:17,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:08:17,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648792407] [2022-11-26 00:08:17,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648792407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:08:17,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:08:17,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:08:17,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565026267] [2022-11-26 00:08:17,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:08:17,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:08:17,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:08:17,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:08:17,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:08:17,054 INFO L87 Difference]: Start difference. First operand 139 states and 190 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-26 00:08:17,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:08:17,158 INFO L93 Difference]: Finished difference Result 308 states and 439 transitions. [2022-11-26 00:08:17,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:08:17,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 59 [2022-11-26 00:08:17,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:08:17,187 INFO L225 Difference]: With dead ends: 308 [2022-11-26 00:08:17,187 INFO L226 Difference]: Without dead ends: 187 [2022-11-26 00:08:17,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:08:17,190 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 57 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:08:17,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 346 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:08:17,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-11-26 00:08:17,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 182. [2022-11-26 00:08:17,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 116 states have (on average 1.4310344827586208) internal successors, (166), 119 states have internal predecessors, (166), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-11-26 00:08:17,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 265 transitions. [2022-11-26 00:08:17,232 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 265 transitions. Word has length 59 [2022-11-26 00:08:17,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:08:17,233 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 265 transitions. [2022-11-26 00:08:17,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-26 00:08:17,233 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 265 transitions. [2022-11-26 00:08:17,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-26 00:08:17,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:08:17,244 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:08:17,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:08:17,245 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:08:17,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:08:17,246 INFO L85 PathProgramCache]: Analyzing trace with hash -896142788, now seen corresponding path program 1 times [2022-11-26 00:08:17,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:08:17,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902226248] [2022-11-26 00:08:17,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:17,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:08:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:17,510 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-26 00:08:17,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:08:17,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902226248] [2022-11-26 00:08:17,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902226248] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:08:17,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100262633] [2022-11-26 00:08:17,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:17,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:08:17,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:08:17,516 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:08:17,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:08:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:17,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:08:17,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:08:17,993 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-26 00:08:17,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:08:18,090 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-26 00:08:18,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100262633] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:08:18,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1654339074] [2022-11-26 00:08:18,119 INFO L159 IcfgInterpreter]: Started Sifa with 49 locations of interest [2022-11-26 00:08:18,120 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:08:18,129 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:08:18,136 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:08:18,137 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:08:52,254 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-26 00:08:52,631 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-26 00:08:53,003 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:09:31,578 WARN L233 SmtUtils]: Spent 6.33s on a formula simplification. DAG size of input: 496 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:09:37,802 WARN L233 SmtUtils]: Spent 6.01s on a formula simplification. DAG size of input: 508 DAG size of output: 342 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:10:04,662 WARN L233 SmtUtils]: Spent 20.65s on a formula simplification. DAG size of input: 587 DAG size of output: 457 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:10:25,713 WARN L233 SmtUtils]: Spent 20.69s on a formula simplification. DAG size of input: 589 DAG size of output: 457 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:10:33,881 WARN L233 SmtUtils]: Spent 7.83s on a formula simplification. DAG size of input: 576 DAG size of output: 344 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:10:41,998 WARN L233 SmtUtils]: Spent 7.76s on a formula simplification. DAG size of input: 574 DAG size of output: 342 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:10:43,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1654339074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:10:43,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:10:43,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-11-26 00:10:43,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886380825] [2022-11-26 00:10:43,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:10:43,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-26 00:10:43,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:10:43,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-26 00:10:43,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2022-11-26 00:10:43,381 INFO L87 Difference]: Start difference. First operand 182 states and 265 transitions. Second operand has 21 states, 16 states have (on average 2.0) internal successors, (32), 15 states have internal predecessors, (32), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2022-11-26 00:10:51,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:10:51,325 INFO L93 Difference]: Finished difference Result 443 states and 691 transitions. [2022-11-26 00:10:51,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-26 00:10:51,327 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.0) internal successors, (32), 15 states have internal predecessors, (32), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) Word has length 60 [2022-11-26 00:10:51,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:10:51,329 INFO L225 Difference]: With dead ends: 443 [2022-11-26 00:10:51,329 INFO L226 Difference]: Without dead ends: 279 [2022-11-26 00:10:51,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 110.4s TimeCoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2022-11-26 00:10:51,332 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 133 mSDsluCounter, 2083 mSDsCounter, 0 mSdLazyCounter, 1720 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 2292 SdHoareTripleChecker+Invalid, 1729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:10:51,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 2292 Invalid, 1729 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1720 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2022-11-26 00:10:51,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-11-26 00:10:51,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 205. [2022-11-26 00:10:51,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 138 states have (on average 1.4420289855072463) internal successors, (199), 141 states have internal predecessors, (199), 50 states have call successors, (50), 16 states have call predecessors, (50), 16 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-11-26 00:10:51,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 298 transitions. [2022-11-26 00:10:51,446 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 298 transitions. Word has length 60 [2022-11-26 00:10:51,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:10:51,447 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 298 transitions. [2022-11-26 00:10:51,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.0) internal successors, (32), 15 states have internal predecessors, (32), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2022-11-26 00:10:51,447 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 298 transitions. [2022-11-26 00:10:51,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-26 00:10:51,449 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:10:51,449 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:10:51,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-26 00:10:51,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:10:51,650 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:10:51,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:10:51,651 INFO L85 PathProgramCache]: Analyzing trace with hash -967381623, now seen corresponding path program 1 times [2022-11-26 00:10:51,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:10:51,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384710973] [2022-11-26 00:10:51,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:10:51,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:10:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:10:51,742 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:10:51,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:10:51,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384710973] [2022-11-26 00:10:51,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384710973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:10:51,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:10:51,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:10:51,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664328597] [2022-11-26 00:10:51,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:10:51,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:10:51,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:10:51,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:10:51,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:10:51,745 INFO L87 Difference]: Start difference. First operand 205 states and 298 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-26 00:10:51,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:10:51,983 INFO L93 Difference]: Finished difference Result 503 states and 760 transitions. [2022-11-26 00:10:51,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:10:51,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 65 [2022-11-26 00:10:51,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:10:51,986 INFO L225 Difference]: With dead ends: 503 [2022-11-26 00:10:51,987 INFO L226 Difference]: Without dead ends: 322 [2022-11-26 00:10:51,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:10:51,989 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 55 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:10:51,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 352 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:10:51,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-11-26 00:10:52,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 317. [2022-11-26 00:10:52,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 225 states have (on average 1.488888888888889) internal successors, (335), 228 states have internal predecessors, (335), 75 states have call successors, (75), 16 states have call predecessors, (75), 16 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2022-11-26 00:10:52,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 484 transitions. [2022-11-26 00:10:52,171 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 484 transitions. Word has length 65 [2022-11-26 00:10:52,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:10:52,172 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 484 transitions. [2022-11-26 00:10:52,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-26 00:10:52,172 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 484 transitions. [2022-11-26 00:10:52,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-26 00:10:52,174 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:10:52,174 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:10:52,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:10:52,175 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:10:52,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:10:52,175 INFO L85 PathProgramCache]: Analyzing trace with hash -757827437, now seen corresponding path program 1 times [2022-11-26 00:10:52,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:10:52,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814904997] [2022-11-26 00:10:52,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:10:52,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:10:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:10:52,304 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:10:52,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:10:52,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814904997] [2022-11-26 00:10:52,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814904997] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:10:52,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312537435] [2022-11-26 00:10:52,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:10:52,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:10:52,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:10:52,307 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:10:52,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:10:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:10:52,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:10:52,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:10:52,614 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:10:52,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:10:52,679 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:10:52,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312537435] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:10:52,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1131009175] [2022-11-26 00:10:52,683 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2022-11-26 00:10:52,683 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:10:52,684 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:10:52,684 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:10:52,684 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:11:34,917 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-11-26 00:11:35,258 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-11-26 00:11:35,598 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 248 for LOIs [2022-11-26 00:11:36,353 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 243 for LOIs [2022-11-26 00:11:41,287 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 226 for LOIs [2022-11-26 00:11:41,328 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 472 for LOIs [2022-11-26 00:11:45,022 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:12:25,043 WARN L233 SmtUtils]: Spent 6.37s on a formula simplification. DAG size of input: 496 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:12:31,226 WARN L233 SmtUtils]: Spent 5.98s on a formula simplification. DAG size of input: 508 DAG size of output: 342 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:12:48,349 WARN L233 SmtUtils]: Spent 10.94s on a formula simplification. DAG size of input: 592 DAG size of output: 341 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:13:09,460 WARN L233 SmtUtils]: Spent 20.77s on a formula simplification. DAG size of input: 594 DAG size of output: 465 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:13:36,167 WARN L233 SmtUtils]: Spent 13.47s on a formula simplification. DAG size of input: 472 DAG size of output: 360 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:14:02,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1131009175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:02,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:14:02,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [4, 4, 4] total 46 [2022-11-26 00:14:02,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770223016] [2022-11-26 00:14:02,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:02,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-26 00:14:02,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:02,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-26 00:14:02,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1941, Unknown=0, NotChecked=0, Total=2070 [2022-11-26 00:14:02,269 INFO L87 Difference]: Start difference. First operand 317 states and 484 transitions. Second operand has 41 states, 29 states have (on average 1.206896551724138) internal successors, (35), 27 states have internal predecessors, (35), 13 states have call successors, (13), 7 states have call predecessors, (13), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-26 00:14:25,254 WARN L233 SmtUtils]: Spent 17.32s on a formula simplification. DAG size of input: 577 DAG size of output: 437 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:14:48,942 WARN L233 SmtUtils]: Spent 10.05s on a formula simplification. DAG size of input: 595 DAG size of output: 426 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:15:12,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:12,286 INFO L93 Difference]: Finished difference Result 750 states and 1202 transitions. [2022-11-26 00:15:12,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-26 00:15:12,290 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 29 states have (on average 1.206896551724138) internal successors, (35), 27 states have internal predecessors, (35), 13 states have call successors, (13), 7 states have call predecessors, (13), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 66 [2022-11-26 00:15:12,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:12,294 INFO L225 Difference]: With dead ends: 750 [2022-11-26 00:15:12,294 INFO L226 Difference]: Without dead ends: 496 [2022-11-26 00:15:12,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 155 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 701 ImplicationChecksByTransitivity, 188.1s TimeCoverageRelationStatistics Valid=234, Invalid=3306, Unknown=0, NotChecked=0, Total=3540 [2022-11-26 00:15:12,297 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 244 mSDsluCounter, 3449 mSDsCounter, 0 mSdLazyCounter, 4549 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 3633 SdHoareTripleChecker+Invalid, 4582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 4549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:12,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 3633 Invalid, 4582 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [33 Valid, 4549 Invalid, 0 Unknown, 0 Unchecked, 18.5s Time] [2022-11-26 00:15:12,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-11-26 00:15:12,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 409. [2022-11-26 00:15:12,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 306 states have (on average 1.5359477124183007) internal successors, (470), 311 states have internal predecessors, (470), 83 states have call successors, (83), 21 states have call predecessors, (83), 19 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2022-11-26 00:15:12,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 635 transitions. [2022-11-26 00:15:12,565 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 635 transitions. Word has length 66 [2022-11-26 00:15:12,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:12,566 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 635 transitions. [2022-11-26 00:15:12,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 29 states have (on average 1.206896551724138) internal successors, (35), 27 states have internal predecessors, (35), 13 states have call successors, (13), 7 states have call predecessors, (13), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-26 00:15:12,566 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 635 transitions. [2022-11-26 00:15:12,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-26 00:15:12,568 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:12,569 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:12,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-26 00:15:12,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:15:12,775 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:15:12,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:12,776 INFO L85 PathProgramCache]: Analyzing trace with hash -125879669, now seen corresponding path program 1 times [2022-11-26 00:15:12,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:15:12,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738893772] [2022-11-26 00:15:12,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:12,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:15:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:12,933 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-26 00:15:12,933 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:15:12,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738893772] [2022-11-26 00:15:12,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738893772] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:15:12,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290689253] [2022-11-26 00:15:12,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:12,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:15:12,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:15:12,935 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:15:12,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:15:13,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:13,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 1000 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:15:13,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:15:13,267 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-26 00:15:13,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:15:13,336 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-26 00:15:13,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290689253] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:15:13,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1912812706] [2022-11-26 00:15:13,339 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2022-11-26 00:15:13,339 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:15:13,340 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:15:13,340 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:15:13,340 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:16:27,479 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-11-26 00:16:27,810 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-11-26 00:16:27,887 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 453 for LOIs [2022-11-26 00:16:28,261 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-26 00:16:28,593 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 456 for LOIs [2022-11-26 00:16:28,975 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:17:08,683 WARN L233 SmtUtils]: Spent 6.32s on a formula simplification. DAG size of input: 496 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:17:14,847 WARN L233 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 508 DAG size of output: 342 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:17:31,714 WARN L233 SmtUtils]: Spent 10.73s on a formula simplification. DAG size of input: 640 DAG size of output: 412 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:17:52,056 WARN L233 SmtUtils]: Spent 19.98s on a formula simplification. DAG size of input: 642 DAG size of output: 518 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:18:02,686 WARN L233 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 578 DAG size of output: 345 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:18:17,534 WARN L233 SmtUtils]: Spent 6.08s on a formula simplification. DAG size of input: 568 DAG size of output: 328 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:18:29,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1912812706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:29,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:18:29,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-11-26 00:18:29,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84599161] [2022-11-26 00:18:29,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:29,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-26 00:18:29,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:29,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-26 00:18:29,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-11-26 00:18:29,172 INFO L87 Difference]: Start difference. First operand 409 states and 635 transitions. Second operand has 30 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 10 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) [2022-11-26 00:18:42,534 WARN L233 SmtUtils]: Spent 8.68s on a formula simplification. DAG size of input: 631 DAG size of output: 370 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:18:54,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:54,205 INFO L93 Difference]: Finished difference Result 828 states and 1327 transitions. [2022-11-26 00:18:54,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-26 00:18:54,207 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 10 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) Word has length 69 [2022-11-26 00:18:54,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:54,211 INFO L225 Difference]: With dead ends: 828 [2022-11-26 00:18:54,211 INFO L226 Difference]: Without dead ends: 574 [2022-11-26 00:18:54,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 131.7s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-11-26 00:18:54,213 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 111 mSDsluCounter, 2605 mSDsCounter, 0 mSdLazyCounter, 2897 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 2778 SdHoareTripleChecker+Invalid, 2907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:54,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 2778 Invalid, 2907 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2897 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2022-11-26 00:18:54,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-11-26 00:18:54,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 499. [2022-11-26 00:18:54,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 388 states have (on average 1.5515463917525774) internal successors, (602), 395 states have internal predecessors, (602), 88 states have call successors, (88), 24 states have call predecessors, (88), 22 states have return successors, (87), 81 states have call predecessors, (87), 87 states have call successors, (87) [2022-11-26 00:18:54,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 777 transitions. [2022-11-26 00:18:54,593 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 777 transitions. Word has length 69 [2022-11-26 00:18:54,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:54,593 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 777 transitions. [2022-11-26 00:18:54,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 10 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) [2022-11-26 00:18:54,594 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 777 transitions. [2022-11-26 00:18:54,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-26 00:18:54,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:54,596 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:54,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:54,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:54,803 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:18:54,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:54,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1350480569, now seen corresponding path program 1 times [2022-11-26 00:18:54,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:54,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014919509] [2022-11-26 00:18:54,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:54,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:54,940 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:18:54,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:54,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014919509] [2022-11-26 00:18:54,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014919509] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:18:54,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608613519] [2022-11-26 00:18:54,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:54,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:54,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:54,943 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:18:54,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfb0cf4-9cc4-4b24-a222-edba25456941/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:18:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:55,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:18:55,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:55,250 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:18:55,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:18:55,339 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:18:55,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608613519] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:18:55,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1171380125] [2022-11-26 00:18:55,349 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2022-11-26 00:18:55,349 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:18:55,350 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:18:55,350 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:18:55,350 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:20:18,421 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-26 00:20:18,753 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-11-26 00:20:19,093 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 248 for LOIs [2022-11-26 00:20:19,819 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 243 for LOIs [2022-11-26 00:20:24,565 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 226 for LOIs [2022-11-26 00:20:24,602 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 472 for LOIs [2022-11-26 00:20:28,363 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:21:07,569 WARN L233 SmtUtils]: Spent 6.56s on a formula simplification. DAG size of input: 496 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:21:13,925 WARN L233 SmtUtils]: Spent 6.14s on a formula simplification. DAG size of input: 508 DAG size of output: 342 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:21:27,695 WARN L233 SmtUtils]: Spent 7.59s on a formula simplification. DAG size of input: 566 DAG size of output: 384 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:21:35,691 WARN L233 SmtUtils]: Spent 7.70s on a formula simplification. DAG size of input: 568 DAG size of output: 386 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:21:42,381 WARN L233 SmtUtils]: Spent 6.34s on a formula simplification. DAG size of input: 570 DAG size of output: 348 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:21:49,053 WARN L233 SmtUtils]: Spent 6.31s on a formula simplification. DAG size of input: 568 DAG size of output: 346 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)