./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product30.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_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/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_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product30.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/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_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/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 77340ea3311b00efe6580b7964ad9e7e4d288fea0ba2d6706c8abdac4c4c4bb5 --- 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 14:47:31,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:47:31,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:47:31,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:47:31,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:47:31,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:47:31,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:47:31,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:47:31,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:47:31,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:47:31,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:47:31,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:47:31,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:47:31,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:47:31,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:47:31,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:47:31,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:47:31,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:47:31,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:47:31,355 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:47:31,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:47:31,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:47:31,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:47:31,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:47:31,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:47:31,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:47:31,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:47:31,362 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:47:31,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:47:31,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:47:31,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:47:31,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:47:31,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:47:31,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:47:31,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:47:31,366 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:47:31,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:47:31,367 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:47:31,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:47:31,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:47:31,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:47:31,368 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 14:47:31,382 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:47:31,383 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:47:31,383 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:47:31,383 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:47:31,383 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:47:31,384 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:47:31,384 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:47:31,384 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:47:31,384 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:47:31,384 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:47:31,384 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:47:31,384 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:47:31,384 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:47:31,385 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:47:31,385 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:47:31,385 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:47:31,385 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:47:31,385 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:47:31,386 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:47:31,386 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:47:31,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:47:31,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:47:31,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:47:31,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:47:31,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:47:31,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:47:31,387 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:47:31,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:47:31,387 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:47:31,387 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:47:31,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:47:31,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:47:31,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:47:31,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:47:31,388 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:47:31,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:47:31,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:47:31,388 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:47:31,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:47:31,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:47:31,388 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:47:31,388 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_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77340ea3311b00efe6580b7964ad9e7e4d288fea0ba2d6706c8abdac4c4c4bb5 [2022-12-14 14:47:31,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:47:31,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:47:31,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:47:31,570 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:47:31,570 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:47:31,571 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec27_product30.cil.c [2022-12-14 14:47:34,238 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:47:34,483 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:47:34,484 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/sv-benchmarks/c/product-lines/email_spec27_product30.cil.c [2022-12-14 14:47:34,497 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/bin/utaipan-gh47qXpMRh/data/9664c658c/3afb7b4f6044415087a9b3f35c3aada4/FLAG305c849ee [2022-12-14 14:47:34,820 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/bin/utaipan-gh47qXpMRh/data/9664c658c/3afb7b4f6044415087a9b3f35c3aada4 [2022-12-14 14:47:34,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:47:34,834 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:47:34,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:47:34,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:47:34,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:47:34,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:47:34" (1/1) ... [2022-12-14 14:47:34,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73fbb63b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:34, skipping insertion in model container [2022-12-14 14:47:34,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:47:34" (1/1) ... [2022-12-14 14:47:34,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:47:34,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:47:35,146 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:35,163 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:35,167 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:35,176 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:35,196 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_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/sv-benchmarks/c/product-lines/email_spec27_product30.cil.c[47628,47641] [2022-12-14 14:47:35,247 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:35,248 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:35,251 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:35,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:47:35,264 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:47:35,316 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:35,318 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:35,321 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:35,330 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:35,341 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_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/sv-benchmarks/c/product-lines/email_spec27_product30.cil.c[47628,47641] [2022-12-14 14:47:35,365 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:35,366 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:35,368 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:47:35,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:47:35,398 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:47:35,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:35 WrapperNode [2022-12-14 14:47:35,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:47:35,400 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:47:35,400 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:47:35,400 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:47:35,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:35" (1/1) ... [2022-12-14 14:47:35,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:35" (1/1) ... [2022-12-14 14:47:35,480 INFO L138 Inliner]: procedures = 131, calls = 219, calls flagged for inlining = 59, calls inlined = 50, statements flattened = 916 [2022-12-14 14:47:35,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:47:35,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:47:35,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:47:35,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:47:35,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:35" (1/1) ... [2022-12-14 14:47:35,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:35" (1/1) ... [2022-12-14 14:47:35,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:35" (1/1) ... [2022-12-14 14:47:35,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:35" (1/1) ... [2022-12-14 14:47:35,516 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:35" (1/1) ... [2022-12-14 14:47:35,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:35" (1/1) ... [2022-12-14 14:47:35,530 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:35" (1/1) ... [2022-12-14 14:47:35,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:35" (1/1) ... [2022-12-14 14:47:35,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:47:35,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:47:35,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:47:35,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:47:35,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:35" (1/1) ... [2022-12-14 14:47:35,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:47:35,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:47:35,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:47:35,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:47:35,615 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 14:47:35,615 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 14:47:35,615 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 14:47:35,615 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 14:47:35,615 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 14:47:35,615 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 14:47:35,616 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 14:47:35,616 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 14:47:35,616 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 14:47:35,616 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 14:47:35,616 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 14:47:35,616 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 14:47:35,616 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 14:47:35,616 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 14:47:35,617 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 14:47:35,617 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 14:47:35,617 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 14:47:35,617 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 14:47:35,617 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 14:47:35,617 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 14:47:35,617 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 14:47:35,617 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 14:47:35,618 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 14:47:35,618 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 14:47:35,618 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 14:47:35,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:47:35,618 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 14:47:35,618 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 14:47:35,618 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 14:47:35,618 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 14:47:35,619 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 14:47:35,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 14:47:35,619 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 14:47:35,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 14:47:35,619 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 14:47:35,619 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 14:47:35,619 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2022-12-14 14:47:35,619 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2022-12-14 14:47:35,619 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 14:47:35,620 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 14:47:35,620 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 14:47:35,620 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 14:47:35,620 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 14:47:35,620 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 14:47:35,620 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 14:47:35,620 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 14:47:35,620 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 14:47:35,620 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 14:47:35,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:47:35,621 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 14:47:35,621 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 14:47:35,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:47:35,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:47:35,788 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:47:35,791 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:47:36,371 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:47:36,698 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:47:36,698 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 14:47:36,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:47:36 BoogieIcfgContainer [2022-12-14 14:47:36,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:47:36,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:47:36,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:47:36,706 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:47:36,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:47:34" (1/3) ... [2022-12-14 14:47:36,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa35b08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:47:36, skipping insertion in model container [2022-12-14 14:47:36,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:35" (2/3) ... [2022-12-14 14:47:36,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa35b08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:47:36, skipping insertion in model container [2022-12-14 14:47:36,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:47:36" (3/3) ... [2022-12-14 14:47:36,708 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product30.cil.c [2022-12-14 14:47:36,723 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:47:36,723 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:47:36,766 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:47:36,771 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;@763ddb01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:47:36,771 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:47:36,776 INFO L276 IsEmpty]: Start isEmpty. Operand has 193 states, 113 states have (on average 1.3274336283185841) internal successors, (150), 117 states have internal predecessors, (150), 54 states have call successors, (54), 24 states have call predecessors, (54), 24 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2022-12-14 14:47:36,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-14 14:47:36,788 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:47:36,788 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:47:36,789 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:47:36,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:47:36,793 INFO L85 PathProgramCache]: Analyzing trace with hash 246935611, now seen corresponding path program 1 times [2022-12-14 14:47:36,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:47:36,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803013252] [2022-12-14 14:47:36,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:47:36,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:47:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:47:37,084 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 14:47:37,085 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:47:37,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803013252] [2022-12-14 14:47:37,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803013252] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:47:37,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:47:37,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:47:37,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746782591] [2022-12-14 14:47:37,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:47:37,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 14:47:37,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:47:37,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 14:47:37,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:47:37,124 INFO L87 Difference]: Start difference. First operand has 193 states, 113 states have (on average 1.3274336283185841) internal successors, (150), 117 states have internal predecessors, (150), 54 states have call successors, (54), 24 states have call predecessors, (54), 24 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 14:47:37,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:47:37,240 INFO L93 Difference]: Finished difference Result 303 states and 394 transitions. [2022-12-14 14:47:37,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 14:47:37,242 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 92 [2022-12-14 14:47:37,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:47:37,250 INFO L225 Difference]: With dead ends: 303 [2022-12-14 14:47:37,250 INFO L226 Difference]: Without dead ends: 190 [2022-12-14 14:47:37,252 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 14:47:37,254 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:47:37,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 220 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:47:37,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-12-14 14:47:37,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2022-12-14 14:47:37,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 111 states have (on average 1.2972972972972974) internal successors, (144), 114 states have internal predecessors, (144), 54 states have call successors, (54), 24 states have call predecessors, (54), 24 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-12-14 14:47:37,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 251 transitions. [2022-12-14 14:47:37,303 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 251 transitions. Word has length 92 [2022-12-14 14:47:37,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:47:37,305 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 251 transitions. [2022-12-14 14:47:37,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 14:47:37,305 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 251 transitions. [2022-12-14 14:47:37,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 14:47:37,309 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:47:37,310 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:47:37,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:47:37,310 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:47:37,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:47:37,311 INFO L85 PathProgramCache]: Analyzing trace with hash 2053885553, now seen corresponding path program 1 times [2022-12-14 14:47:37,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:47:37,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587150933] [2022-12-14 14:47:37,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:47:37,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:47:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:47:37,492 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 14:47:37,492 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:47:37,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587150933] [2022-12-14 14:47:37,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587150933] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:47:37,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:47:37,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:47:37,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322932024] [2022-12-14 14:47:37,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:47:37,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:47:37,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:47:37,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:47:37,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:47:37,494 INFO L87 Difference]: Start difference. First operand 190 states and 251 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 14:47:37,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:47:37,601 INFO L93 Difference]: Finished difference Result 299 states and 382 transitions. [2022-12-14 14:47:37,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:47:37,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 93 [2022-12-14 14:47:37,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:47:37,602 INFO L225 Difference]: With dead ends: 299 [2022-12-14 14:47:37,603 INFO L226 Difference]: Without dead ends: 192 [2022-12-14 14:47:37,603 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 14:47:37,604 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 0 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:47:37,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 433 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:47:37,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-12-14 14:47:37,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2022-12-14 14:47:37,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 113 states have (on average 1.2920353982300885) internal successors, (146), 116 states have internal predecessors, (146), 54 states have call successors, (54), 24 states have call predecessors, (54), 24 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-12-14 14:47:37,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 253 transitions. [2022-12-14 14:47:37,616 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 253 transitions. Word has length 93 [2022-12-14 14:47:37,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:47:37,617 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 253 transitions. [2022-12-14 14:47:37,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 14:47:37,617 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 253 transitions. [2022-12-14 14:47:37,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-14 14:47:37,618 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:47:37,618 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:47:37,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:47:37,619 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:47:37,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:47:37,619 INFO L85 PathProgramCache]: Analyzing trace with hash -108646191, now seen corresponding path program 1 times [2022-12-14 14:47:37,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:47:37,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957186261] [2022-12-14 14:47:37,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:47:37,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:47:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:47:37,733 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 14:47:37,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:47:37,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957186261] [2022-12-14 14:47:37,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957186261] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:47:37,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:47:37,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:47:37,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565133295] [2022-12-14 14:47:37,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:47:37,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:47:37,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:47:37,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:47:37,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:47:37,736 INFO L87 Difference]: Start difference. First operand 192 states and 253 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 14:47:37,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:47:37,833 INFO L93 Difference]: Finished difference Result 414 states and 565 transitions. [2022-12-14 14:47:37,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:47:37,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 98 [2022-12-14 14:47:37,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:47:37,836 INFO L225 Difference]: With dead ends: 414 [2022-12-14 14:47:37,836 INFO L226 Difference]: Without dead ends: 240 [2022-12-14 14:47:37,837 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 14:47:37,838 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 57 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:47:37,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 446 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:47:37,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-12-14 14:47:37,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 235. [2022-12-14 14:47:37,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 145 states have (on average 1.3724137931034484) internal successors, (199), 148 states have internal predecessors, (199), 65 states have call successors, (65), 24 states have call predecessors, (65), 24 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-14 14:47:37,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 328 transitions. [2022-12-14 14:47:37,853 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 328 transitions. Word has length 98 [2022-12-14 14:47:37,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:47:37,853 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 328 transitions. [2022-12-14 14:47:37,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 14:47:37,853 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 328 transitions. [2022-12-14 14:47:37,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-12-14 14:47:37,855 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:47:37,855 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:47:37,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:47:37,855 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:47:37,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:47:37,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1113674326, now seen corresponding path program 1 times [2022-12-14 14:47:37,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:47:37,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336799433] [2022-12-14 14:47:37,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:47:37,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:47:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:47:37,985 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 14:47:37,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:47:37,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336799433] [2022-12-14 14:47:37,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336799433] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:47:37,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855289275] [2022-12-14 14:47:37,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:47:37,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:47:37,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:47:37,987 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:47:37,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 14:47:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:47:38,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 1143 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:47:38,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:47:38,289 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 14:47:38,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:47:38,356 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 14:47:38,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855289275] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:47:38,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1893821025] [2022-12-14 14:47:38,376 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2022-12-14 14:47:38,376 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:47:38,379 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:47:38,383 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:47:38,383 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:48:13,042 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 14:48:13,330 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 267 for LOIs [2022-12-14 14:48:15,213 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-12-14 14:48:15,249 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 14:48:15,540 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 269 for LOIs [2022-12-14 14:48:39,841 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 251 for LOIs [2022-12-14 14:48:40,511 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 251 for LOIs [2022-12-14 14:48:40,552 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 452 for LOIs [2022-12-14 14:48:41,121 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 249 for LOIs [2022-12-14 14:48:41,189 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 247 for LOIs [2022-12-14 14:48:41,228 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 473 for LOIs [2022-12-14 14:48:44,313 INFO L197 IcfgInterpreter]: Interpreting procedure isVerified with input of size 251 for LOIs [2022-12-14 14:48:44,353 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:49:26,409 WARN L233 SmtUtils]: Spent 12.19s on a formula simplification. DAG size of input: 589 DAG size of output: 462 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:49:38,371 WARN L233 SmtUtils]: Spent 11.68s on a formula simplification. DAG size of input: 591 DAG size of output: 464 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:49:54,885 WARN L233 SmtUtils]: Spent 7.36s on a formula simplification. DAG size of input: 473 DAG size of output: 364 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:50:12,014 WARN L233 SmtUtils]: Spent 5.91s on a formula simplification. DAG size of input: 452 DAG size of output: 346 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:50:19,167 WARN L233 SmtUtils]: Spent 6.70s on a formula simplification. DAG size of input: 478 DAG size of output: 362 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:51:11,577 WARN L233 SmtUtils]: Spent 9.68s on a formula simplification. DAG size of input: 645 DAG size of output: 436 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:51:17,458 WARN L233 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 642 DAG size of output: 424 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:51:32,987 WARN L233 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 690 DAG size of output: 496 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:51:38,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1893821025] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:51:38,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:51:38,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [66] imperfect sequences [4, 4, 4] total 72 [2022-12-14 14:51:38,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773759341] [2022-12-14 14:51:38,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:51:38,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-12-14 14:51:38,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:51:38,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-12-14 14:51:38,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=4871, Unknown=0, NotChecked=0, Total=5112 [2022-12-14 14:51:38,795 INFO L87 Difference]: Start difference. First operand 235 states and 328 transitions. Second operand has 67 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 41 states have internal predecessors, (50), 20 states have call successors, (21), 13 states have call predecessors, (21), 11 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2022-12-14 14:51:46,852 WARN L233 SmtUtils]: Spent 5.44s on a formula simplification. DAG size of input: 574 DAG size of output: 431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:51:52,771 WARN L233 SmtUtils]: Spent 5.53s on a formula simplification. DAG size of input: 576 DAG size of output: 426 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:51:58,285 WARN L233 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 592 DAG size of output: 431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:52:09,427 WARN L233 SmtUtils]: Spent 5.20s on a formula simplification. DAG size of input: 591 DAG size of output: 433 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:52:15,517 WARN L233 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 584 DAG size of output: 452 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:52:23,291 WARN L233 SmtUtils]: Spent 7.02s on a formula simplification. DAG size of input: 591 DAG size of output: 455 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:53:02,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:53:02,559 INFO L93 Difference]: Finished difference Result 710 states and 1058 transitions. [2022-12-14 14:53:02,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-12-14 14:53:02,560 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 41 states have internal predecessors, (50), 20 states have call successors, (21), 13 states have call predecessors, (21), 11 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) Word has length 99 [2022-12-14 14:53:02,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:53:02,563 INFO L225 Difference]: With dead ends: 710 [2022-12-14 14:53:02,563 INFO L226 Difference]: Without dead ends: 493 [2022-12-14 14:53:02,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 227 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1566 ImplicationChecksByTransitivity, 223.6s TimeCoverageRelationStatistics Valid=332, Invalid=6640, Unknown=0, NotChecked=0, Total=6972 [2022-12-14 14:53:02,566 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 376 mSDsluCounter, 7306 mSDsCounter, 0 mSdLazyCounter, 10232 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 7593 SdHoareTripleChecker+Invalid, 10282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 10232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:53:02,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 7593 Invalid, 10282 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [50 Valid, 10232 Invalid, 0 Unknown, 0 Unchecked, 33.9s Time] [2022-12-14 14:53:02,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2022-12-14 14:53:02,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 345. [2022-12-14 14:53:02,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 222 states have (on average 1.3468468468468469) internal successors, (299), 226 states have internal predecessors, (299), 88 states have call successors, (88), 35 states have call predecessors, (88), 34 states have return successors, (88), 85 states have call predecessors, (88), 87 states have call successors, (88) [2022-12-14 14:53:02,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 475 transitions. [2022-12-14 14:53:02,727 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 475 transitions. Word has length 99 [2022-12-14 14:53:02,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:53:02,727 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 475 transitions. [2022-12-14 14:53:02,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 41 states have internal predecessors, (50), 20 states have call successors, (21), 13 states have call predecessors, (21), 11 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2022-12-14 14:53:02,727 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 475 transitions. [2022-12-14 14:53:02,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-14 14:53:02,729 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:53:02,729 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:53:02,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:53:02,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:53:02,931 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:53:02,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:53:02,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1843405959, now seen corresponding path program 1 times [2022-12-14 14:53:02,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:53:02,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514818221] [2022-12-14 14:53:02,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:53:02,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:53:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:53:03,097 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 14:53:03,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:53:03,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514818221] [2022-12-14 14:53:03,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514818221] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:53:03,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061355109] [2022-12-14 14:53:03,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:53:03,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:53:03,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:53:03,099 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:53:03,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 14:53:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:53:03,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:53:03,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:53:03,333 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 14:53:03,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:53:03,377 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 14:53:03,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061355109] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:53:03,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1862017540] [2022-12-14 14:53:03,382 INFO L159 IcfgInterpreter]: Started Sifa with 87 locations of interest [2022-12-14 14:53:03,382 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:53:03,382 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:53:03,383 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:53:03,383 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:53:40,277 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 14:53:40,565 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 267 for LOIs [2022-12-14 14:53:42,280 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-12-14 14:53:42,318 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 14:53:42,609 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 267 for LOIs [2022-12-14 14:54:28,023 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 251 for LOIs [2022-12-14 14:54:28,679 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 251 for LOIs [2022-12-14 14:54:28,720 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 452 for LOIs [2022-12-14 14:54:29,290 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 249 for LOIs [2022-12-14 14:54:29,358 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 247 for LOIs [2022-12-14 14:54:29,398 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 473 for LOIs [2022-12-14 14:54:33,930 INFO L197 IcfgInterpreter]: Interpreting procedure isVerified with input of size 429 for LOIs [2022-12-14 14:54:34,160 INFO L197 IcfgInterpreter]: Interpreting procedure isSigned with input of size 251 for LOIs [2022-12-14 14:54:34,201 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:55:18,539 WARN L233 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 562 DAG size of output: 401 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:56:50,356 WARN L233 SmtUtils]: Spent 9.68s on a formula simplification. DAG size of input: 645 DAG size of output: 439 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:56:56,198 WARN L233 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 642 DAG size of output: 424 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:57:09,094 WARN L233 SmtUtils]: Spent 6.84s on a formula simplification. DAG size of input: 648 DAG size of output: 431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:57:20,897 WARN L233 SmtUtils]: Spent 5.79s on a formula simplification. DAG size of input: 646 DAG size of output: 494 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:57:28,932 WARN L233 SmtUtils]: Spent 7.05s on a formula simplification. DAG size of input: 682 DAG size of output: 530 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:57:38,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1862017540] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:57:38,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:57:38,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [71] imperfect sequences [4, 4, 4] total 77 [2022-12-14 14:57:38,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721092363] [2022-12-14 14:57:38,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:57:38,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-12-14 14:57:38,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:57:38,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-12-14 14:57:38,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=5570, Unknown=0, NotChecked=0, Total=5852 [2022-12-14 14:57:38,378 INFO L87 Difference]: Start difference. First operand 345 states and 475 transitions. Second operand has 72 states, 46 states have (on average 1.1521739130434783) internal successors, (53), 44 states have internal predecessors, (53), 21 states have call successors, (22), 14 states have call predecessors, (22), 12 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2022-12-14 14:58:50,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:58:50,858 INFO L93 Difference]: Finished difference Result 735 states and 1038 transitions. [2022-12-14 14:58:50,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-12-14 14:58:50,860 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 46 states have (on average 1.1521739130434783) internal successors, (53), 44 states have internal predecessors, (53), 21 states have call successors, (22), 14 states have call predecessors, (22), 12 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) Word has length 104 [2022-12-14 14:58:50,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:58:50,862 INFO L225 Difference]: With dead ends: 735 [2022-12-14 14:58:50,862 INFO L226 Difference]: Without dead ends: 626 [2022-12-14 14:58:50,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 237 SyntacticMatches, 2 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1929 ImplicationChecksByTransitivity, 218.5s TimeCoverageRelationStatistics Valid=387, Invalid=7803, Unknown=0, NotChecked=0, Total=8190 [2022-12-14 14:58:50,865 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 485 mSDsluCounter, 8290 mSDsCounter, 0 mSdLazyCounter, 11952 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 8592 SdHoareTripleChecker+Invalid, 12008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 11952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:58:50,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 8592 Invalid, 12008 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [56 Valid, 11952 Invalid, 0 Unknown, 0 Unchecked, 37.1s Time] [2022-12-14 14:58:50,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2022-12-14 14:58:51,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 474. [2022-12-14 14:58:51,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 315 states have (on average 1.3746031746031746) internal successors, (433), 321 states have internal predecessors, (433), 114 states have call successors, (114), 46 states have call predecessors, (114), 44 states have return successors, (115), 108 states have call predecessors, (115), 113 states have call successors, (115) [2022-12-14 14:58:51,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 662 transitions. [2022-12-14 14:58:51,170 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 662 transitions. Word has length 104 [2022-12-14 14:58:51,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:58:51,170 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 662 transitions. [2022-12-14 14:58:51,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 46 states have (on average 1.1521739130434783) internal successors, (53), 44 states have internal predecessors, (53), 21 states have call successors, (22), 14 states have call predecessors, (22), 12 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2022-12-14 14:58:51,170 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 662 transitions. [2022-12-14 14:58:51,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-14 14:58:51,172 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:58:51,172 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:58:51,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 14:58:51,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:58:51,374 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:58:51,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:58:51,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1680052418, now seen corresponding path program 1 times [2022-12-14 14:58:51,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:58:51,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494967087] [2022-12-14 14:58:51,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:58:51,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:58:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:58:51,489 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 14:58:51,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:58:51,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494967087] [2022-12-14 14:58:51,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494967087] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:58:51,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541199948] [2022-12-14 14:58:51,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:58:51,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:58:51,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:58:51,490 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:58:51,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ff7df5-47f3-4afc-ba57-21a3bb31ae1a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 14:58:51,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:58:51,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:58:51,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:58:51,728 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 14:58:51,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:58:51,772 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 14:58:51,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541199948] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:58:51,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1926702055] [2022-12-14 14:58:51,776 INFO L159 IcfgInterpreter]: Started Sifa with 85 locations of interest [2022-12-14 14:58:51,776 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:58:51,776 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:58:51,777 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:58:51,777 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:59:23,873 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 14:59:24,160 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 267 for LOIs [2022-12-14 14:59:25,909 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-12-14 14:59:25,946 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 14:59:26,236 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 267 for LOIs [2022-12-14 15:00:08,244 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 429 for LOIs [2022-12-14 15:00:10,155 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 452 for LOIs [2022-12-14 15:00:10,724 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 249 for LOIs [2022-12-14 15:00:10,795 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 247 for LOIs [2022-12-14 15:00:10,835 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 473 for LOIs [2022-12-14 15:00:13,959 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 251 for LOIs [2022-12-14 15:00:13,999 INFO L197 IcfgInterpreter]: Interpreting procedure isVerified with input of size 251 for LOIs [2022-12-14 15:00:14,040 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:00:54,810 WARN L233 SmtUtils]: Spent 11.30s on a formula simplification. DAG size of input: 589 DAG size of output: 462 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:01:06,548 WARN L233 SmtUtils]: Spent 11.47s on a formula simplification. DAG size of input: 591 DAG size of output: 464 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:01:22,989 WARN L233 SmtUtils]: Spent 7.64s on a formula simplification. DAG size of input: 473 DAG size of output: 364 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:01:41,228 WARN L233 SmtUtils]: Spent 7.13s on a formula simplification. DAG size of input: 452 DAG size of output: 346 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)