./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/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_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product16.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/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_bc92970d-44c6-4fb5-8e40-a594f59c6736/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 14dde7567748bafe076b052fc50547f9c42c454af1c5c326a7b2a07549e9af32 --- 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 11:31:09,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:31:09,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:31:09,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:31:09,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:31:09,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:31:09,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:31:09,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:31:09,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:31:09,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:31:09,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:31:09,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:31:09,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:31:09,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:31:09,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:31:09,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:31:09,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:31:09,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:31:09,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:31:09,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:31:09,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:31:09,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:31:09,397 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:31:09,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:31:09,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:31:09,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:31:09,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:31:09,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:31:09,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:31:09,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:31:09,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:31:09,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:31:09,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:31:09,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:31:09,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:31:09,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:31:09,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:31:09,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:31:09,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:31:09,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:31:09,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:31:09,406 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 11:31:09,420 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:31:09,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:31:09,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:31:09,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:31:09,427 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:31:09,427 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:31:09,427 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:31:09,427 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:31:09,427 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:31:09,427 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:31:09,427 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:31:09,428 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:31:09,428 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:31:09,428 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:31:09,428 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:31:09,428 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:31:09,428 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:31:09,428 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:31:09,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:31:09,429 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:31:09,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:31:09,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:31:09,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:31:09,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:31:09,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:31:09,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:31:09,430 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:31:09,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:31:09,430 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:31:09,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:31:09,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:31:09,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:31:09,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:31:09,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:31:09,431 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:31:09,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:31:09,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:31:09,431 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:31:09,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:31:09,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:31:09,431 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:31:09,431 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_bc92970d-44c6-4fb5-8e40-a594f59c6736/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14dde7567748bafe076b052fc50547f9c42c454af1c5c326a7b2a07549e9af32 [2022-12-14 11:31:09,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:31:09,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:31:09,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:31:09,624 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:31:09,625 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:31:09,626 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec6_product16.cil.c [2022-12-14 11:31:12,233 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:31:12,415 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:31:12,415 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/sv-benchmarks/c/product-lines/email_spec6_product16.cil.c [2022-12-14 11:31:12,426 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/data/fe679cf96/c4a3c719f58445ccbf037477e9cea690/FLAG6ea2e7f5b [2022-12-14 11:31:12,437 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/data/fe679cf96/c4a3c719f58445ccbf037477e9cea690 [2022-12-14 11:31:12,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:31:12,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:31:12,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:31:12,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:31:12,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:31:12,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:31:12" (1/1) ... [2022-12-14 11:31:12,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47f03511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:12, skipping insertion in model container [2022-12-14 11:31:12,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:31:12" (1/1) ... [2022-12-14 11:31:12,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:31:12,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:31:12,647 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:31:12,650 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:31:12,655 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:31:12,754 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_bc92970d-44c6-4fb5-8e40-a594f59c6736/sv-benchmarks/c/product-lines/email_spec6_product16.cil.c[39829,39842] [2022-12-14 11:31:12,805 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:31:12,806 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:31:12,813 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:31:12,815 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:31:12,820 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:31:12,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:31:12,830 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:31:12,841 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:31:12,842 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:31:12,844 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:31:12,873 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_bc92970d-44c6-4fb5-8e40-a594f59c6736/sv-benchmarks/c/product-lines/email_spec6_product16.cil.c[39829,39842] [2022-12-14 11:31:12,892 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:31:12,892 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:31:12,894 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:31:12,895 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:31:12,898 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:31:12,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:31:12,918 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:31:12,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:12 WrapperNode [2022-12-14 11:31:12,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:31:12,920 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:31:12,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:31:12,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:31:12,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:12" (1/1) ... [2022-12-14 11:31:12,943 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:12" (1/1) ... [2022-12-14 11:31:12,974 INFO L138 Inliner]: procedures = 126, calls = 203, calls flagged for inlining = 55, calls inlined = 50, statements flattened = 969 [2022-12-14 11:31:12,974 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:31:12,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:31:12,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:31:12,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:31:12,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:12" (1/1) ... [2022-12-14 11:31:12,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:12" (1/1) ... [2022-12-14 11:31:12,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:12" (1/1) ... [2022-12-14 11:31:12,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:12" (1/1) ... [2022-12-14 11:31:12,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:12" (1/1) ... [2022-12-14 11:31:13,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:12" (1/1) ... [2022-12-14 11:31:13,005 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:12" (1/1) ... [2022-12-14 11:31:13,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:12" (1/1) ... [2022-12-14 11:31:13,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:31:13,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:31:13,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:31:13,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:31:13,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:12" (1/1) ... [2022-12-14 11:31:13,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:31:13,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:31:13,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:31:13,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:31:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 11:31:13,073 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 11:31:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 11:31:13,073 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 11:31:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 11:31:13,074 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 11:31:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 11:31:13,074 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 11:31:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 11:31:13,074 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 11:31:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 11:31:13,075 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 11:31:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 11:31:13,075 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 11:31:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 11:31:13,075 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 11:31:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 11:31:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 11:31:13,075 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 11:31:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:31:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 11:31:13,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 11:31:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 11:31:13,076 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 11:31:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 11:31:13,076 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 11:31:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 11:31:13,077 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 11:31:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 11:31:13,077 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 11:31:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 11:31:13,077 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 11:31:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 11:31:13,077 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 11:31:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 11:31:13,078 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 11:31:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:31:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 11:31:13,078 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 11:31:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:31:13,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:31:13,220 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:31:13,222 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:31:13,765 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:31:14,030 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:31:14,030 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 11:31:14,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:31:14 BoogieIcfgContainer [2022-12-14 11:31:14,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:31:14,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:31:14,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:31:14,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:31:14,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:31:12" (1/3) ... [2022-12-14 11:31:14,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402a3a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:31:14, skipping insertion in model container [2022-12-14 11:31:14,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:31:12" (2/3) ... [2022-12-14 11:31:14,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402a3a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:31:14, skipping insertion in model container [2022-12-14 11:31:14,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:31:14" (3/3) ... [2022-12-14 11:31:14,041 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product16.cil.c [2022-12-14 11:31:14,060 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:31:14,060 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 11:31:14,111 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:31:14,117 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;@483780f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:31:14,117 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 11:31:14,123 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 98 states have (on average 1.346938775510204) internal successors, (132), 102 states have internal predecessors, (132), 49 states have call successors, (49), 18 states have call predecessors, (49), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-12-14 11:31:14,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 11:31:14,135 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:31:14,136 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:31:14,136 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:31:14,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:31:14,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1567870214, now seen corresponding path program 1 times [2022-12-14 11:31:14,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:31:14,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757068306] [2022-12-14 11:31:14,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:31:14,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:31:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:31:14,361 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:31:14,362 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:31:14,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757068306] [2022-12-14 11:31:14,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757068306] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:31:14,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:31:14,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:31:14,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345028855] [2022-12-14 11:31:14,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:31:14,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:31:14,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:31:14,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:31:14,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:31:14,393 INFO L87 Difference]: Start difference. First operand has 167 states, 98 states have (on average 1.346938775510204) internal successors, (132), 102 states have internal predecessors, (132), 49 states have call successors, (49), 18 states have call predecessors, (49), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 11:31:14,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:31:14,493 INFO L93 Difference]: Finished difference Result 251 states and 338 transitions. [2022-12-14 11:31:14,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:31:14,496 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 72 [2022-12-14 11:31:14,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:31:14,506 INFO L225 Difference]: With dead ends: 251 [2022-12-14 11:31:14,506 INFO L226 Difference]: Without dead ends: 164 [2022-12-14 11:31:14,510 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 11:31:14,513 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 196 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 11:31:14,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 196 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:31:14,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-12-14 11:31:14,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2022-12-14 11:31:14,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 96 states have (on average 1.3125) internal successors, (126), 99 states have internal predecessors, (126), 49 states have call successors, (49), 18 states have call predecessors, (49), 18 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-12-14 11:31:14,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 223 transitions. [2022-12-14 11:31:14,566 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 223 transitions. Word has length 72 [2022-12-14 11:31:14,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:31:14,567 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 223 transitions. [2022-12-14 11:31:14,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 11:31:14,568 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 223 transitions. [2022-12-14 11:31:14,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 11:31:14,571 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:31:14,571 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:31:14,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:31:14,572 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:31:14,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:31:14,573 INFO L85 PathProgramCache]: Analyzing trace with hash -572405344, now seen corresponding path program 1 times [2022-12-14 11:31:14,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:31:14,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676798723] [2022-12-14 11:31:14,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:31:14,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:31:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:31:14,710 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:31:14,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:31:14,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676798723] [2022-12-14 11:31:14,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676798723] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:31:14,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:31:14,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:31:14,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888157643] [2022-12-14 11:31:14,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:31:14,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:31:14,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:31:14,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:31:14,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:31:14,715 INFO L87 Difference]: Start difference. First operand 164 states and 223 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 11:31:14,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:31:14,808 INFO L93 Difference]: Finished difference Result 247 states and 326 transitions. [2022-12-14 11:31:14,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:31:14,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 73 [2022-12-14 11:31:14,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:31:14,810 INFO L225 Difference]: With dead ends: 247 [2022-12-14 11:31:14,810 INFO L226 Difference]: Without dead ends: 166 [2022-12-14 11:31:14,811 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 11:31:14,811 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 0 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 385 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 11:31:14,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 385 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:31:14,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-12-14 11:31:14,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-12-14 11:31:14,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 98 states have (on average 1.3061224489795917) internal successors, (128), 101 states have internal predecessors, (128), 49 states have call successors, (49), 18 states have call predecessors, (49), 18 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-12-14 11:31:14,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 225 transitions. [2022-12-14 11:31:14,824 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 225 transitions. Word has length 73 [2022-12-14 11:31:14,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:31:14,824 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 225 transitions. [2022-12-14 11:31:14,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 11:31:14,824 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 225 transitions. [2022-12-14 11:31:14,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 11:31:14,826 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:31:14,826 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 11:31:14,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:31:14,827 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:31:14,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:31:14,827 INFO L85 PathProgramCache]: Analyzing trace with hash 2015054853, now seen corresponding path program 1 times [2022-12-14 11:31:14,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:31:14,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958691515] [2022-12-14 11:31:14,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:31:14,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:31:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:31:14,896 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:31:14,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:31:14,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958691515] [2022-12-14 11:31:14,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958691515] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:31:14,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:31:14,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:31:14,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451515633] [2022-12-14 11:31:14,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:31:14,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:31:14,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:31:14,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:31:14,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:31:14,899 INFO L87 Difference]: Start difference. First operand 166 states and 225 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 11:31:14,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:31:14,989 INFO L93 Difference]: Finished difference Result 362 states and 509 transitions. [2022-12-14 11:31:14,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:31:14,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 78 [2022-12-14 11:31:14,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:31:14,992 INFO L225 Difference]: With dead ends: 362 [2022-12-14 11:31:14,992 INFO L226 Difference]: Without dead ends: 214 [2022-12-14 11:31:14,994 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 11:31:14,995 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 57 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:31:14,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 393 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:31:14,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-12-14 11:31:15,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 209. [2022-12-14 11:31:15,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 130 states have (on average 1.3923076923076922) internal successors, (181), 133 states have internal predecessors, (181), 60 states have call successors, (60), 18 states have call predecessors, (60), 18 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2022-12-14 11:31:15,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 300 transitions. [2022-12-14 11:31:15,017 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 300 transitions. Word has length 78 [2022-12-14 11:31:15,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:31:15,017 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 300 transitions. [2022-12-14 11:31:15,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 11:31:15,017 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 300 transitions. [2022-12-14 11:31:15,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 11:31:15,020 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:31:15,021 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:31:15,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 11:31:15,021 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:31:15,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:31:15,021 INFO L85 PathProgramCache]: Analyzing trace with hash 886908213, now seen corresponding path program 1 times [2022-12-14 11:31:15,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:31:15,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011875587] [2022-12-14 11:31:15,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:31:15,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:31:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:31:15,182 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:31:15,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:31:15,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011875587] [2022-12-14 11:31:15,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011875587] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:31:15,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733922264] [2022-12-14 11:31:15,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:31:15,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:31:15,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:31:15,184 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:31:15,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 11:31:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:31:15,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:31:15,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:31:15,436 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:31:15,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:31:15,497 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:31:15,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733922264] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:31:15,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1072581564] [2022-12-14 11:31:15,519 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2022-12-14 11:31:15,519 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:31:15,523 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:31:15,528 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:31:15,528 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:31:40,458 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 11:31:40,776 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 11:31:41,090 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:32:17,331 WARN L233 SmtUtils]: Spent 5.65s on a formula simplification. DAG size of input: 582 DAG size of output: 332 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:32:23,674 WARN L233 SmtUtils]: Spent 6.05s on a formula simplification. DAG size of input: 584 DAG size of output: 332 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:32:32,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1072581564] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:32:32,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:32:32,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 11:32:32,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575540794] [2022-12-14 11:32:32,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:32:32,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 11:32:32,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:32:32,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 11:32:32,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2022-12-14 11:32:32,100 INFO L87 Difference]: Start difference. First operand 209 states and 300 transitions. Second operand has 21 states, 16 states have (on average 2.5) internal successors, (40), 15 states have internal predecessors, (40), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2022-12-14 11:32:36,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:32:36,982 INFO L93 Difference]: Finished difference Result 497 states and 761 transitions. [2022-12-14 11:32:36,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-14 11:32:36,983 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.5) internal successors, (40), 15 states have internal predecessors, (40), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) Word has length 79 [2022-12-14 11:32:36,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:32:36,987 INFO L225 Difference]: With dead ends: 497 [2022-12-14 11:32:36,987 INFO L226 Difference]: Without dead ends: 306 [2022-12-14 11:32:36,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 51.0s TimeCoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2022-12-14 11:32:36,992 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 158 mSDsluCounter, 2259 mSDsCounter, 0 mSdLazyCounter, 1561 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 2495 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:32:36,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 2495 Invalid, 1570 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1561 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-12-14 11:32:36,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-12-14 11:32:37,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 232. [2022-12-14 11:32:37,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 152 states have (on average 1.4078947368421053) internal successors, (214), 155 states have internal predecessors, (214), 60 states have call successors, (60), 19 states have call predecessors, (60), 19 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2022-12-14 11:32:37,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 333 transitions. [2022-12-14 11:32:37,133 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 333 transitions. Word has length 79 [2022-12-14 11:32:37,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:32:37,133 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 333 transitions. [2022-12-14 11:32:37,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.5) internal successors, (40), 15 states have internal predecessors, (40), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2022-12-14 11:32:37,133 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 333 transitions. [2022-12-14 11:32:37,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 11:32:37,135 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:32:37,135 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:32:37,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 11:32:37,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:32:37,337 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:32:37,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:32:37,338 INFO L85 PathProgramCache]: Analyzing trace with hash -828067869, now seen corresponding path program 1 times [2022-12-14 11:32:37,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:32:37,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951620534] [2022-12-14 11:32:37,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:37,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:32:37,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:37,434 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 11:32:37,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:32:37,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951620534] [2022-12-14 11:32:37,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951620534] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:32:37,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:32:37,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:32:37,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077797244] [2022-12-14 11:32:37,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:32:37,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:32:37,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:32:37,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:32:37,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:32:37,436 INFO L87 Difference]: Start difference. First operand 232 states and 333 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 11:32:37,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:32:37,690 INFO L93 Difference]: Finished difference Result 557 states and 830 transitions. [2022-12-14 11:32:37,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:32:37,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 84 [2022-12-14 11:32:37,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:32:37,694 INFO L225 Difference]: With dead ends: 557 [2022-12-14 11:32:37,694 INFO L226 Difference]: Without dead ends: 349 [2022-12-14 11:32:37,695 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 11:32:37,696 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 55 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 407 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 11:32:37,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 407 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:32:37,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-12-14 11:32:37,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 344. [2022-12-14 11:32:37,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 239 states have (on average 1.4644351464435146) internal successors, (350), 242 states have internal predecessors, (350), 85 states have call successors, (85), 19 states have call predecessors, (85), 19 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2022-12-14 11:32:37,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 519 transitions. [2022-12-14 11:32:37,947 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 519 transitions. Word has length 84 [2022-12-14 11:32:37,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:32:37,947 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 519 transitions. [2022-12-14 11:32:37,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 11:32:37,948 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 519 transitions. [2022-12-14 11:32:37,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 11:32:37,952 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:32:37,952 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:32:37,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 11:32:37,952 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:32:37,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:32:37,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1591212304, now seen corresponding path program 1 times [2022-12-14 11:32:37,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:32:37,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687052560] [2022-12-14 11:32:37,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:37,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:32:37,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:38,112 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 11:32:38,112 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:32:38,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687052560] [2022-12-14 11:32:38,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687052560] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:32:38,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976540784] [2022-12-14 11:32:38,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:38,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:32:38,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:32:38,114 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:32:38,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 11:32:38,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:38,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:32:38,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:32:38,331 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 11:32:38,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:32:38,379 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 11:32:38,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976540784] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:32:38,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [188740902] [2022-12-14 11:32:38,382 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2022-12-14 11:32:38,382 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:32:38,382 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:32:38,382 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:32:38,382 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:33:27,256 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 11:33:27,571 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 11:33:27,878 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:34:11,159 WARN L233 SmtUtils]: Spent 9.60s on a formula simplification. DAG size of input: 583 DAG size of output: 414 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:34:29,934 WARN L233 SmtUtils]: Spent 5.74s on a formula simplification. DAG size of input: 576 DAG size of output: 411 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:34:39,601 WARN L233 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 584 DAG size of output: 433 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:34:39,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [188740902] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:34:39,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:34:39,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 11:34:39,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534737960] [2022-12-14 11:34:39,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:34:39,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 11:34:39,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:34:39,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 11:34:39,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=758, Unknown=0, NotChecked=0, Total=870 [2022-12-14 11:34:39,608 INFO L87 Difference]: Start difference. First operand 344 states and 519 transitions. Second operand has 25 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-12-14 11:34:47,569 WARN L233 SmtUtils]: Spent 6.93s on a formula simplification. DAG size of input: 495 DAG size of output: 414 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:35:20,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:35:20,362 INFO L93 Difference]: Finished difference Result 783 states and 1238 transitions. [2022-12-14 11:35:20,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 11:35:20,362 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 85 [2022-12-14 11:35:20,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:35:20,364 INFO L225 Difference]: With dead ends: 783 [2022-12-14 11:35:20,364 INFO L226 Difference]: Without dead ends: 502 [2022-12-14 11:35:20,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 104.2s TimeCoverageRelationStatistics Valid=201, Invalid=1281, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 11:35:20,366 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 255 mSDsluCounter, 2837 mSDsCounter, 0 mSdLazyCounter, 2171 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 3052 SdHoareTripleChecker+Invalid, 2200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:35:20,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 3052 Invalid, 2200 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 2171 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2022-12-14 11:35:20,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2022-12-14 11:35:20,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 406. [2022-12-14 11:35:20,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 297 states have (on average 1.5117845117845117) internal successors, (449), 302 states have internal predecessors, (449), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (87), 85 states have call predecessors, (87), 87 states have call successors, (87) [2022-12-14 11:35:20,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 624 transitions. [2022-12-14 11:35:20,651 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 624 transitions. Word has length 85 [2022-12-14 11:35:20,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:35:20,651 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 624 transitions. [2022-12-14 11:35:20,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-12-14 11:35:20,651 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 624 transitions. [2022-12-14 11:35:20,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-14 11:35:20,652 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:35:20,652 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:35:20,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 11:35:20,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:35:20,854 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:35:20,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:35:20,855 INFO L85 PathProgramCache]: Analyzing trace with hash 914895823, now seen corresponding path program 1 times [2022-12-14 11:35:20,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:35:20,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905168348] [2022-12-14 11:35:20,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:35:20,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:35:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:35:21,002 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:35:21,002 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:35:21,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905168348] [2022-12-14 11:35:21,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905168348] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:35:21,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581513024] [2022-12-14 11:35:21,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:35:21,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:35:21,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:35:21,004 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:35:21,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 11:35:21,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:35:21,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 1143 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:35:21,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:35:21,228 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:35:21,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:35:21,280 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:35:21,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581513024] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:35:21,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [770255726] [2022-12-14 11:35:21,283 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2022-12-14 11:35:21,284 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:35:21,284 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:35:21,284 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:35:21,284 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:37:15,245 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 11:37:15,554 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 438 for LOIs [2022-12-14 11:37:15,879 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 438 for LOIs [2022-12-14 11:37:16,186 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 282 for LOIs [2022-12-14 11:37:16,334 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 11:37:16,649 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:37:47,541 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 512 DAG size of output: 374 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:38:11,443 WARN L233 SmtUtils]: Spent 5.46s on a formula simplification. DAG size of input: 545 DAG size of output: 404 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:38:20,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [770255726] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:38:20,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:38:20,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-12-14 11:38:20,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539270782] [2022-12-14 11:38:20,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:38:20,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 11:38:20,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:38:20,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 11:38:20,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1017, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 11:38:20,292 INFO L87 Difference]: Start difference. First operand 406 states and 624 transitions. Second operand has 29 states, 19 states have (on average 2.263157894736842) internal successors, (43), 17 states have internal predecessors, (43), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2022-12-14 11:38:50,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:38:50,177 INFO L93 Difference]: Finished difference Result 819 states and 1291 transitions. [2022-12-14 11:38:50,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 11:38:50,177 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 19 states have (on average 2.263157894736842) internal successors, (43), 17 states have internal predecessors, (43), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) Word has length 88 [2022-12-14 11:38:50,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:38:50,180 INFO L225 Difference]: With dead ends: 819 [2022-12-14 11:38:50,181 INFO L226 Difference]: Without dead ends: 538 [2022-12-14 11:38:50,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 233 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 83.3s TimeCoverageRelationStatistics Valid=175, Invalid=1547, Unknown=0, NotChecked=0, Total=1722 [2022-12-14 11:38:50,182 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 200 mSDsluCounter, 3073 mSDsCounter, 0 mSdLazyCounter, 3150 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 3291 SdHoareTripleChecker+Invalid, 3169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 3150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:38:50,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 3291 Invalid, 3169 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 3150 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2022-12-14 11:38:50,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-12-14 11:38:50,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 446. [2022-12-14 11:38:50,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 329 states have (on average 1.5015197568389058) internal successors, (494), 336 states have internal predecessors, (494), 93 states have call successors, (93), 23 states have call predecessors, (93), 23 states have return successors, (92), 88 states have call predecessors, (92), 92 states have call successors, (92) [2022-12-14 11:38:50,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 679 transitions. [2022-12-14 11:38:50,539 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 679 transitions. Word has length 88 [2022-12-14 11:38:50,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:38:50,539 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 679 transitions. [2022-12-14 11:38:50,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 19 states have (on average 2.263157894736842) internal successors, (43), 17 states have internal predecessors, (43), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2022-12-14 11:38:50,540 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 679 transitions. [2022-12-14 11:38:50,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 11:38:50,542 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:38:50,542 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:38:50,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 11:38:50,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 11:38:50,743 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:38:50,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:38:50,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1431870999, now seen corresponding path program 1 times [2022-12-14 11:38:50,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:38:50,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694227352] [2022-12-14 11:38:50,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:38:50,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:38:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:38:50,815 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:38:50,815 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:38:50,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694227352] [2022-12-14 11:38:50,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694227352] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:38:50,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704001029] [2022-12-14 11:38:50,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:38:50,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:38:50,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:38:50,816 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:38:50,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 11:38:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:38:51,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:38:51,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:38:51,031 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:38:51,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:38:51,073 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 11:38:51,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704001029] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:38:51,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1785947395] [2022-12-14 11:38:51,077 INFO L159 IcfgInterpreter]: Started Sifa with 74 locations of interest [2022-12-14 11:38:51,077 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:38:51,078 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:38:51,078 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:38:51,078 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:39:41,861 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 11:39:42,177 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 11:39:42,481 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 472 for LOIs [2022-12-14 11:40:11,349 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 452 for LOIs [2022-12-14 11:40:11,655 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 470 for LOIs [2022-12-14 11:40:21,532 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 440 for LOIs [2022-12-14 11:40:21,802 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 452 for LOIs [2022-12-14 11:40:22,455 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 248 for LOIs [2022-12-14 11:40:22,497 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:40:56,796 WARN L233 SmtUtils]: Spent 5.83s on a formula simplification. DAG size of input: 604 DAG size of output: 360 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:41:08,989 WARN L233 SmtUtils]: Spent 11.92s on a formula simplification. DAG size of input: 606 DAG size of output: 481 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:41:19,069 WARN L233 SmtUtils]: Spent 6.53s on a formula simplification. DAG size of input: 587 DAG size of output: 451 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:41:30,732 WARN L233 SmtUtils]: Spent 6.38s on a formula simplification. DAG size of input: 589 DAG size of output: 454 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:41:37,040 WARN L233 SmtUtils]: Spent 5.92s on a formula simplification. DAG size of input: 585 DAG size of output: 450 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:42:43,283 WARN L233 SmtUtils]: Spent 5.29s on a formula simplification. DAG size of input: 581 DAG size of output: 391 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:42:46,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1785947395] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:42:46,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:42:46,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [4, 4, 4] total 59 [2022-12-14 11:42:46,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290162864] [2022-12-14 11:42:46,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:42:46,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-12-14 11:42:46,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:42:46,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-12-14 11:42:46,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=3243, Unknown=0, NotChecked=0, Total=3422 [2022-12-14 11:42:46,080 INFO L87 Difference]: Start difference. First operand 446 states and 679 transitions. Second operand has 54 states, 38 states have (on average 1.263157894736842) internal successors, (48), 36 states have internal predecessors, (48), 15 states have call successors, (17), 9 states have call predecessors, (17), 7 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2022-12-14 11:42:57,603 WARN L233 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 503 DAG size of output: 435 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:43:04,497 WARN L233 SmtUtils]: Spent 6.52s on a formula simplification. DAG size of input: 605 DAG size of output: 421 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:43:12,569 WARN L233 SmtUtils]: Spent 7.61s on a formula simplification. DAG size of input: 603 DAG size of output: 417 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:43:20,488 WARN L233 SmtUtils]: Spent 7.41s on a formula simplification. DAG size of input: 606 DAG size of output: 423 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:43:28,067 WARN L233 SmtUtils]: Spent 6.90s on a formula simplification. DAG size of input: 604 DAG size of output: 419 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:43:35,632 WARN L233 SmtUtils]: Spent 7.00s on a formula simplification. DAG size of input: 507 DAG size of output: 447 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:43:43,670 WARN L233 SmtUtils]: Spent 7.50s on a formula simplification. DAG size of input: 605 DAG size of output: 421 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:43:51,088 WARN L233 SmtUtils]: Spent 6.83s on a formula simplification. DAG size of input: 508 DAG size of output: 450 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:43:58,780 WARN L233 SmtUtils]: Spent 7.01s on a formula simplification. DAG size of input: 506 DAG size of output: 446 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:44:06,137 WARN L233 SmtUtils]: Spent 6.62s on a formula simplification. DAG size of input: 609 DAG size of output: 429 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:44:13,752 WARN L233 SmtUtils]: Spent 6.96s on a formula simplification. DAG size of input: 610 DAG size of output: 425 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:44:22,132 WARN L233 SmtUtils]: Spent 7.52s on a formula simplification. DAG size of input: 613 DAG size of output: 431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:44:33,253 WARN L233 SmtUtils]: Spent 5.84s on a formula simplification. DAG size of input: 615 DAG size of output: 449 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:44:57,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:44:57,060 INFO L93 Difference]: Finished difference Result 879 states and 1370 transitions. [2022-12-14 11:44:57,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-12-14 11:44:57,061 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 38 states have (on average 1.263157894736842) internal successors, (48), 36 states have internal predecessors, (48), 15 states have call successors, (17), 9 states have call predecessors, (17), 7 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) Word has length 87 [2022-12-14 11:44:57,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:44:57,063 INFO L225 Difference]: With dead ends: 879 [2022-12-14 11:44:57,063 INFO L226 Difference]: Without dead ends: 598 [2022-12-14 11:44:57,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 205 SyntacticMatches, 1 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1336 ImplicationChecksByTransitivity, 252.6s TimeCoverageRelationStatistics Valid=497, Invalid=5823, Unknown=0, NotChecked=0, Total=6320 [2022-12-14 11:44:57,065 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 234 mSDsluCounter, 4954 mSDsCounter, 0 mSdLazyCounter, 6657 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 5165 SdHoareTripleChecker+Invalid, 6673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 6657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:44:57,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 5165 Invalid, 6673 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [16 Valid, 6657 Invalid, 0 Unknown, 0 Unchecked, 20.9s Time] [2022-12-14 11:44:57,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-12-14 11:44:57,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 509. [2022-12-14 11:44:57,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 375 states have (on average 1.48) internal successors, (555), 383 states have internal predecessors, (555), 105 states have call successors, (105), 29 states have call predecessors, (105), 28 states have return successors, (105), 98 states have call predecessors, (105), 104 states have call successors, (105) [2022-12-14 11:44:57,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 765 transitions. [2022-12-14 11:44:57,520 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 765 transitions. Word has length 87 [2022-12-14 11:44:57,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:44:57,520 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 765 transitions. [2022-12-14 11:44:57,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 38 states have (on average 1.263157894736842) internal successors, (48), 36 states have internal predecessors, (48), 15 states have call successors, (17), 9 states have call predecessors, (17), 7 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2022-12-14 11:44:57,520 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 765 transitions. [2022-12-14 11:44:57,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-12-14 11:44:57,521 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:44:57,521 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-12-14 11:44:57,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 11:44:57,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:44:57,723 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:44:57,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:44:57,724 INFO L85 PathProgramCache]: Analyzing trace with hash 2096608558, now seen corresponding path program 1 times [2022-12-14 11:44:57,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:44:57,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990944956] [2022-12-14 11:44:57,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:44:57,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:44:57,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:44:57,824 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 11:44:57,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:44:57,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990944956] [2022-12-14 11:44:57,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990944956] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:44:57,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574238425] [2022-12-14 11:44:57,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:44:57,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:44:57,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:44:57,826 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:44:57,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92970d-44c6-4fb5-8e40-a594f59c6736/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 11:44:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:44:58,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 1051 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 11:44:58,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:44:58,064 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 11:44:58,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:44:58,119 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 11:44:58,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574238425] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:44:58,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1110225652] [2022-12-14 11:44:58,122 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2022-12-14 11:44:58,123 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:44:58,123 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:44:58,123 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:44:58,123 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs