./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 28cb2c1915c61c386f3394fd53d16960f7cb856128220666f501d4f4a00b7894 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 09:09:13,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:09:13,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:09:13,268 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:09:13,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:09:13,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:09:13,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:09:13,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:09:13,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:09:13,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:09:13,273 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:09:13,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:09:13,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:09:13,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:09:13,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:09:13,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:09:13,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:09:13,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:09:13,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:09:13,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:09:13,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:09:13,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:09:13,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:09:13,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:09:13,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:09:13,286 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:09:13,286 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:09:13,287 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:09:13,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:09:13,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:09:13,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:09:13,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:09:13,289 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:09:13,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:09:13,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:09:13,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:09:13,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:09:13,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:09:13,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:09:13,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:09:13,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:09:13,293 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 09:09:13,307 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:09:13,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:09:13,308 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:09:13,308 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:09:13,308 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:09:13,308 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:09:13,309 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:09:13,309 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:09:13,309 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:09:13,309 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:09:13,309 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:09:13,309 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:09:13,309 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:09:13,309 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:09:13,310 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:09:13,310 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:09:13,310 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:09:13,310 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:09:13,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:09:13,311 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:09:13,311 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:09:13,311 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:09:13,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:09:13,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:09:13,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:09:13,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:09:13,312 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:09:13,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:09:13,312 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:09:13,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:09:13,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:09:13,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:09:13,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:09:13,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:09:13,312 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:09:13,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:09:13,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:09:13,313 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:09:13,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:09:13,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:09:13,313 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:09:13,313 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_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 28cb2c1915c61c386f3394fd53d16960f7cb856128220666f501d4f4a00b7894 [2022-12-14 09:09:13,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:09:13,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:09:13,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:09:13,499 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:09:13,499 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:09:13,500 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec9_product31.cil.c [2022-12-14 09:09:16,073 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:09:16,284 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:09:16,284 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/sv-benchmarks/c/product-lines/email_spec9_product31.cil.c [2022-12-14 09:09:16,297 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/data/e8931b8e3/d649b0d3d84340dabec9907020c254b1/FLAGd2a7d66d1 [2022-12-14 09:09:16,311 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/data/e8931b8e3/d649b0d3d84340dabec9907020c254b1 [2022-12-14 09:09:16,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:09:16,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:09:16,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:09:16,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:09:16,320 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:09:16,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:09:16" (1/1) ... [2022-12-14 09:09:16,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bcdb52c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:16, skipping insertion in model container [2022-12-14 09:09:16,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:09:16" (1/1) ... [2022-12-14 09:09:16,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:09:16,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:09:16,777 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:09:16,782 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:09:16,794 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:09:16,798 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_32615cf7-58f8-47c3-bbf0-dd34177167ba/sv-benchmarks/c/product-lines/email_spec9_product31.cil.c[56976,56989] [2022-12-14 09:09:16,817 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:09:16,818 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:09:16,820 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:09:16,824 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:09:16,825 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:09:16,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:09:16,850 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:09:16,913 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:09:16,915 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:09:16,920 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:09:16,921 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_32615cf7-58f8-47c3-bbf0-dd34177167ba/sv-benchmarks/c/product-lines/email_spec9_product31.cil.c[56976,56989] [2022-12-14 09:09:16,922 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:09:16,923 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:09:16,925 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:09:16,927 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:09:16,927 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:09:16,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:09:16,950 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:09:16,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:16 WrapperNode [2022-12-14 09:09:16,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:09:16,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:09:16,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:09:16,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:09:16,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:16" (1/1) ... [2022-12-14 09:09:16,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:16" (1/1) ... [2022-12-14 09:09:17,007 INFO L138 Inliner]: procedures = 132, calls = 223, calls flagged for inlining = 62, calls inlined = 57, statements flattened = 1032 [2022-12-14 09:09:17,007 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:09:17,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:09:17,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:09:17,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:09:17,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:16" (1/1) ... [2022-12-14 09:09:17,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:16" (1/1) ... [2022-12-14 09:09:17,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:16" (1/1) ... [2022-12-14 09:09:17,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:16" (1/1) ... [2022-12-14 09:09:17,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:16" (1/1) ... [2022-12-14 09:09:17,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:16" (1/1) ... [2022-12-14 09:09:17,062 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:16" (1/1) ... [2022-12-14 09:09:17,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:16" (1/1) ... [2022-12-14 09:09:17,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:09:17,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:09:17,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:09:17,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:09:17,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:16" (1/1) ... [2022-12-14 09:09:17,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:09:17,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:09:17,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:09:17,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:09:17,134 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 09:09:17,134 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 09:09:17,134 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 09:09:17,134 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 09:09:17,134 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 09:09:17,134 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 09:09:17,134 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 09:09:17,134 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 09:09:17,135 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 09:09:17,135 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 09:09:17,135 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 09:09:17,135 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 09:09:17,135 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 09:09:17,135 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 09:09:17,135 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 09:09:17,135 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 09:09:17,135 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 09:09:17,136 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 09:09:17,136 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 09:09:17,136 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 09:09:17,136 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 09:09:17,136 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 09:09:17,136 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 09:09:17,136 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 09:09:17,136 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 09:09:17,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:09:17,137 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 09:09:17,137 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 09:09:17,137 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 09:09:17,137 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 09:09:17,137 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 09:09:17,137 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 09:09:17,137 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 09:09:17,137 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 09:09:17,137 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 09:09:17,138 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 09:09:17,138 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 09:09:17,138 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 09:09:17,138 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 09:09:17,138 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 09:09:17,138 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 09:09:17,138 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 09:09:17,138 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 09:09:17,138 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 09:09:17,139 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 09:09:17,139 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 09:09:17,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:09:17,139 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 09:09:17,139 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 09:09:17,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:09:17,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:09:17,289 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:09:17,291 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:09:17,843 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:09:18,134 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:09:18,134 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 09:09:18,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:09:18 BoogieIcfgContainer [2022-12-14 09:09:18,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:09:18,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:09:18,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:09:18,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:09:18,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:09:16" (1/3) ... [2022-12-14 09:09:18,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9ec835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:09:18, skipping insertion in model container [2022-12-14 09:09:18,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:16" (2/3) ... [2022-12-14 09:09:18,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9ec835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:09:18, skipping insertion in model container [2022-12-14 09:09:18,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:09:18" (3/3) ... [2022-12-14 09:09:18,143 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product31.cil.c [2022-12-14 09:09:18,159 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:09:18,159 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 09:09:18,202 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:09:18,207 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;@6a801cdb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:09:18,207 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 09:09:18,212 INFO L276 IsEmpty]: Start isEmpty. Operand has 201 states, 117 states have (on average 1.3162393162393162) internal successors, (154), 121 states have internal predecessors, (154), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2022-12-14 09:09:18,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 09:09:18,223 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:09:18,224 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:09:18,224 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:09:18,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:09:18,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1699996759, now seen corresponding path program 1 times [2022-12-14 09:09:18,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:09:18,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244345915] [2022-12-14 09:09:18,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:09:18,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:09:18,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:09:18,506 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 09:09:18,507 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:09:18,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244345915] [2022-12-14 09:09:18,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244345915] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:09:18,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:09:18,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:09:18,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909837471] [2022-12-14 09:09:18,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:09:18,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:09:18,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:09:18,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:09:18,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:09:18,559 INFO L87 Difference]: Start difference. First operand has 201 states, 117 states have (on average 1.3162393162393162) internal successors, (154), 121 states have internal predecessors, (154), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 09:09:18,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:09:18,678 INFO L93 Difference]: Finished difference Result 319 states and 422 transitions. [2022-12-14 09:09:18,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:09:18,680 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 64 [2022-12-14 09:09:18,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:09:18,691 INFO L225 Difference]: With dead ends: 319 [2022-12-14 09:09:18,691 INFO L226 Difference]: Without dead ends: 198 [2022-12-14 09:09:18,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:09:18,699 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:09:18,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 231 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:09:18,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-12-14 09:09:18,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2022-12-14 09:09:18,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 115 states have (on average 1.2869565217391303) internal successors, (148), 118 states have internal predecessors, (148), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-12-14 09:09:18,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 265 transitions. [2022-12-14 09:09:18,747 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 265 transitions. Word has length 64 [2022-12-14 09:09:18,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:09:18,749 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 265 transitions. [2022-12-14 09:09:18,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 09:09:18,749 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 265 transitions. [2022-12-14 09:09:18,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-14 09:09:18,752 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:09:18,753 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:09:18,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:09:18,753 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:09:18,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:09:18,754 INFO L85 PathProgramCache]: Analyzing trace with hash 91162757, now seen corresponding path program 1 times [2022-12-14 09:09:18,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:09:18,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129624547] [2022-12-14 09:09:18,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:09:18,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:09:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:09:18,910 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 09:09:18,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:09:18,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129624547] [2022-12-14 09:09:18,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129624547] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:09:18,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:09:18,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:09:18,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816860205] [2022-12-14 09:09:18,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:09:18,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:09:18,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:09:18,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:09:18,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:09:18,914 INFO L87 Difference]: Start difference. First operand 198 states and 265 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 09:09:19,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:09:19,018 INFO L93 Difference]: Finished difference Result 315 states and 410 transitions. [2022-12-14 09:09:19,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:09:19,019 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2022-12-14 09:09:19,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:09:19,021 INFO L225 Difference]: With dead ends: 315 [2022-12-14 09:09:19,021 INFO L226 Difference]: Without dead ends: 200 [2022-12-14 09:09:19,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:09:19,024 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 0 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:09:19,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 455 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:09:19,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-12-14 09:09:19,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2022-12-14 09:09:19,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 117 states have (on average 1.2820512820512822) internal successors, (150), 120 states have internal predecessors, (150), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-12-14 09:09:19,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 267 transitions. [2022-12-14 09:09:19,043 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 267 transitions. Word has length 65 [2022-12-14 09:09:19,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:09:19,043 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 267 transitions. [2022-12-14 09:09:19,043 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 09:09:19,044 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 267 transitions. [2022-12-14 09:09:19,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-14 09:09:19,046 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:09:19,046 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:09:19,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:09:19,046 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:09:19,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:09:19,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1943836490, now seen corresponding path program 1 times [2022-12-14 09:09:19,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:09:19,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222884305] [2022-12-14 09:09:19,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:09:19,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:09:19,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:09:19,157 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 09:09:19,157 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:09:19,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222884305] [2022-12-14 09:09:19,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222884305] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:09:19,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:09:19,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:09:19,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359349627] [2022-12-14 09:09:19,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:09:19,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:09:19,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:09:19,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:09:19,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:09:19,159 INFO L87 Difference]: Start difference. First operand 200 states and 267 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 09:09:19,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:09:19,262 INFO L93 Difference]: Finished difference Result 430 states and 593 transitions. [2022-12-14 09:09:19,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:09:19,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 70 [2022-12-14 09:09:19,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:09:19,264 INFO L225 Difference]: With dead ends: 430 [2022-12-14 09:09:19,264 INFO L226 Difference]: Without dead ends: 248 [2022-12-14 09:09:19,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:09:19,267 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 57 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:09:19,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 466 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:09:19,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-12-14 09:09:19,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 243. [2022-12-14 09:09:19,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 149 states have (on average 1.3624161073825503) internal successors, (203), 152 states have internal predecessors, (203), 70 states have call successors, (70), 23 states have call predecessors, (70), 23 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-12-14 09:09:19,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 342 transitions. [2022-12-14 09:09:19,288 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 342 transitions. Word has length 70 [2022-12-14 09:09:19,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:09:19,289 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 342 transitions. [2022-12-14 09:09:19,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 09:09:19,289 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 342 transitions. [2022-12-14 09:09:19,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 09:09:19,291 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:09:19,292 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:09:19,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:09:19,292 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:09:19,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:09:19,292 INFO L85 PathProgramCache]: Analyzing trace with hash 678938623, now seen corresponding path program 1 times [2022-12-14 09:09:19,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:09:19,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052028691] [2022-12-14 09:09:19,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:09:19,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:09:19,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:09:19,429 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 09:09:19,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:09:19,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052028691] [2022-12-14 09:09:19,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052028691] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:09:19,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735081831] [2022-12-14 09:09:19,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:09:19,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:09:19,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:09:19,432 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:09:19,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:09:19,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:09:19,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:09:19,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:09:19,690 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 09:09:19,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:09:19,742 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 09:09:19,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735081831] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:09:19,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [776181326] [2022-12-14 09:09:19,758 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-12-14 09:09:19,758 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:09:19,761 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:09:19,765 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:09:19,765 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:09:48,868 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 09:09:49,178 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 09:09:49,483 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 486 for LOIs [2022-12-14 09:10:27,362 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 454 for LOIs [2022-12-14 09:10:27,658 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 484 for LOIs [2022-12-14 09:10:48,954 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 442 for LOIs [2022-12-14 09:10:49,261 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 249 for LOIs [2022-12-14 09:10:49,329 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 254 for LOIs [2022-12-14 09:10:49,373 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 457 for LOIs [2022-12-14 09:10:50,020 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:12:49,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [776181326] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:12:49,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:12:49,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [4, 4, 4] total 54 [2022-12-14 09:12:49,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907200012] [2022-12-14 09:12:49,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:12:49,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-12-14 09:12:49,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:12:49,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-12-14 09:12:49,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=2711, Unknown=0, NotChecked=0, Total=2862 [2022-12-14 09:12:49,993 INFO L87 Difference]: Start difference. First operand 243 states and 342 transitions. Second operand has 49 states, 32 states have (on average 1.15625) internal successors, (37), 30 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 09:13:25,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:13:25,654 INFO L93 Difference]: Finished difference Result 600 states and 892 transitions. [2022-12-14 09:13:25,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-12-14 09:13:25,655 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 32 states have (on average 1.15625) internal successors, (37), 30 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 71 [2022-12-14 09:13:25,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:13:25,657 INFO L225 Difference]: With dead ends: 600 [2022-12-14 09:13:25,657 INFO L226 Difference]: Without dead ends: 375 [2022-12-14 09:13:25,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 162 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 912 ImplicationChecksByTransitivity, 138.5s TimeCoverageRelationStatistics Valid=219, Invalid=3687, Unknown=0, NotChecked=0, Total=3906 [2022-12-14 09:13:25,659 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 206 mSDsluCounter, 5777 mSDsCounter, 0 mSdLazyCounter, 5744 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 6041 SdHoareTripleChecker+Invalid, 5762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 5744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:13:25,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 6041 Invalid, 5762 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [18 Valid, 5744 Invalid, 0 Unknown, 0 Unchecked, 16.6s Time] [2022-12-14 09:13:25,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-12-14 09:13:25,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 321. [2022-12-14 09:13:25,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 213 states have (on average 1.4131455399061033) internal successors, (301), 216 states have internal predecessors, (301), 78 states have call successors, (78), 31 states have call predecessors, (78), 29 states have return successors, (77), 75 states have call predecessors, (77), 77 states have call successors, (77) [2022-12-14 09:13:25,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 456 transitions. [2022-12-14 09:13:25,769 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 456 transitions. Word has length 71 [2022-12-14 09:13:25,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:13:25,769 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 456 transitions. [2022-12-14 09:13:25,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 32 states have (on average 1.15625) internal successors, (37), 30 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 09:13:25,769 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 456 transitions. [2022-12-14 09:13:25,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 09:13:25,771 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:13:25,771 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:13:25,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:13:25,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:13:25,973 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:13:25,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:13:25,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1836576711, now seen corresponding path program 1 times [2022-12-14 09:13:25,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:13:25,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986853872] [2022-12-14 09:13:25,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:13:25,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:13:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:13:26,064 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 09:13:26,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:13:26,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986853872] [2022-12-14 09:13:26,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986853872] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:13:26,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:13:26,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:13:26,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567573252] [2022-12-14 09:13:26,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:13:26,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:13:26,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:13:26,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:13:26,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:13:26,066 INFO L87 Difference]: Start difference. First operand 321 states and 456 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 09:13:26,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:13:26,310 INFO L93 Difference]: Finished difference Result 756 states and 1118 transitions. [2022-12-14 09:13:26,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:13:26,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 76 [2022-12-14 09:13:26,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:13:26,312 INFO L225 Difference]: With dead ends: 756 [2022-12-14 09:13:26,312 INFO L226 Difference]: Without dead ends: 461 [2022-12-14 09:13:26,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:13:26,314 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 55 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:13:26,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 479 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:13:26,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-12-14 09:13:26,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 454. [2022-12-14 09:13:26,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 321 states have (on average 1.4890965732087227) internal successors, (478), 324 states have internal predecessors, (478), 103 states have call successors, (103), 31 states have call predecessors, (103), 29 states have return successors, (102), 100 states have call predecessors, (102), 102 states have call successors, (102) [2022-12-14 09:13:26,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 683 transitions. [2022-12-14 09:13:26,489 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 683 transitions. Word has length 76 [2022-12-14 09:13:26,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:13:26,489 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 683 transitions. [2022-12-14 09:13:26,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 09:13:26,489 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 683 transitions. [2022-12-14 09:13:26,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-14 09:13:26,491 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:13:26,491 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:13:26,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:13:26,491 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:13:26,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:13:26,492 INFO L85 PathProgramCache]: Analyzing trace with hash 955143065, now seen corresponding path program 1 times [2022-12-14 09:13:26,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:13:26,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798841108] [2022-12-14 09:13:26,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:13:26,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:13:26,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:13:26,610 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 09:13:26,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:13:26,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798841108] [2022-12-14 09:13:26,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798841108] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:13:26,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804774557] [2022-12-14 09:13:26,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:13:26,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:13:26,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:13:26,612 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:13:26,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 09:13:26,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:13:26,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 1044 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:13:26,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:13:26,848 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 09:13:26,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:13:26,893 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 09:13:26,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804774557] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:13:26,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2033840473] [2022-12-14 09:13:26,897 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2022-12-14 09:13:26,898 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:13:26,898 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:13:26,898 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:13:26,898 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:13:56,351 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 09:13:56,656 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 444 for LOIs [2022-12-14 09:13:56,950 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 264 for LOIs [2022-12-14 09:13:58,755 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 232 for LOIs [2022-12-14 09:13:58,791 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 264 for LOIs [2022-12-14 09:14:21,491 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 222 for LOIs [2022-12-14 09:14:21,535 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 245 for LOIs [2022-12-14 09:14:21,606 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 250 for LOIs [2022-12-14 09:14:21,648 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 476 for LOIs [2022-12-14 09:14:23,475 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:15:09,304 WARN L233 SmtUtils]: Spent 11.81s on a formula simplification. DAG size of input: 589 DAG size of output: 459 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:16:00,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2033840473] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:16:00,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:16:00,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [4, 4, 4] total 58 [2022-12-14 09:16:00,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616159806] [2022-12-14 09:16:00,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:16:00,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-12-14 09:16:00,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:16:00,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-12-14 09:16:00,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=3129, Unknown=0, NotChecked=0, Total=3306 [2022-12-14 09:16:00,626 INFO L87 Difference]: Start difference. First operand 454 states and 683 transitions. Second operand has 53 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 33 states have internal predecessors, (40), 16 states have call successors, (16), 10 states have call predecessors, (16), 8 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 09:16:12,529 WARN L233 SmtUtils]: Spent 9.64s on a formula simplification. DAG size of input: 564 DAG size of output: 439 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:16:31,499 WARN L233 SmtUtils]: Spent 5.65s on a formula simplification. DAG size of input: 587 DAG size of output: 425 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:16:38,099 WARN L233 SmtUtils]: Spent 5.80s on a formula simplification. DAG size of input: 589 DAG size of output: 426 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:17:00,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:17:00,993 INFO L93 Difference]: Finished difference Result 913 states and 1399 transitions. [2022-12-14 09:17:00,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-12-14 09:17:00,994 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 33 states have internal predecessors, (40), 16 states have call successors, (16), 10 states have call predecessors, (16), 8 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 77 [2022-12-14 09:17:00,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:17:00,996 INFO L225 Difference]: With dead ends: 913 [2022-12-14 09:17:00,996 INFO L226 Difference]: Without dead ends: 598 [2022-12-14 09:17:00,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 176 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1181 ImplicationChecksByTransitivity, 139.4s TimeCoverageRelationStatistics Valid=308, Invalid=4948, Unknown=0, NotChecked=0, Total=5256 [2022-12-14 09:17:00,998 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 356 mSDsluCounter, 5598 mSDsCounter, 0 mSdLazyCounter, 5837 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 5845 SdHoareTripleChecker+Invalid, 5891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 5837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:17:00,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 5845 Invalid, 5891 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [54 Valid, 5837 Invalid, 0 Unknown, 0 Unchecked, 17.4s Time] [2022-12-14 09:17:00,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-12-14 09:17:01,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 481. [2022-12-14 09:17:01,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 344 states have (on average 1.4912790697674418) internal successors, (513), 349 states have internal predecessors, (513), 106 states have call successors, (106), 32 states have call predecessors, (106), 30 states have return successors, (105), 101 states have call predecessors, (105), 105 states have call successors, (105) [2022-12-14 09:17:01,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 724 transitions. [2022-12-14 09:17:01,219 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 724 transitions. Word has length 77 [2022-12-14 09:17:01,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:17:01,219 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 724 transitions. [2022-12-14 09:17:01,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 33 states have internal predecessors, (40), 16 states have call successors, (16), 10 states have call predecessors, (16), 8 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 09:17:01,219 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 724 transitions. [2022-12-14 09:17:01,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-14 09:17:01,221 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:17:01,221 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:17:01,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 09:17:01,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:17:01,422 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:17:01,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:17:01,424 INFO L85 PathProgramCache]: Analyzing trace with hash 509118471, now seen corresponding path program 1 times [2022-12-14 09:17:01,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:17:01,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726739709] [2022-12-14 09:17:01,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:17:01,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:17:01,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:17:01,597 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 09:17:01,597 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:17:01,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726739709] [2022-12-14 09:17:01,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726739709] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:17:01,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258610704] [2022-12-14 09:17:01,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:17:01,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:17:01,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:17:01,599 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:17:01,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 09:17:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:17:01,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:17:01,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:17:01,861 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 09:17:01,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:17:01,906 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 09:17:01,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258610704] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:17:01,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1744942915] [2022-12-14 09:17:01,909 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2022-12-14 09:17:01,910 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:17:01,910 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:17:01,910 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:17:01,910 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:18:10,913 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 09:18:11,210 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 422 for LOIs [2022-12-14 09:18:11,492 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 419 for LOIs [2022-12-14 09:18:11,769 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 242 for LOIs [2022-12-14 09:18:13,258 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 213 for LOIs [2022-12-14 09:18:13,316 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 210 for LOIs [2022-12-14 09:18:13,347 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 09:18:13,656 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 242 for LOIs [2022-12-14 09:18:27,771 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 200 for LOIs [2022-12-14 09:18:27,799 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 223 for LOIs [2022-12-14 09:18:27,860 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 228 for LOIs [2022-12-14 09:18:27,897 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 424 for LOIs [2022-12-14 09:18:29,337 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:19:13,197 WARN L233 SmtUtils]: Spent 5.72s on a formula simplification. DAG size of input: 532 DAG size of output: 405 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:19:32,500 WARN L233 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 530 DAG size of output: 407 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:19:40,722 WARN L233 SmtUtils]: Spent 5.93s on a formula simplification. DAG size of input: 424 DAG size of output: 326 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:20:11,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1744942915] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:20:11,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:20:11,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [4, 4, 4] total 63 [2022-12-14 09:20:11,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075524894] [2022-12-14 09:20:11,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:20:11,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-12-14 09:20:11,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:20:11,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-12-14 09:20:11,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=3726, Unknown=0, NotChecked=0, Total=3906 [2022-12-14 09:20:11,429 INFO L87 Difference]: Start difference. First operand 481 states and 724 transitions. Second operand has 58 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 34 states have internal predecessors, (40), 18 states have call successors, (18), 13 states have call predecessors, (18), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 09:21:00,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:21:00,026 INFO L93 Difference]: Finished difference Result 987 states and 1499 transitions. [2022-12-14 09:21:00,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-12-14 09:21:00,026 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 34 states have internal predecessors, (40), 18 states have call successors, (18), 13 states have call predecessors, (18), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Word has length 80 [2022-12-14 09:21:00,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:21:00,029 INFO L225 Difference]: With dead ends: 987 [2022-12-14 09:21:00,029 INFO L226 Difference]: Without dead ends: 672 [2022-12-14 09:21:00,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1272 ImplicationChecksByTransitivity, 127.0s TimeCoverageRelationStatistics Valid=309, Invalid=5697, Unknown=0, NotChecked=0, Total=6006 [2022-12-14 09:21:00,031 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 253 mSDsluCounter, 6633 mSDsCounter, 0 mSdLazyCounter, 8423 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 6890 SdHoareTripleChecker+Invalid, 8464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 8423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:21:00,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 6890 Invalid, 8464 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [41 Valid, 8423 Invalid, 0 Unknown, 0 Unchecked, 22.9s Time] [2022-12-14 09:21:00,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2022-12-14 09:21:00,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 565. [2022-12-14 09:21:00,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 407 states have (on average 1.4742014742014742) internal successors, (600), 415 states have internal predecessors, (600), 119 states have call successors, (119), 42 states have call predecessors, (119), 38 states have return successors, (118), 109 states have call predecessors, (118), 118 states have call successors, (118) [2022-12-14 09:21:00,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 837 transitions. [2022-12-14 09:21:00,348 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 837 transitions. Word has length 80 [2022-12-14 09:21:00,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:21:00,348 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 837 transitions. [2022-12-14 09:21:00,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 34 states have internal predecessors, (40), 18 states have call successors, (18), 13 states have call predecessors, (18), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 09:21:00,348 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 837 transitions. [2022-12-14 09:21:00,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 09:21:00,351 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:21:00,351 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:21:00,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 09:21:00,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:21:00,552 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:21:00,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:21:00,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1287196459, now seen corresponding path program 1 times [2022-12-14 09:21:00,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:21:00,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689652013] [2022-12-14 09:21:00,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:21:00,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:21:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:21:00,707 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 09:21:00,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:21:00,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689652013] [2022-12-14 09:21:00,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689652013] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:21:00,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224744636] [2022-12-14 09:21:00,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:21:00,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:21:00,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:21:00,708 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:21:00,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32615cf7-58f8-47c3-bbf0-dd34177167ba/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 09:21:00,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:21:00,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 1185 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:21:00,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:21:00,970 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 09:21:00,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:21:01,024 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 09:21:01,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224744636] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:21:01,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1309180864] [2022-12-14 09:21:01,027 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2022-12-14 09:21:01,027 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:21:01,028 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:21:01,028 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:21:01,028 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:21:57,019 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 09:21:57,313 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 231 for LOIs [2022-12-14 09:21:57,374 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 230 for LOIs [2022-12-14 09:21:57,433 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 242 for LOIs [2022-12-14 09:21:58,891 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 213 for LOIs [2022-12-14 09:21:58,953 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 210 for LOIs [2022-12-14 09:21:58,985 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 09:21:59,299 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 244 for LOIs [2022-12-14 09:22:23,459 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailIsEncrypted with input of size 224 for LOIs [2022-12-14 09:22:23,497 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 200 for LOIs [2022-12-14 09:22:23,526 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 223 for LOIs [2022-12-14 09:22:23,591 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 228 for LOIs [2022-12-14 09:22:23,628 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 407 for LOIs [2022-12-14 09:22:26,279 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailEncryptionKey with input of size 230 for LOIs [2022-12-14 09:22:26,321 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:23:08,736 WARN L233 SmtUtils]: Spent 8.99s on a formula simplification. DAG size of input: 624 DAG size of output: 473 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:23:27,541 WARN L233 SmtUtils]: Spent 5.84s on a formula simplification. DAG size of input: 407 DAG size of output: 328 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)