./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/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_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/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_1339fa4a-46c5-451e-8f6d-f937ff8f2754/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 00530584ceb95509e59a4223c6066e974815f5b40475a70fc9a47cceec3e0b2f --- 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 07:31:21,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:31:21,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:31:21,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:31:21,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:31:21,553 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:31:21,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:31:21,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:31:21,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:31:21,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:31:21,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:31:21,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:31:21,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:31:21,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:31:21,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:31:21,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:31:21,565 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:31:21,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:31:21,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:31:21,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:31:21,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:31:21,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:31:21,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:31:21,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:31:21,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:31:21,578 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:31:21,578 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:31:21,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:31:21,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:31:21,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:31:21,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:31:21,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:31:21,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:31:21,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:31:21,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:31:21,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:31:21,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:31:21,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:31:21,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:31:21,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:31:21,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:31:21,587 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 07:31:21,608 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:31:21,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:31:21,609 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:31:21,609 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:31:21,610 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:31:21,610 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:31:21,610 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:31:21,610 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:31:21,611 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:31:21,611 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:31:21,611 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:31:21,611 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:31:21,611 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:31:21,611 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:31:21,612 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:31:21,612 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:31:21,612 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:31:21,612 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:31:21,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:31:21,613 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:31:21,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:31:21,613 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:31:21,613 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:31:21,613 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:31:21,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:31:21,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:31:21,614 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:31:21,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:31:21,614 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:31:21,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:31:21,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:31:21,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:31:21,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:31:21,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:31:21,615 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:31:21,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:31:21,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:31:21,615 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:31:21,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:31:21,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:31:21,616 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:31:21,616 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_1339fa4a-46c5-451e-8f6d-f937ff8f2754/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00530584ceb95509e59a4223c6066e974815f5b40475a70fc9a47cceec3e0b2f [2022-12-14 07:31:21,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:31:21,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:31:21,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:31:21,827 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:31:21,828 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:31:21,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec11_product27.cil.c [2022-12-14 07:31:24,353 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:31:24,596 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:31:24,597 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/sv-benchmarks/c/product-lines/email_spec11_product27.cil.c [2022-12-14 07:31:24,612 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/data/2e8c5ff07/0932885e217c4749b35b674fedf1c66e/FLAG90a281e91 [2022-12-14 07:31:24,926 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/data/2e8c5ff07/0932885e217c4749b35b674fedf1c66e [2022-12-14 07:31:24,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:31:24,929 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:31:24,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:31:24,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:31:24,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:31:24,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:31:24" (1/1) ... [2022-12-14 07:31:24,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14257ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:24, skipping insertion in model container [2022-12-14 07:31:24,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:31:24" (1/1) ... [2022-12-14 07:31:24,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:31:24,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:31:25,215 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:31:25,220 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:31:25,221 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:31:25,223 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:31:25,234 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:31:25,237 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:31:25,240 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_1339fa4a-46c5-451e-8f6d-f937ff8f2754/sv-benchmarks/c/product-lines/email_spec11_product27.cil.c[34014,34027] [2022-12-14 07:31:25,290 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:31:25,291 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:31:25,293 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:31:25,332 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:31:25,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:31:25,356 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:31:25,386 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:31:25,387 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:31:25,388 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:31:25,389 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:31:25,392 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:31:25,393 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:31:25,395 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_1339fa4a-46c5-451e-8f6d-f937ff8f2754/sv-benchmarks/c/product-lines/email_spec11_product27.cil.c[34014,34027] [2022-12-14 07:31:25,400 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:31:25,400 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:31:25,402 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:31:25,418 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:31:25,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:31:25,444 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:31:25,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:25 WrapperNode [2022-12-14 07:31:25,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:31:25,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:31:25,445 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:31:25,445 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:31:25,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:25" (1/1) ... [2022-12-14 07:31:25,467 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:25" (1/1) ... [2022-12-14 07:31:25,503 INFO L138 Inliner]: procedures = 133, calls = 227, calls flagged for inlining = 65, calls inlined = 62, statements flattened = 1125 [2022-12-14 07:31:25,503 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:31:25,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:31:25,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:31:25,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:31:25,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:25" (1/1) ... [2022-12-14 07:31:25,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:25" (1/1) ... [2022-12-14 07:31:25,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:25" (1/1) ... [2022-12-14 07:31:25,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:25" (1/1) ... [2022-12-14 07:31:25,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:25" (1/1) ... [2022-12-14 07:31:25,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:25" (1/1) ... [2022-12-14 07:31:25,539 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:25" (1/1) ... [2022-12-14 07:31:25,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:25" (1/1) ... [2022-12-14 07:31:25,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:31:25,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:31:25,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:31:25,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:31:25,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:25" (1/1) ... [2022-12-14 07:31:25,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:31:25,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:31:25,573 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:31:25,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:31:25,604 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 07:31:25,604 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 07:31:25,604 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 07:31:25,604 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 07:31:25,604 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 07:31:25,604 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 07:31:25,604 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-14 07:31:25,605 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-14 07:31:25,605 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 07:31:25,605 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 07:31:25,605 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 07:31:25,605 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 07:31:25,605 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 07:31:25,605 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 07:31:25,605 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 07:31:25,606 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 07:31:25,606 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 07:31:25,606 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 07:31:25,606 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 07:31:25,606 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 07:31:25,606 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 07:31:25,606 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-14 07:31:25,606 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-14 07:31:25,606 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 07:31:25,606 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 07:31:25,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:31:25,607 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 07:31:25,607 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 07:31:25,607 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 07:31:25,607 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 07:31:25,607 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 07:31:25,607 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 07:31:25,607 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 07:31:25,608 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 07:31:25,608 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 07:31:25,608 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 07:31:25,608 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 07:31:25,608 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 07:31:25,608 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 07:31:25,608 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 07:31:25,608 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 07:31:25,609 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 07:31:25,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:31:25,609 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 07:31:25,609 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 07:31:25,609 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 07:31:25,609 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 07:31:25,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:31:25,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:31:25,802 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:31:25,804 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:31:26,433 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:31:26,806 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:31:26,806 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 07:31:26,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:31:26 BoogieIcfgContainer [2022-12-14 07:31:26,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:31:26,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:31:26,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:31:26,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:31:26,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:31:24" (1/3) ... [2022-12-14 07:31:26,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cdcfa6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:31:26, skipping insertion in model container [2022-12-14 07:31:26,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:25" (2/3) ... [2022-12-14 07:31:26,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cdcfa6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:31:26, skipping insertion in model container [2022-12-14 07:31:26,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:31:26" (3/3) ... [2022-12-14 07:31:26,817 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product27.cil.c [2022-12-14 07:31:26,832 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:31:26,832 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 07:31:26,870 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:31:26,875 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;@2fb55077, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:31:26,875 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 07:31:26,879 INFO L276 IsEmpty]: Start isEmpty. Operand has 191 states, 109 states have (on average 1.311926605504587) internal successors, (143), 112 states have internal predecessors, (143), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2022-12-14 07:31:26,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 07:31:26,888 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:31:26,888 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] [2022-12-14 07:31:26,889 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:31:26,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:31:26,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1028974887, now seen corresponding path program 1 times [2022-12-14 07:31:26,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:31:26,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138222267] [2022-12-14 07:31:26,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:31:26,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:31:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:31:27,135 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 07:31:27,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:31:27,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138222267] [2022-12-14 07:31:27,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138222267] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:31:27,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:31:27,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:31:27,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17659220] [2022-12-14 07:31:27,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:31:27,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 07:31:27,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:31:27,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 07:31:27,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 07:31:27,165 INFO L87 Difference]: Start difference. First operand has 191 states, 109 states have (on average 1.311926605504587) internal successors, (143), 112 states have internal predecessors, (143), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 07:31:27,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:31:27,299 INFO L93 Difference]: Finished difference Result 290 states and 389 transitions. [2022-12-14 07:31:27,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 07:31:27,301 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 67 [2022-12-14 07:31:27,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:31:27,309 INFO L225 Difference]: With dead ends: 290 [2022-12-14 07:31:27,309 INFO L226 Difference]: Without dead ends: 188 [2022-12-14 07:31:27,312 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 07:31:27,314 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:31:27,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:31:27,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-12-14 07:31:27,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2022-12-14 07:31:27,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 107 states have (on average 1.280373831775701) internal successors, (137), 109 states have internal predecessors, (137), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-12-14 07:31:27,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 252 transitions. [2022-12-14 07:31:27,354 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 252 transitions. Word has length 67 [2022-12-14 07:31:27,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:31:27,355 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 252 transitions. [2022-12-14 07:31:27,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 07:31:27,355 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 252 transitions. [2022-12-14 07:31:27,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-14 07:31:27,358 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:31:27,358 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] [2022-12-14 07:31:27,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:31:27,358 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:31:27,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:31:27,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1141030955, now seen corresponding path program 1 times [2022-12-14 07:31:27,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:31:27,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365154891] [2022-12-14 07:31:27,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:31:27,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:31:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:31:27,516 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 07:31:27,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:31:27,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365154891] [2022-12-14 07:31:27,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365154891] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:31:27,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:31:27,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:31:27,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598182539] [2022-12-14 07:31:27,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:31:27,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:31:27,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:31:27,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:31:27,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:31:27,519 INFO L87 Difference]: Start difference. First operand 188 states and 252 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 07:31:27,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:31:27,647 INFO L93 Difference]: Finished difference Result 286 states and 374 transitions. [2022-12-14 07:31:27,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:31:27,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 68 [2022-12-14 07:31:27,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:31:27,650 INFO L225 Difference]: With dead ends: 286 [2022-12-14 07:31:27,650 INFO L226 Difference]: Without dead ends: 190 [2022-12-14 07:31:27,652 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 07:31:27,653 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:31:27,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 425 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:31:27,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-12-14 07:31:27,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2022-12-14 07:31:27,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 109 states have (on average 1.275229357798165) internal successors, (139), 111 states have internal predecessors, (139), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-12-14 07:31:27,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 254 transitions. [2022-12-14 07:31:27,676 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 254 transitions. Word has length 68 [2022-12-14 07:31:27,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:31:27,676 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 254 transitions. [2022-12-14 07:31:27,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 07:31:27,677 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 254 transitions. [2022-12-14 07:31:27,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 07:31:27,680 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:31:27,680 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] [2022-12-14 07:31:27,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:31:27,681 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:31:27,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:31:27,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1147827867, now seen corresponding path program 1 times [2022-12-14 07:31:27,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:31:27,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855001352] [2022-12-14 07:31:27,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:31:27,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:31:27,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:31:27,801 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 07:31:27,801 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:31:27,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855001352] [2022-12-14 07:31:27,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855001352] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:31:27,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:31:27,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:31:27,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986841607] [2022-12-14 07:31:27,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:31:27,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:31:27,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:31:27,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:31:27,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:31:27,804 INFO L87 Difference]: Start difference. First operand 190 states and 254 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 07:31:27,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:31:27,898 INFO L93 Difference]: Finished difference Result 415 states and 575 transitions. [2022-12-14 07:31:27,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:31:27,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 73 [2022-12-14 07:31:27,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:31:27,900 INFO L225 Difference]: With dead ends: 415 [2022-12-14 07:31:27,900 INFO L226 Difference]: Without dead ends: 243 [2022-12-14 07:31:27,901 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 07:31:27,902 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 59 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:31:27,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 438 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:31:27,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-12-14 07:31:27,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 238. [2022-12-14 07:31:27,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 143 states have (on average 1.3566433566433567) internal successors, (194), 145 states have internal predecessors, (194), 72 states have call successors, (72), 22 states have call predecessors, (72), 22 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2022-12-14 07:31:27,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 337 transitions. [2022-12-14 07:31:27,917 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 337 transitions. Word has length 73 [2022-12-14 07:31:27,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:31:27,917 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 337 transitions. [2022-12-14 07:31:27,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 07:31:27,918 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 337 transitions. [2022-12-14 07:31:27,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 07:31:27,919 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:31:27,919 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] [2022-12-14 07:31:27,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 07:31:27,920 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:31:27,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:31:27,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1321714069, now seen corresponding path program 1 times [2022-12-14 07:31:27,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:31:27,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926633324] [2022-12-14 07:31:27,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:31:27,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:31:27,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:31:28,021 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 07:31:28,021 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:31:28,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926633324] [2022-12-14 07:31:28,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926633324] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:31:28,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713532187] [2022-12-14 07:31:28,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:31:28,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:31:28,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:31:28,023 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:31:28,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 07:31:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:31:28,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:31:28,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:31:28,295 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 07:31:28,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:31:28,343 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 07:31:28,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713532187] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:31:28,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [727458363] [2022-12-14 07:31:28,359 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-12-14 07:31:28,359 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:31:28,361 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:31:28,366 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:31:28,366 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:32:02,858 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 07:32:03,163 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 07:32:03,463 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:32:39,224 WARN L233 SmtUtils]: Spent 7.18s on a formula simplification. DAG size of input: 589 DAG size of output: 344 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:32:47,465 WARN L233 SmtUtils]: Spent 7.97s on a formula simplification. DAG size of input: 591 DAG size of output: 344 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:32:57,888 WARN L233 SmtUtils]: Spent 10.15s on a formula simplification. DAG size of input: 590 DAG size of output: 464 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:33:08,163 WARN L233 SmtUtils]: Spent 9.97s on a formula simplification. DAG size of input: 588 DAG size of output: 462 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:33:11,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [727458363] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:33:11,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:33:11,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 07:33:11,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775946214] [2022-12-14 07:33:11,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:33:11,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 07:33:11,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:33:11,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 07:33:11,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-12-14 07:33:11,257 INFO L87 Difference]: Start difference. First operand 238 states and 337 transitions. Second operand has 21 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2022-12-14 07:33:27,099 WARN L233 SmtUtils]: Spent 6.63s on a formula simplification. DAG size of input: 559 DAG size of output: 415 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:33:31,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:33:31,728 INFO L93 Difference]: Finished difference Result 527 states and 781 transitions. [2022-12-14 07:33:31,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 07:33:31,729 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 74 [2022-12-14 07:33:31,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:33:31,731 INFO L225 Difference]: With dead ends: 527 [2022-12-14 07:33:31,731 INFO L226 Difference]: Without dead ends: 307 [2022-12-14 07:33:31,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 82.6s TimeCoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-12-14 07:33:31,732 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 150 mSDsluCounter, 2744 mSDsCounter, 0 mSdLazyCounter, 1693 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 2957 SdHoareTripleChecker+Invalid, 1712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:33:31,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 2957 Invalid, 1712 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 1693 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-12-14 07:33:31,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-12-14 07:33:31,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 266. [2022-12-14 07:33:31,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 170 states have (on average 1.3705882352941177) internal successors, (233), 172 states have internal predecessors, (233), 72 states have call successors, (72), 23 states have call predecessors, (72), 23 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2022-12-14 07:33:31,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 376 transitions. [2022-12-14 07:33:31,844 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 376 transitions. Word has length 74 [2022-12-14 07:33:31,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:33:31,844 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 376 transitions. [2022-12-14 07:33:31,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2022-12-14 07:33:31,844 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 376 transitions. [2022-12-14 07:33:31,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-14 07:33:31,846 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:33:31,846 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] [2022-12-14 07:33:31,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 07:33:32,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:33:32,048 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:33:32,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:33:32,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1346838399, now seen corresponding path program 1 times [2022-12-14 07:33:32,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:33:32,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645182120] [2022-12-14 07:33:32,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:33:32,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:33:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:33:32,192 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 07:33:32,193 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:33:32,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645182120] [2022-12-14 07:33:32,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645182120] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:33:32,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658217370] [2022-12-14 07:33:32,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:33:32,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:33:32,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:33:32,195 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:33:32,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 07:33:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:33:32,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 1112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:33:32,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:33:32,416 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 07:33:32,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:33:32,463 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 07:33:32,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658217370] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:33:32,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1806165695] [2022-12-14 07:33:32,468 INFO L159 IcfgInterpreter]: Started Sifa with 65 locations of interest [2022-12-14 07:33:32,468 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:33:32,468 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:33:32,468 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:33:32,468 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:34:16,220 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 07:34:16,528 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 450 for LOIs [2022-12-14 07:34:16,843 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:35:01,843 WARN L233 SmtUtils]: Spent 11.13s on a formula simplification. DAG size of input: 579 DAG size of output: 448 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:35:21,126 WARN L233 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 580 DAG size of output: 438 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:35:21,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1806165695] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:35:21,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:35:21,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 07:35:21,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163930955] [2022-12-14 07:35:21,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:35:21,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 07:35:21,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:35:21,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 07:35:21,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=761, Unknown=0, NotChecked=0, Total=870 [2022-12-14 07:35:21,275 INFO L87 Difference]: Start difference. First operand 266 states and 376 transitions. Second operand has 25 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-12-14 07:35:30,406 WARN L233 SmtUtils]: Spent 8.11s on a formula simplification. DAG size of input: 541 DAG size of output: 414 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:35:51,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:35:51,316 INFO L93 Difference]: Finished difference Result 570 states and 839 transitions. [2022-12-14 07:35:51,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 07:35:51,317 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 80 [2022-12-14 07:35:51,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:35:51,319 INFO L225 Difference]: With dead ends: 570 [2022-12-14 07:35:51,319 INFO L226 Difference]: Without dead ends: 350 [2022-12-14 07:35:51,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 212 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 88.1s TimeCoverageRelationStatistics Valid=181, Invalid=1225, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 07:35:51,320 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 161 mSDsluCounter, 2878 mSDsCounter, 0 mSdLazyCounter, 1986 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 2001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:35:51,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 3088 Invalid, 2001 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 1986 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-12-14 07:35:51,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-12-14 07:35:51,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 280. [2022-12-14 07:35:51,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 182 states have (on average 1.3736263736263736) internal successors, (250), 184 states have internal predecessors, (250), 73 states have call successors, (73), 24 states have call predecessors, (73), 24 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2022-12-14 07:35:51,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 395 transitions. [2022-12-14 07:35:51,453 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 395 transitions. Word has length 80 [2022-12-14 07:35:51,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:35:51,454 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 395 transitions. [2022-12-14 07:35:51,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-12-14 07:35:51,454 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 395 transitions. [2022-12-14 07:35:51,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 07:35:51,455 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:35:51,455 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] [2022-12-14 07:35:51,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 07:35:51,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:35:51,657 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:35:51,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:35:51,659 INFO L85 PathProgramCache]: Analyzing trace with hash -2132898683, now seen corresponding path program 1 times [2022-12-14 07:35:51,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:35:51,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040678703] [2022-12-14 07:35:51,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:35:51,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:35:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:35:51,863 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 07:35:51,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:35:51,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040678703] [2022-12-14 07:35:51,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040678703] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:35:51,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563881618] [2022-12-14 07:35:51,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:35:51,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:35:51,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:35:51,865 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:35:51,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 07:35:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:35:52,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 1218 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:35:52,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:35:52,088 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 07:35:52,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:35:52,132 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 07:35:52,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563881618] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:35:52,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [77694205] [2022-12-14 07:35:52,136 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2022-12-14 07:35:52,136 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:35:52,136 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:35:52,137 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:35:52,137 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:36:29,881 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 07:36:30,182 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 234 for LOIs [2022-12-14 07:36:30,247 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 452 for LOIs [2022-12-14 07:36:30,668 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 249 for LOIs [2022-12-14 07:36:30,750 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 07:36:31,047 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:37:12,962 WARN L233 SmtUtils]: Spent 10.58s on a formula simplification. DAG size of input: 619 DAG size of output: 502 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:37:27,285 WARN L233 SmtUtils]: Spent 6.46s on a formula simplification. DAG size of input: 560 DAG size of output: 415 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:37:34,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [77694205] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:37:34,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:37:34,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 07:37:34,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529183407] [2022-12-14 07:37:34,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:37:34,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 07:37:34,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:37:34,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 07:37:34,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 07:37:34,396 INFO L87 Difference]: Start difference. First operand 280 states and 395 transitions. Second operand has 30 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-12-14 07:37:40,944 WARN L233 SmtUtils]: Spent 5.25s on a formula simplification. DAG size of input: 594 DAG size of output: 421 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:37:52,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:37:52,000 INFO L93 Difference]: Finished difference Result 592 states and 871 transitions. [2022-12-14 07:37:52,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 07:37:52,001 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 83 [2022-12-14 07:37:52,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:37:52,002 INFO L225 Difference]: With dead ends: 592 [2022-12-14 07:37:52,002 INFO L226 Difference]: Without dead ends: 372 [2022-12-14 07:37:52,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 216 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 70.8s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 07:37:52,003 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 123 mSDsluCounter, 3338 mSDsCounter, 0 mSdLazyCounter, 3153 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 3549 SdHoareTripleChecker+Invalid, 3163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:37:52,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 3549 Invalid, 3163 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3153 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2022-12-14 07:37:52,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2022-12-14 07:37:52,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 316. [2022-12-14 07:37:52,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 212 states have (on average 1.3773584905660377) internal successors, (292), 214 states have internal predecessors, (292), 76 states have call successors, (76), 27 states have call predecessors, (76), 27 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-12-14 07:37:52,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 443 transitions. [2022-12-14 07:37:52,192 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 443 transitions. Word has length 83 [2022-12-14 07:37:52,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:37:52,192 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 443 transitions. [2022-12-14 07:37:52,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-12-14 07:37:52,192 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 443 transitions. [2022-12-14 07:37:52,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-12-14 07:37:52,193 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:37:52,193 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] [2022-12-14 07:37:52,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 07:37:52,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 07:37:52,394 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:37:52,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:37:52,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1002692862, now seen corresponding path program 1 times [2022-12-14 07:37:52,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:37:52,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710050632] [2022-12-14 07:37:52,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:37:52,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:37:52,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:37:52,476 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 07:37:52,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:37:52,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710050632] [2022-12-14 07:37:52,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710050632] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:37:52,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407447853] [2022-12-14 07:37:52,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:37:52,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:37:52,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:37:52,478 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:37:52,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 07:37:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:37:52,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 1123 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:37:52,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:37:52,735 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 07:37:52,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:37:52,778 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 07:37:52,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407447853] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:37:52,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [68073530] [2022-12-14 07:37:52,782 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2022-12-14 07:37:52,782 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:37:52,782 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:37:52,782 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:37:52,782 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:38:43,020 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 07:38:43,324 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 07:38:43,630 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 259 for LOIs [2022-12-14 07:38:45,303 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-12-14 07:38:45,343 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 261 for LOIs [2022-12-14 07:38:48,685 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 269 for LOIs [2022-12-14 07:38:51,649 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 251 for LOIs [2022-12-14 07:38:51,684 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 251 for LOIs [2022-12-14 07:38:51,727 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 482 for LOIs [2022-12-14 07:38:55,210 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 242 for LOIs [2022-12-14 07:38:55,255 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:39:35,079 WARN L233 SmtUtils]: Spent 5.42s on a formula simplification. DAG size of input: 579 DAG size of output: 444 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:40:05,105 WARN L233 SmtUtils]: Spent 7.37s on a formula simplification. DAG size of input: 477 DAG size of output: 368 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:40:35,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [68073530] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:40:35,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:40:35,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [4, 4, 4] total 62 [2022-12-14 07:40:35,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911454800] [2022-12-14 07:40:35,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:40:35,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-12-14 07:40:35,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:40:35,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-12-14 07:40:35,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=3603, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 07:40:35,733 INFO L87 Difference]: Start difference. First operand 316 states and 443 transitions. Second operand has 57 states, 40 states have (on average 1.15) internal successors, (46), 37 states have internal predecessors, (46), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 07:41:42,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:41:42,028 INFO L93 Difference]: Finished difference Result 670 states and 981 transitions. [2022-12-14 07:41:42,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-12-14 07:41:42,029 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 40 states have (on average 1.15) internal successors, (46), 37 states have internal predecessors, (46), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 82 [2022-12-14 07:41:42,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:41:42,031 INFO L225 Difference]: With dead ends: 670 [2022-12-14 07:41:42,031 INFO L226 Difference]: Without dead ends: 450 [2022-12-14 07:41:42,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 187 SyntacticMatches, 1 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1669 ImplicationChecksByTransitivity, 145.7s TimeCoverageRelationStatistics Valid=598, Invalid=6884, Unknown=0, NotChecked=0, Total=7482 [2022-12-14 07:41:42,033 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 369 mSDsluCounter, 5438 mSDsCounter, 0 mSdLazyCounter, 7648 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 5653 SdHoareTripleChecker+Invalid, 7676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 7648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:41:42,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 5653 Invalid, 7676 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [28 Valid, 7648 Invalid, 0 Unknown, 0 Unchecked, 20.4s Time] [2022-12-14 07:41:42,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-12-14 07:41:42,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 388. [2022-12-14 07:41:42,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 267 states have (on average 1.3745318352059925) internal successors, (367), 270 states have internal predecessors, (367), 87 states have call successors, (87), 35 states have call predecessors, (87), 33 states have return successors, (87), 82 states have call predecessors, (87), 86 states have call successors, (87) [2022-12-14 07:41:42,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 541 transitions. [2022-12-14 07:41:42,323 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 541 transitions. Word has length 82 [2022-12-14 07:41:42,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:41:42,323 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 541 transitions. [2022-12-14 07:41:42,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 40 states have (on average 1.15) internal successors, (46), 37 states have internal predecessors, (46), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 07:41:42,324 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 541 transitions. [2022-12-14 07:41:42,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 07:41:42,326 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:41:42,326 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] [2022-12-14 07:41:42,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 07:41:42,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:41:42,527 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:41:42,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:41:42,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1581876896, now seen corresponding path program 1 times [2022-12-14 07:41:42,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:41:42,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331192001] [2022-12-14 07:41:42,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:41:42,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:41:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:41:42,696 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-14 07:41:42,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:41:42,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331192001] [2022-12-14 07:41:42,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331192001] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:41:42,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128387583] [2022-12-14 07:41:42,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:41:42,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:41:42,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:41:42,697 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:41:42,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 07:41:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:41:42,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 1135 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 07:41:42,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:41:42,936 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 07:41:42,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:41:42,983 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 07:41:42,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128387583] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:41:42,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1789374393] [2022-12-14 07:41:42,986 INFO L159 IcfgInterpreter]: Started Sifa with 65 locations of interest [2022-12-14 07:41:42,986 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:41:42,986 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:41:42,986 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:41:42,987 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:42:46,978 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 07:42:47,289 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 439 for LOIs [2022-12-14 07:42:47,580 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:43:42,360 WARN L233 SmtUtils]: Spent 5.44s on a formula simplification. DAG size of input: 597 DAG size of output: 340 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:43:48,725 WARN L233 SmtUtils]: Spent 5.98s on a formula simplification. DAG size of input: 599 DAG size of output: 342 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:43:49,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1789374393] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:43:49,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:43:49,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [6, 5, 5] total 32 [2022-12-14 07:43:49,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171211924] [2022-12-14 07:43:49,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:43:49,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 07:43:49,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:43:49,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 07:43:49,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=885, Unknown=0, NotChecked=0, Total=992 [2022-12-14 07:43:49,898 INFO L87 Difference]: Start difference. First operand 388 states and 541 transitions. Second operand has 24 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 17 states have internal predecessors, (42), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-12-14 07:44:08,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:44:08,641 INFO L93 Difference]: Finished difference Result 711 states and 1031 transitions. [2022-12-14 07:44:08,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-14 07:44:08,642 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 17 states have internal predecessors, (42), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 85 [2022-12-14 07:44:08,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:44:08,643 INFO L225 Difference]: With dead ends: 711 [2022-12-14 07:44:08,643 INFO L226 Difference]: Without dead ends: 388 [2022-12-14 07:44:08,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 227 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 74.6s TimeCoverageRelationStatistics Valid=150, Invalid=1182, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 07:44:08,644 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 114 mSDsluCounter, 3055 mSDsCounter, 0 mSdLazyCounter, 2000 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 3265 SdHoareTripleChecker+Invalid, 2022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:44:08,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 3265 Invalid, 2022 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 2000 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-12-14 07:44:08,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-12-14 07:44:08,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 315. [2022-12-14 07:44:08,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 211 states have (on average 1.3696682464454977) internal successors, (289), 213 states have internal predecessors, (289), 76 states have call successors, (76), 27 states have call predecessors, (76), 27 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-12-14 07:44:08,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 440 transitions. [2022-12-14 07:44:08,854 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 440 transitions. Word has length 85 [2022-12-14 07:44:08,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:44:08,854 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 440 transitions. [2022-12-14 07:44:08,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 17 states have internal predecessors, (42), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-12-14 07:44:08,854 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 440 transitions. [2022-12-14 07:44:08,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-14 07:44:08,855 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:44:08,855 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-12-14 07:44:08,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 07:44:09,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:44:09,057 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:44:09,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:44:09,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1208440139, now seen corresponding path program 1 times [2022-12-14 07:44:09,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:44:09,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518360961] [2022-12-14 07:44:09,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:44:09,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:44:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:44:09,233 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-14 07:44:09,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:44:09,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518360961] [2022-12-14 07:44:09,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518360961] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:44:09,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456034648] [2022-12-14 07:44:09,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:44:09,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:44:09,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:44:09,235 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:44:09,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1339fa4a-46c5-451e-8f6d-f937ff8f2754/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 07:44:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:44:09,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 07:44:09,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:44:09,530 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:44:09,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:44:09,586 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:44:09,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456034648] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:44:09,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1711352388] [2022-12-14 07:44:09,589 INFO L159 IcfgInterpreter]: Started Sifa with 72 locations of interest [2022-12-14 07:44:09,589 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:44:09,589 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:44:09,589 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:44:09,589 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:45:24,098 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 07:45:24,392 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 234 for LOIs [2022-12-14 07:45:24,455 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 257 for LOIs [2022-12-14 07:45:24,574 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 401 for LOIs [2022-12-14 07:45:24,848 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 07:45:25,152 INFO L180 IcfgInterpreter]: Interpretation finished