./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/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_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product28.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/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_4b284a2f-f45e-496a-8c35-0e1159eec75b/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 21774f07edc6bb728cb664e1a2361d7b986cd58290bb234c442a42ac18f35f10 --- 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 11:52:36,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:52:36,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:52:36,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:52:36,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:52:36,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:52:36,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:52:36,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:52:36,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:52:36,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:52:36,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:52:36,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:52:36,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:52:36,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:52:36,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:52:36,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:52:36,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:52:36,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:52:36,405 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:52:36,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:52:36,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:52:36,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:52:36,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:52:36,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:52:36,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:52:36,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:52:36,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:52:36,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:52:36,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:52:36,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:52:36,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:52:36,414 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:52:36,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:52:36,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:52:36,416 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:52:36,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:52:36,417 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:52:36,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:52:36,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:52:36,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:52:36,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:52:36,419 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 11:52:36,434 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:52:36,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:52:36,435 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:52:36,435 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:52:36,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:52:36,436 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:52:36,436 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:52:36,436 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:52:36,436 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:52:36,436 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:52:36,436 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:52:36,437 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:52:36,437 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:52:36,437 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:52:36,437 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:52:36,437 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:52:36,437 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:52:36,438 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:52:36,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:52:36,438 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:52:36,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:52:36,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:52:36,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:52:36,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:52:36,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:52:36,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:52:36,439 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:52:36,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:52:36,440 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:52:36,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:52:36,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:52:36,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:52:36,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:52:36,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:52:36,441 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:52:36,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:52:36,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:52:36,441 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:52:36,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:52:36,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:52:36,442 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:52:36,442 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_4b284a2f-f45e-496a-8c35-0e1159eec75b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21774f07edc6bb728cb664e1a2361d7b986cd58290bb234c442a42ac18f35f10 [2022-12-14 11:52:36,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:52:36,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:52:36,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:52:36,658 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:52:36,658 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:52:36,659 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec6_product28.cil.c [2022-12-14 11:52:39,171 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:52:39,391 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:52:39,392 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/sv-benchmarks/c/product-lines/email_spec6_product28.cil.c [2022-12-14 11:52:39,404 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/data/e6983f6e2/6ccb041a9e6047ed80e3bac67070be90/FLAGe3b85099e [2022-12-14 11:52:39,739 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/data/e6983f6e2/6ccb041a9e6047ed80e3bac67070be90 [2022-12-14 11:52:39,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:52:39,741 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:52:39,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:52:39,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:52:39,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:52:39,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:52:39" (1/1) ... [2022-12-14 11:52:39,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70944f22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:39, skipping insertion in model container [2022-12-14 11:52:39,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:52:39" (1/1) ... [2022-12-14 11:52:39,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:52:39,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:52:39,941 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:52:39,945 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:52:39,949 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:52:39,975 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:52:39,979 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:52:40,037 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:52:40,038 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:52:40,102 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_4b284a2f-f45e-496a-8c35-0e1159eec75b/sv-benchmarks/c/product-lines/email_spec6_product28.cil.c[64121,64134] [2022-12-14 11:52:40,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:52:40,115 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:52:40,127 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:52:40,128 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:52:40,130 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:52:40,135 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:52:40,137 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:52:40,161 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:52:40,162 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:52:40,195 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_4b284a2f-f45e-496a-8c35-0e1159eec75b/sv-benchmarks/c/product-lines/email_spec6_product28.cil.c[64121,64134] [2022-12-14 11:52:40,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:52:40,229 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:52:40,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:40 WrapperNode [2022-12-14 11:52:40,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:52:40,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:52:40,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:52:40,231 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:52:40,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:40" (1/1) ... [2022-12-14 11:52:40,267 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:40" (1/1) ... [2022-12-14 11:52:40,298 INFO L138 Inliner]: procedures = 129, calls = 215, calls flagged for inlining = 56, calls inlined = 46, statements flattened = 879 [2022-12-14 11:52:40,299 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:52:40,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:52:40,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:52:40,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:52:40,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:40" (1/1) ... [2022-12-14 11:52:40,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:40" (1/1) ... [2022-12-14 11:52:40,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:40" (1/1) ... [2022-12-14 11:52:40,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:40" (1/1) ... [2022-12-14 11:52:40,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:40" (1/1) ... [2022-12-14 11:52:40,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:40" (1/1) ... [2022-12-14 11:52:40,329 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:40" (1/1) ... [2022-12-14 11:52:40,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:40" (1/1) ... [2022-12-14 11:52:40,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:52:40,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:52:40,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:52:40,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:52:40,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:40" (1/1) ... [2022-12-14 11:52:40,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:52:40,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:52:40,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:52:40,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:52:40,389 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 11:52:40,389 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 11:52:40,390 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 11:52:40,390 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 11:52:40,390 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 11:52:40,390 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 11:52:40,390 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 11:52:40,390 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 11:52:40,390 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 11:52:40,390 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 11:52:40,390 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 11:52:40,390 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 11:52:40,390 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 11:52:40,391 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 11:52:40,391 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 11:52:40,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 11:52:40,391 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 11:52:40,391 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 11:52:40,391 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 11:52:40,391 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 11:52:40,391 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 11:52:40,391 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 11:52:40,391 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 11:52:40,391 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 11:52:40,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 11:52:40,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:52:40,392 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 11:52:40,392 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 11:52:40,392 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 11:52:40,392 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 11:52:40,392 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 11:52:40,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 11:52:40,392 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 11:52:40,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 11:52:40,392 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 11:52:40,392 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 11:52:40,392 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 11:52:40,393 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 11:52:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 11:52:40,393 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 11:52:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 11:52:40,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 11:52:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 11:52:40,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 11:52:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:52:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 11:52:40,393 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 11:52:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:52:40,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:52:40,546 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:52:40,548 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:52:41,094 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:52:41,402 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:52:41,402 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 11:52:41,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:52:41 BoogieIcfgContainer [2022-12-14 11:52:41,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:52:41,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:52:41,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:52:41,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:52:41,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:52:39" (1/3) ... [2022-12-14 11:52:41,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fedd330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:52:41, skipping insertion in model container [2022-12-14 11:52:41,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:40" (2/3) ... [2022-12-14 11:52:41,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fedd330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:52:41, skipping insertion in model container [2022-12-14 11:52:41,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:52:41" (3/3) ... [2022-12-14 11:52:41,412 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product28.cil.c [2022-12-14 11:52:41,428 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:52:41,428 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 11:52:41,471 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:52:41,476 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;@f381573, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:52:41,477 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 11:52:41,481 INFO L276 IsEmpty]: Start isEmpty. Operand has 184 states, 108 states have (on average 1.3333333333333333) internal successors, (144), 112 states have internal predecessors, (144), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-12-14 11:52:41,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-14 11:52:41,492 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:52:41,493 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:52:41,493 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:52:41,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:52:41,498 INFO L85 PathProgramCache]: Analyzing trace with hash -994189617, now seen corresponding path program 1 times [2022-12-14 11:52:41,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:52:41,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644269537] [2022-12-14 11:52:41,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:52:41,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:52:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:52:41,759 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:52:41,759 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:52:41,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644269537] [2022-12-14 11:52:41,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644269537] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:52:41,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:52:41,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:52:41,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777132418] [2022-12-14 11:52:41,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:52:41,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:52:41,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:52:41,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:52:41,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:52:41,796 INFO L87 Difference]: Start difference. First operand has 184 states, 108 states have (on average 1.3333333333333333) internal successors, (144), 112 states have internal predecessors, (144), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 11:52:41,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:52:41,908 INFO L93 Difference]: Finished difference Result 285 states and 374 transitions. [2022-12-14 11:52:41,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:52:41,910 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 77 [2022-12-14 11:52:41,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:52:41,921 INFO L225 Difference]: With dead ends: 285 [2022-12-14 11:52:41,921 INFO L226 Difference]: Without dead ends: 181 [2022-12-14 11:52:41,925 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 11:52:41,929 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:52:41,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 214 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:52:41,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-12-14 11:52:41,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2022-12-14 11:52:41,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 106 states have (on average 1.3018867924528301) internal successors, (138), 109 states have internal predecessors, (138), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-12-14 11:52:41,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 241 transitions. [2022-12-14 11:52:41,979 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 241 transitions. Word has length 77 [2022-12-14 11:52:41,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:52:41,981 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 241 transitions. [2022-12-14 11:52:41,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 11:52:41,981 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 241 transitions. [2022-12-14 11:52:41,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 11:52:41,985 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:52:41,985 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:52:41,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:52:41,986 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:52:41,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:52:41,987 INFO L85 PathProgramCache]: Analyzing trace with hash 274926794, now seen corresponding path program 1 times [2022-12-14 11:52:41,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:52:41,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763488193] [2022-12-14 11:52:41,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:52:41,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:52:42,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:52:42,173 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:52:42,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:52:42,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763488193] [2022-12-14 11:52:42,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763488193] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:52:42,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:52:42,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:52:42,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185204346] [2022-12-14 11:52:42,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:52:42,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:52:42,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:52:42,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:52:42,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:52:42,175 INFO L87 Difference]: Start difference. First operand 181 states and 241 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 11:52:42,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:52:42,269 INFO L93 Difference]: Finished difference Result 281 states and 362 transitions. [2022-12-14 11:52:42,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:52:42,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 78 [2022-12-14 11:52:42,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:52:42,272 INFO L225 Difference]: With dead ends: 281 [2022-12-14 11:52:42,272 INFO L226 Difference]: Without dead ends: 183 [2022-12-14 11:52:42,273 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 11:52:42,273 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 0 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:52:42,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 421 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:52:42,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-12-14 11:52:42,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2022-12-14 11:52:42,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 108 states have (on average 1.2962962962962963) internal successors, (140), 111 states have internal predecessors, (140), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-12-14 11:52:42,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 243 transitions. [2022-12-14 11:52:42,285 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 243 transitions. Word has length 78 [2022-12-14 11:52:42,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:52:42,285 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 243 transitions. [2022-12-14 11:52:42,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 11:52:42,286 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 243 transitions. [2022-12-14 11:52:42,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 11:52:42,287 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:52:42,287 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] [2022-12-14 11:52:42,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:52:42,287 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:52:42,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:52:42,288 INFO L85 PathProgramCache]: Analyzing trace with hash 253928121, now seen corresponding path program 1 times [2022-12-14 11:52:42,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:52:42,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085144068] [2022-12-14 11:52:42,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:52:42,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:52:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:52:42,375 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:52:42,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:52:42,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085144068] [2022-12-14 11:52:42,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085144068] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:52:42,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:52:42,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:52:42,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345941444] [2022-12-14 11:52:42,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:52:42,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:52:42,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:52:42,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:52:42,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:52:42,379 INFO L87 Difference]: Start difference. First operand 183 states and 243 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 11:52:42,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:52:42,467 INFO L93 Difference]: Finished difference Result 396 states and 545 transitions. [2022-12-14 11:52:42,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:52:42,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 83 [2022-12-14 11:52:42,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:52:42,470 INFO L225 Difference]: With dead ends: 396 [2022-12-14 11:52:42,471 INFO L226 Difference]: Without dead ends: 231 [2022-12-14 11:52:42,472 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 11:52:42,473 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 57 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:52:42,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 439 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:52:42,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-12-14 11:52:42,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 226. [2022-12-14 11:52:42,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 140 states have (on average 1.3785714285714286) internal successors, (193), 143 states have internal predecessors, (193), 63 states have call successors, (63), 22 states have call predecessors, (63), 22 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-14 11:52:42,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 318 transitions. [2022-12-14 11:52:42,495 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 318 transitions. Word has length 83 [2022-12-14 11:52:42,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:52:42,495 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 318 transitions. [2022-12-14 11:52:42,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 11:52:42,496 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 318 transitions. [2022-12-14 11:52:42,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 11:52:42,498 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:52:42,498 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] [2022-12-14 11:52:42,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 11:52:42,498 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:52:42,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:52:42,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1370594398, now seen corresponding path program 1 times [2022-12-14 11:52:42,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:52:42,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096132076] [2022-12-14 11:52:42,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:52:42,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:52:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:52:42,667 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:52:42,667 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:52:42,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096132076] [2022-12-14 11:52:42,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096132076] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:52:42,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019891329] [2022-12-14 11:52:42,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:52:42,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:52:42,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:52:42,670 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:52:42,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 11:52:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:52:42,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:52:42,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:52:42,976 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:52:42,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:52:43,045 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:52:43,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019891329] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:52:43,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [732305779] [2022-12-14 11:52:43,066 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2022-12-14 11:52:43,066 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:52:43,071 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:52:43,076 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:52:43,077 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:53:09,076 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 11:53:09,416 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 11:53:09,735 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:53:46,798 WARN L233 SmtUtils]: Spent 7.22s on a formula simplification. DAG size of input: 585 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:53:54,363 WARN L233 SmtUtils]: Spent 7.26s on a formula simplification. DAG size of input: 587 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:54:05,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [732305779] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:54:05,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:54:05,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 11:54:05,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061653743] [2022-12-14 11:54:05,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:54:05,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 11:54:05,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:54:05,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 11:54:05,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-12-14 11:54:05,479 INFO L87 Difference]: Start difference. First operand 226 states and 318 transitions. Second operand has 21 states, 16 states have (on average 2.625) internal successors, (42), 15 states have internal predecessors, (42), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2022-12-14 11:54:11,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:54:11,891 INFO L93 Difference]: Finished difference Result 531 states and 797 transitions. [2022-12-14 11:54:11,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-14 11:54:11,892 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.625) internal successors, (42), 15 states have internal predecessors, (42), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 84 [2022-12-14 11:54:11,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:54:11,894 INFO L225 Difference]: With dead ends: 531 [2022-12-14 11:54:11,894 INFO L226 Difference]: Without dead ends: 323 [2022-12-14 11:54:11,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 55.7s TimeCoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-12-14 11:54:11,896 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 133 mSDsluCounter, 3181 mSDsCounter, 0 mSdLazyCounter, 2005 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 3436 SdHoareTripleChecker+Invalid, 2014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:54:11,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 3436 Invalid, 2014 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2005 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-12-14 11:54:11,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-12-14 11:54:11,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 249. [2022-12-14 11:54:11,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 162 states have (on average 1.3950617283950617) internal successors, (226), 165 states have internal predecessors, (226), 63 states have call successors, (63), 23 states have call predecessors, (63), 23 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-14 11:54:11,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 351 transitions. [2022-12-14 11:54:11,976 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 351 transitions. Word has length 84 [2022-12-14 11:54:11,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:54:11,977 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 351 transitions. [2022-12-14 11:54:11,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.625) internal successors, (42), 15 states have internal predecessors, (42), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2022-12-14 11:54:11,977 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 351 transitions. [2022-12-14 11:54:11,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-14 11:54:11,978 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:54:11,978 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-12-14 11:54:11,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 11:54:12,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:54:12,180 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:54:12,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:54:12,181 INFO L85 PathProgramCache]: Analyzing trace with hash -2125455223, now seen corresponding path program 1 times [2022-12-14 11:54:12,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:54:12,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450610597] [2022-12-14 11:54:12,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:54:12,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:54:12,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:54:12,263 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:54:12,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:54:12,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450610597] [2022-12-14 11:54:12,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450610597] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:54:12,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:54:12,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:54:12,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263963799] [2022-12-14 11:54:12,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:54:12,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:54:12,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:54:12,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:54:12,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:54:12,266 INFO L87 Difference]: Start difference. First operand 249 states and 351 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 11:54:12,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:54:12,538 INFO L93 Difference]: Finished difference Result 591 states and 866 transitions. [2022-12-14 11:54:12,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:54:12,538 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 89 [2022-12-14 11:54:12,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:54:12,540 INFO L225 Difference]: With dead ends: 591 [2022-12-14 11:54:12,540 INFO L226 Difference]: Without dead ends: 366 [2022-12-14 11:54:12,541 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 11:54:12,542 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 55 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:54:12,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 434 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:54:12,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-12-14 11:54:12,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 361. [2022-12-14 11:54:12,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 249 states have (on average 1.4538152610441768) internal successors, (362), 252 states have internal predecessors, (362), 88 states have call successors, (88), 23 states have call predecessors, (88), 23 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2022-12-14 11:54:12,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 537 transitions. [2022-12-14 11:54:12,698 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 537 transitions. Word has length 89 [2022-12-14 11:54:12,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:54:12,698 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 537 transitions. [2022-12-14 11:54:12,698 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 11:54:12,698 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 537 transitions. [2022-12-14 11:54:12,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-12-14 11:54:12,700 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:54:12,700 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-12-14 11:54:12,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 11:54:12,701 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:54:12,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:54:12,701 INFO L85 PathProgramCache]: Analyzing trace with hash 38162165, now seen corresponding path program 1 times [2022-12-14 11:54:12,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:54:12,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963931825] [2022-12-14 11:54:12,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:54:12,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:54:12,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:54:12,836 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:54:12,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:54:12,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963931825] [2022-12-14 11:54:12,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963931825] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:54:12,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055853284] [2022-12-14 11:54:12,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:54:12,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:54:12,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:54:12,838 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:54:12,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 11:54:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:54:13,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 1088 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:54:13,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:54:13,064 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:54:13,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:54:13,116 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:54:13,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055853284] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:54:13,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [113303836] [2022-12-14 11:54:13,120 INFO L159 IcfgInterpreter]: Started Sifa with 73 locations of interest [2022-12-14 11:54:13,120 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:54:13,121 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:54:13,121 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:54:13,121 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:54:51,939 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 11:54:52,233 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 11:54:52,515 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:55:29,384 WARN L233 SmtUtils]: Spent 5.82s on a formula simplification. DAG size of input: 593 DAG size of output: 335 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:55:40,203 WARN L233 SmtUtils]: Spent 10.55s on a formula simplification. DAG size of input: 595 DAG size of output: 459 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:55:52,425 WARN L233 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 574 DAG size of output: 402 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:55:59,179 WARN L233 SmtUtils]: Spent 6.46s on a formula simplification. DAG size of input: 570 DAG size of output: 398 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:56:01,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [113303836] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:56:01,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:56:01,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 11:56:01,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932015954] [2022-12-14 11:56:01,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:56:01,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 11:56:01,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:56:01,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 11:56:01,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=767, Unknown=0, NotChecked=0, Total=870 [2022-12-14 11:56:01,431 INFO L87 Difference]: Start difference. First operand 361 states and 537 transitions. Second operand has 25 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 18 states have internal predecessors, (45), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2022-12-14 11:56:14,582 WARN L233 SmtUtils]: Spent 8.27s on a formula simplification. DAG size of input: 543 DAG size of output: 409 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:56:39,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:56:39,075 INFO L93 Difference]: Finished difference Result 816 states and 1274 transitions. [2022-12-14 11:56:39,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 11:56:39,076 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 18 states have internal predecessors, (45), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) Word has length 90 [2022-12-14 11:56:39,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:56:39,078 INFO L225 Difference]: With dead ends: 816 [2022-12-14 11:56:39,078 INFO L226 Difference]: Without dead ends: 518 [2022-12-14 11:56:39,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 99.4s TimeCoverageRelationStatistics Valid=182, Invalid=1224, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 11:56:39,079 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 281 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 2159 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 3258 SdHoareTripleChecker+Invalid, 2181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:56:39,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 3258 Invalid, 2181 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 2159 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-12-14 11:56:39,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-12-14 11:56:39,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 423. [2022-12-14 11:56:39,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 307 states have (on average 1.501628664495114) internal successors, (461), 312 states have internal predecessors, (461), 91 states have call successors, (91), 24 states have call predecessors, (91), 24 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2022-12-14 11:56:39,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 642 transitions. [2022-12-14 11:56:39,300 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 642 transitions. Word has length 90 [2022-12-14 11:56:39,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:56:39,300 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 642 transitions. [2022-12-14 11:56:39,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 18 states have internal predecessors, (45), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2022-12-14 11:56:39,300 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 642 transitions. [2022-12-14 11:56:39,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 11:56:39,302 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:56:39,302 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 11:56:39,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 11:56:39,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:56:39,504 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:56:39,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:56:39,505 INFO L85 PathProgramCache]: Analyzing trace with hash 631622118, now seen corresponding path program 1 times [2022-12-14 11:56:39,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:56:39,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284574214] [2022-12-14 11:56:39,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:56:39,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:56:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:56:39,647 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:56:39,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:56:39,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284574214] [2022-12-14 11:56:39,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284574214] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:56:39,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514051553] [2022-12-14 11:56:39,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:56:39,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:56:39,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:56:39,649 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:56:39,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 11:56:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:56:39,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 1194 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:56:39,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:56:39,894 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:56:39,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:56:39,945 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:56:39,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514051553] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:56:39,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [765505818] [2022-12-14 11:56:39,948 INFO L159 IcfgInterpreter]: Started Sifa with 78 locations of interest [2022-12-14 11:56:39,948 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:56:39,949 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:56:39,949 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:56:39,949 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:57:11,451 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 11:57:11,737 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-12-14 11:57:11,799 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 247 for LOIs [2022-12-14 11:57:11,866 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 253 for LOIs [2022-12-14 11:57:11,942 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 11:57:12,235 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:57:50,992 WARN L233 SmtUtils]: Spent 11.79s on a formula simplification. DAG size of input: 636 DAG size of output: 514 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:57:57,575 WARN L233 SmtUtils]: Spent 6.29s on a formula simplification. DAG size of input: 638 DAG size of output: 408 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:58:07,666 WARN L233 SmtUtils]: Spent 6.16s on a formula simplification. DAG size of input: 562 DAG size of output: 346 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:58:12,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [765505818] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:58:12,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:58:12,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 11:58:12,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943520315] [2022-12-14 11:58:12,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:58:12,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 11:58:12,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:58:12,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 11:58:12,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 11:58:12,392 INFO L87 Difference]: Start difference. First operand 423 states and 642 transitions. Second operand has 30 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 18 states have internal predecessors, (45), 10 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) [2022-12-14 11:58:31,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:58:31,311 INFO L93 Difference]: Finished difference Result 880 states and 1377 transitions. [2022-12-14 11:58:31,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 11:58:31,312 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 18 states have internal predecessors, (45), 10 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) Word has length 93 [2022-12-14 11:58:31,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:58:31,313 INFO L225 Difference]: With dead ends: 880 [2022-12-14 11:58:31,314 INFO L226 Difference]: Without dead ends: 582 [2022-12-14 11:58:31,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 67.3s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 11:58:31,315 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 140 mSDsluCounter, 3581 mSDsCounter, 0 mSdLazyCounter, 3369 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 3797 SdHoareTripleChecker+Invalid, 3379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:58:31,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 3797 Invalid, 3379 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3369 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2022-12-14 11:58:31,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2022-12-14 11:58:31,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 508. [2022-12-14 11:58:31,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 384 states have (on average 1.5260416666666667) internal successors, (586), 391 states have internal predecessors, (586), 96 states have call successors, (96), 27 states have call predecessors, (96), 27 states have return successors, (95), 91 states have call predecessors, (95), 95 states have call successors, (95) [2022-12-14 11:58:31,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 777 transitions. [2022-12-14 11:58:31,633 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 777 transitions. Word has length 93 [2022-12-14 11:58:31,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:58:31,633 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 777 transitions. [2022-12-14 11:58:31,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 18 states have internal predecessors, (45), 10 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) [2022-12-14 11:58:31,634 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 777 transitions. [2022-12-14 11:58:31,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-14 11:58:31,635 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:58:31,635 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 11:58:31,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 11:58:31,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:58:31,836 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:58:31,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:58:31,837 INFO L85 PathProgramCache]: Analyzing trace with hash -601445403, now seen corresponding path program 1 times [2022-12-14 11:58:31,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:58:31,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692889935] [2022-12-14 11:58:31,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:58:31,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:58:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:58:31,948 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:58:31,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:58:31,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692889935] [2022-12-14 11:58:31,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692889935] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:58:31,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387959358] [2022-12-14 11:58:31,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:58:31,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:58:31,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:58:31,950 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:58:31,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 11:58:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:58:32,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:58:32,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:58:32,171 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:58:32,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:58:32,221 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 11:58:32,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387959358] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:58:32,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [140887864] [2022-12-14 11:58:32,224 INFO L159 IcfgInterpreter]: Started Sifa with 77 locations of interest [2022-12-14 11:58:32,224 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:58:32,224 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:58:32,225 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:58:32,225 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:59:06,188 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 11:59:06,470 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 11:59:06,755 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:59:41,920 WARN L233 SmtUtils]: Spent 7.24s on a formula simplification. DAG size of input: 601 DAG size of output: 338 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:59:50,018 WARN L233 SmtUtils]: Spent 7.83s on a formula simplification. DAG size of input: 603 DAG size of output: 338 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:00:11,502 WARN L233 SmtUtils]: Spent 6.20s on a formula simplification. DAG size of input: 580 DAG size of output: 412 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:00:17,834 WARN L233 SmtUtils]: Spent 6.04s on a formula simplification. DAG size of input: 576 DAG size of output: 408 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:00:23,440 WARN L233 SmtUtils]: Spent 5.29s on a formula simplification. DAG size of input: 578 DAG size of output: 415 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:00:28,962 WARN L233 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 574 DAG size of output: 411 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:00:36,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [140887864] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:36,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:00:36,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-12-14 12:00:36,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441587390] [2022-12-14 12:00:36,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:36,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 12:00:36,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:36,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 12:00:36,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=975, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 12:00:36,883 INFO L87 Difference]: Start difference. First operand 508 states and 777 transitions. Second operand has 29 states, 24 states have (on average 2.0833333333333335) internal successors, (50), 23 states have internal predecessors, (50), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2022-12-14 12:00:43,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:43,153 INFO L93 Difference]: Finished difference Result 949 states and 1485 transitions. [2022-12-14 12:00:43,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-14 12:00:43,154 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 24 states have (on average 2.0833333333333335) internal successors, (50), 23 states have internal predecessors, (50), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 92 [2022-12-14 12:00:43,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:43,156 INFO L225 Difference]: With dead ends: 949 [2022-12-14 12:00:43,156 INFO L226 Difference]: Without dead ends: 608 [2022-12-14 12:00:43,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 90.1s TimeCoverageRelationStatistics Valid=147, Invalid=975, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 12:00:43,157 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 231 mSDsluCounter, 2619 mSDsCounter, 0 mSdLazyCounter, 1875 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 2836 SdHoareTripleChecker+Invalid, 1883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:43,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 2836 Invalid, 1883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1875 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-12-14 12:00:43,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2022-12-14 12:00:43,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 527. [2022-12-14 12:00:43,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 403 states have (on average 1.5235732009925558) internal successors, (614), 410 states have internal predecessors, (614), 96 states have call successors, (96), 27 states have call predecessors, (96), 27 states have return successors, (95), 91 states have call predecessors, (95), 95 states have call successors, (95) [2022-12-14 12:00:43,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 805 transitions. [2022-12-14 12:00:43,524 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 805 transitions. Word has length 92 [2022-12-14 12:00:43,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:43,524 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 805 transitions. [2022-12-14 12:00:43,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 24 states have (on average 2.0833333333333335) internal successors, (50), 23 states have internal predecessors, (50), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2022-12-14 12:00:43,525 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 805 transitions. [2022-12-14 12:00:43,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 12:00:43,526 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:43,526 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-12-14 12:00:43,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 12:00:43,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:00:43,727 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:00:43,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:43,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1107914063, now seen corresponding path program 1 times [2022-12-14 12:00:43,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:43,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406311150] [2022-12-14 12:00:43,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:43,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:43,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:43,819 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 12:00:43,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:43,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406311150] [2022-12-14 12:00:43,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406311150] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:00:43,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433585907] [2022-12-14 12:00:43,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:43,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:00:43,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:00:43,820 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:00:43,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 12:00:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:43,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 1102 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 12:00:44,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:00:44,018 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 12:00:44,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:00:44,061 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 12:00:44,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433585907] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:00:44,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2117827455] [2022-12-14 12:00:44,064 INFO L159 IcfgInterpreter]: Started Sifa with 73 locations of interest [2022-12-14 12:00:44,064 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:00:44,064 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:00:44,064 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:00:44,064 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:01:51,201 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 12:01:51,491 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 12:01:51,773 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:02:44,197 WARN L233 SmtUtils]: Spent 6.80s on a formula simplification. DAG size of input: 586 DAG size of output: 443 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:02:53,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2117827455] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:02:53,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:02:53,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [5, 5, 5] total 29 [2022-12-14 12:02:53,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936728421] [2022-12-14 12:02:53,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:02:53,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 12:02:53,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:02:53,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 12:02:53,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=710, Unknown=0, NotChecked=0, Total=812 [2022-12-14 12:02:53,111 INFO L87 Difference]: Start difference. First operand 527 states and 805 transitions. Second operand has 24 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 states have internal predecessors, (46), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2022-12-14 12:03:24,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:03:24,437 INFO L93 Difference]: Finished difference Result 1067 states and 1700 transitions. [2022-12-14 12:03:24,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 12:03:24,438 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 states have internal predecessors, (46), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) Word has length 95 [2022-12-14 12:03:24,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:03:24,440 INFO L225 Difference]: With dead ends: 1067 [2022-12-14 12:03:24,440 INFO L226 Difference]: Without dead ends: 741 [2022-12-14 12:03:24,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 258 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 83.5s TimeCoverageRelationStatistics Valid=208, Invalid=1198, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 12:03:24,441 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 289 mSDsluCounter, 3205 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 3439 SdHoareTripleChecker+Invalid, 2557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:03:24,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 3439 Invalid, 2557 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-12-14 12:03:24,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2022-12-14 12:03:24,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 591. [2022-12-14 12:03:24,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 467 states have (on average 1.54389721627409) internal successors, (721), 474 states have internal predecessors, (721), 96 states have call successors, (96), 27 states have call predecessors, (96), 27 states have return successors, (95), 91 states have call predecessors, (95), 95 states have call successors, (95) [2022-12-14 12:03:24,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 912 transitions. [2022-12-14 12:03:24,979 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 912 transitions. Word has length 95 [2022-12-14 12:03:24,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:03:24,979 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 912 transitions. [2022-12-14 12:03:24,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 states have internal predecessors, (46), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2022-12-14 12:03:24,979 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 912 transitions. [2022-12-14 12:03:24,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-14 12:03:24,980 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:03:24,980 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1] [2022-12-14 12:03:24,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 12:03:25,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-12-14 12:03:25,182 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:03:25,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:03:25,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1495943395, now seen corresponding path program 1 times [2022-12-14 12:03:25,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:03:25,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093675061] [2022-12-14 12:03:25,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:03:25,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:03:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:03:25,304 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 12:03:25,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:03:25,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093675061] [2022-12-14 12:03:25,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093675061] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:03:25,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045644537] [2022-12-14 12:03:25,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:03:25,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:03:25,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:03:25,306 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:03:25,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 12:03:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:03:25,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 1208 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 12:03:25,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:03:25,533 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 12:03:25,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:03:25,582 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 12:03:25,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045644537] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:03:25,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [34250156] [2022-12-14 12:03:25,585 INFO L159 IcfgInterpreter]: Started Sifa with 80 locations of interest [2022-12-14 12:03:25,586 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:03:25,586 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:03:25,586 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:03:25,586 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:04:15,118 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 12:04:15,399 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-12-14 12:04:15,460 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 247 for LOIs [2022-12-14 12:04:15,523 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 222 for LOIs [2022-12-14 12:04:15,585 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 12:04:15,873 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:05:06,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [34250156] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:05:06,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:05:06,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [5, 5, 5] total 37 [2022-12-14 12:05:06,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229290308] [2022-12-14 12:05:06,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:05:06,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-12-14 12:05:06,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:05:06,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-12-14 12:05:06,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1213, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 12:05:06,283 INFO L87 Difference]: Start difference. First operand 591 states and 912 transitions. Second operand has 32 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 20 states have internal predecessors, (48), 10 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) [2022-12-14 12:05:33,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:05:33,172 INFO L93 Difference]: Finished difference Result 1048 states and 1636 transitions. [2022-12-14 12:05:33,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 12:05:33,173 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 20 states have internal predecessors, (48), 10 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) Word has length 98 [2022-12-14 12:05:33,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:05:33,175 INFO L225 Difference]: With dead ends: 1048 [2022-12-14 12:05:33,175 INFO L226 Difference]: Without dead ends: 660 [2022-12-14 12:05:33,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 260 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 65.5s TimeCoverageRelationStatistics Valid=191, Invalid=1879, Unknown=0, NotChecked=0, Total=2070 [2022-12-14 12:05:33,177 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 169 mSDsluCounter, 3861 mSDsCounter, 0 mSdLazyCounter, 3966 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 4113 SdHoareTripleChecker+Invalid, 3989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 3966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:05:33,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 4113 Invalid, 3989 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 3966 Invalid, 0 Unknown, 0 Unchecked, 10.9s Time] [2022-12-14 12:05:33,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2022-12-14 12:05:33,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 562. [2022-12-14 12:05:33,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 438 states have (on average 1.5114155251141552) internal successors, (662), 445 states have internal predecessors, (662), 96 states have call successors, (96), 27 states have call predecessors, (96), 27 states have return successors, (95), 91 states have call predecessors, (95), 95 states have call successors, (95) [2022-12-14 12:05:33,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 853 transitions. [2022-12-14 12:05:33,679 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 853 transitions. Word has length 98 [2022-12-14 12:05:33,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:05:33,679 INFO L495 AbstractCegarLoop]: Abstraction has 562 states and 853 transitions. [2022-12-14 12:05:33,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 20 states have internal predecessors, (48), 10 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) [2022-12-14 12:05:33,680 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 853 transitions. [2022-12-14 12:05:33,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-12-14 12:05:33,681 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:05:33,681 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-12-14 12:05:33,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 12:05:33,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 12:05:33,883 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:05:33,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:05:33,884 INFO L85 PathProgramCache]: Analyzing trace with hash -403249138, now seen corresponding path program 1 times [2022-12-14 12:05:33,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:05:33,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821389900] [2022-12-14 12:05:33,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:05:33,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:05:33,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:05:34,015 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 12:05:34,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:05:34,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821389900] [2022-12-14 12:05:34,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821389900] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:05:34,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397674870] [2022-12-14 12:05:34,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:05:34,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:05:34,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:05:34,017 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:05:34,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b284a2f-f45e-496a-8c35-0e1159eec75b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 12:05:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:05:34,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 1215 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 12:05:34,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:05:34,223 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 12:05:34,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:05:34,267 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 12:05:34,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397674870] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:05:34,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [87689383] [2022-12-14 12:05:34,269 INFO L159 IcfgInterpreter]: Started Sifa with 80 locations of interest [2022-12-14 12:05:34,269 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:05:34,269 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:05:34,269 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:05:34,269 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs