./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product37.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_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/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_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product37.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/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_71af5153-b659-42f5-9681-ea52c9e71126/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 9dc54d5213c4407313cf4404e06f4e3ced3af047edaa52f6d33441570abdeda7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 09:34:23,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:34:23,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:34:23,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:34:23,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:34:23,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:34:23,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:34:23,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:34:23,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:34:23,081 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:34:23,082 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:34:23,083 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:34:23,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:34:23,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:34:23,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:34:23,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:34:23,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:34:23,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:34:23,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:34:23,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:34:23,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:34:23,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:34:23,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:34:23,097 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:34:23,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:34:23,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:34:23,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:34:23,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:34:23,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:34:23,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:34:23,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:34:23,104 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:34:23,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:34:23,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:34:23,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:34:23,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:34:23,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:34:23,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:34:23,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:34:23,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:34:23,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:34:23,111 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 09:34:23,133 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:34:23,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:34:23,134 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:34:23,134 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:34:23,135 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:34:23,135 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:34:23,135 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:34:23,135 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:34:23,135 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:34:23,136 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:34:23,136 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:34:23,136 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:34:23,136 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:34:23,136 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:34:23,136 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:34:23,137 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:34:23,137 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:34:23,137 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:34:23,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:34:23,138 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:34:23,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:34:23,138 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:34:23,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:34:23,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:34:23,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:34:23,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:34:23,139 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:34:23,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:34:23,139 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:34:23,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:34:23,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:34:23,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:34:23,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:34:23,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:34:23,140 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:34:23,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:34:23,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:34:23,140 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:34:23,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:34:23,140 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:34:23,140 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:34:23,141 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_71af5153-b659-42f5-9681-ea52c9e71126/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9dc54d5213c4407313cf4404e06f4e3ced3af047edaa52f6d33441570abdeda7 [2022-12-14 09:34:23,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:34:23,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:34:23,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:34:23,351 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:34:23,351 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:34:23,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec0_product37.cil.c [2022-12-14 09:34:26,007 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:34:26,207 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:34:26,207 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/sv-benchmarks/c/product-lines/email_spec0_product37.cil.c [2022-12-14 09:34:26,218 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/data/89a19c823/5f18721643fb40b5b9fee12df2f7ae7d/FLAG91e959526 [2022-12-14 09:34:26,229 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/data/89a19c823/5f18721643fb40b5b9fee12df2f7ae7d [2022-12-14 09:34:26,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:34:26,232 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:34:26,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:34:26,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:34:26,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:34:26,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:34:26" (1/1) ... [2022-12-14 09:34:26,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16ba18fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:26, skipping insertion in model container [2022-12-14 09:34:26,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:34:26" (1/1) ... [2022-12-14 09:34:26,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:34:26,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:34:26,388 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_71af5153-b659-42f5-9681-ea52c9e71126/sv-benchmarks/c/product-lines/email_spec0_product37.cil.c[1542,1555] [2022-12-14 09:34:26,470 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:34:26,475 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:34:26,482 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:34:26,592 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:34:26,594 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:34:26,605 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:34:26,607 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:34:26,687 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:34:26,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:34:26,705 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:34:26,716 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_71af5153-b659-42f5-9681-ea52c9e71126/sv-benchmarks/c/product-lines/email_spec0_product37.cil.c[1542,1555] [2022-12-14 09:34:26,720 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:34:26,721 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:34:26,724 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:34:26,756 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:34:26,758 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:34:26,762 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:34:26,763 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:34:26,790 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:34:26,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:34:26,830 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:34:26,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:26 WrapperNode [2022-12-14 09:34:26,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:34:26,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:34:26,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:34:26,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:34:26,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:26" (1/1) ... [2022-12-14 09:34:26,858 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:26" (1/1) ... [2022-12-14 09:34:26,896 INFO L138 Inliner]: procedures = 124, calls = 186, calls flagged for inlining = 51, calls inlined = 46, statements flattened = 829 [2022-12-14 09:34:26,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:34:26,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:34:26,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:34:26,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:34:26,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:26" (1/1) ... [2022-12-14 09:34:26,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:26" (1/1) ... [2022-12-14 09:34:26,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:26" (1/1) ... [2022-12-14 09:34:26,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:26" (1/1) ... [2022-12-14 09:34:26,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:26" (1/1) ... [2022-12-14 09:34:26,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:26" (1/1) ... [2022-12-14 09:34:26,934 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:26" (1/1) ... [2022-12-14 09:34:26,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:26" (1/1) ... [2022-12-14 09:34:26,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:34:26,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:34:26,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:34:26,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:34:26,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:26" (1/1) ... [2022-12-14 09:34:26,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:34:26,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:34:26,972 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:34:26,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:34:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 09:34:27,010 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 09:34:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 09:34:27,010 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 09:34:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 09:34:27,010 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 09:34:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 09:34:27,010 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 09:34:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 09:34:27,011 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 09:34:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 09:34:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 09:34:27,011 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 09:34:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-14 09:34:27,011 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-14 09:34:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 09:34:27,011 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 09:34:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:34:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 09:34:27,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 09:34:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 09:34:27,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 09:34:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 09:34:27,012 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 09:34:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 09:34:27,012 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 09:34:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 09:34:27,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 09:34:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 09:34:27,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 09:34:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:34:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 09:34:27,013 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 09:34:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:34:27,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:34:27,126 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:34:27,128 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:34:27,635 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:34:27,893 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:34:27,893 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 09:34:27,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:34:27 BoogieIcfgContainer [2022-12-14 09:34:27,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:34:27,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:34:27,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:34:27,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:34:27,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:34:26" (1/3) ... [2022-12-14 09:34:27,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5fbd31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:34:27, skipping insertion in model container [2022-12-14 09:34:27,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:26" (2/3) ... [2022-12-14 09:34:27,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5fbd31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:34:27, skipping insertion in model container [2022-12-14 09:34:27,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:34:27" (3/3) ... [2022-12-14 09:34:27,901 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product37.cil.c [2022-12-14 09:34:27,914 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:34:27,915 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 09:34:27,963 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:34:27,968 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;@6e5bdbba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:34:27,968 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 09:34:27,972 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 84 states have (on average 1.3571428571428572) internal successors, (114), 86 states have internal predecessors, (114), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2022-12-14 09:34:27,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-12-14 09:34:27,984 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:34:27,984 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] [2022-12-14 09:34:27,985 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:34:27,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:34:27,990 INFO L85 PathProgramCache]: Analyzing trace with hash 2052570211, now seen corresponding path program 1 times [2022-12-14 09:34:27,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:34:28,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86310327] [2022-12-14 09:34:28,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:34:28,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:34:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:34:28,261 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 09:34:28,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:34:28,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86310327] [2022-12-14 09:34:28,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86310327] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:34:28,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:34:28,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:34:28,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586429994] [2022-12-14 09:34:28,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:34:28,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:34:28,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:34:28,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:34:28,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:34:28,300 INFO L87 Difference]: Start difference. First operand has 141 states, 84 states have (on average 1.3571428571428572) internal successors, (114), 86 states have internal predecessors, (114), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 09:34:28,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:34:28,392 INFO L93 Difference]: Finished difference Result 199 states and 266 transitions. [2022-12-14 09:34:28,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:34:28,394 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 60 [2022-12-14 09:34:28,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:34:28,404 INFO L225 Difference]: With dead ends: 199 [2022-12-14 09:34:28,404 INFO L226 Difference]: Without dead ends: 138 [2022-12-14 09:34:28,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:34:28,410 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:34:28,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:34:28,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-12-14 09:34:28,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2022-12-14 09:34:28,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 82 states have (on average 1.3170731707317074) internal successors, (108), 83 states have internal predecessors, (108), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-12-14 09:34:28,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 187 transitions. [2022-12-14 09:34:28,459 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 187 transitions. Word has length 60 [2022-12-14 09:34:28,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:34:28,460 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 187 transitions. [2022-12-14 09:34:28,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 09:34:28,461 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 187 transitions. [2022-12-14 09:34:28,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 09:34:28,464 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:34:28,464 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] [2022-12-14 09:34:28,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:34:28,465 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:34:28,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:34:28,465 INFO L85 PathProgramCache]: Analyzing trace with hash -268381254, now seen corresponding path program 1 times [2022-12-14 09:34:28,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:34:28,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074027704] [2022-12-14 09:34:28,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:34:28,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:34:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:34:28,624 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 09:34:28,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:34:28,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074027704] [2022-12-14 09:34:28,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074027704] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:34:28,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:34:28,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:34:28,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574463319] [2022-12-14 09:34:28,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:34:28,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:34:28,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:34:28,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:34:28,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:34:28,628 INFO L87 Difference]: Start difference. First operand 138 states and 187 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 09:34:28,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:34:28,710 INFO L93 Difference]: Finished difference Result 195 states and 254 transitions. [2022-12-14 09:34:28,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:34:28,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2022-12-14 09:34:28,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:34:28,714 INFO L225 Difference]: With dead ends: 195 [2022-12-14 09:34:28,714 INFO L226 Difference]: Without dead ends: 140 [2022-12-14 09:34:28,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:34:28,717 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:34:28,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 321 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:34:28,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-12-14 09:34:28,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2022-12-14 09:34:28,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 84 states have (on average 1.3095238095238095) internal successors, (110), 85 states have internal predecessors, (110), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-12-14 09:34:28,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 189 transitions. [2022-12-14 09:34:28,734 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 189 transitions. Word has length 61 [2022-12-14 09:34:28,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:34:28,734 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 189 transitions. [2022-12-14 09:34:28,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 09:34:28,734 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 189 transitions. [2022-12-14 09:34:28,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 09:34:28,736 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:34:28,736 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] [2022-12-14 09:34:28,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:34:28,736 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:34:28,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:34:28,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1352589436, now seen corresponding path program 1 times [2022-12-14 09:34:28,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:34:28,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509428000] [2022-12-14 09:34:28,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:34:28,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:34:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:34:28,807 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 09:34:28,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:34:28,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509428000] [2022-12-14 09:34:28,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509428000] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:34:28,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:34:28,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:34:28,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028913137] [2022-12-14 09:34:28,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:34:28,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:34:28,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:34:28,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:34:28,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:34:28,810 INFO L87 Difference]: Start difference. First operand 140 states and 189 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 09:34:28,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:34:28,887 INFO L93 Difference]: Finished difference Result 310 states and 437 transitions. [2022-12-14 09:34:28,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:34:28,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 66 [2022-12-14 09:34:28,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:34:28,889 INFO L225 Difference]: With dead ends: 310 [2022-12-14 09:34:28,889 INFO L226 Difference]: Without dead ends: 188 [2022-12-14 09:34:28,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:34:28,890 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 57 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:34:28,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 337 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:34:28,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-12-14 09:34:28,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 183. [2022-12-14 09:34:28,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 116 states have (on average 1.4051724137931034) internal successors, (163), 117 states have internal predecessors, (163), 51 states have call successors, (51), 15 states have call predecessors, (51), 15 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-12-14 09:34:28,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 264 transitions. [2022-12-14 09:34:28,913 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 264 transitions. Word has length 66 [2022-12-14 09:34:28,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:34:28,914 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 264 transitions. [2022-12-14 09:34:28,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 09:34:28,914 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 264 transitions. [2022-12-14 09:34:28,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 09:34:28,916 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:34:28,916 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] [2022-12-14 09:34:28,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:34:28,916 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:34:28,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:34:28,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1131122461, now seen corresponding path program 1 times [2022-12-14 09:34:28,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:34:28,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097881223] [2022-12-14 09:34:28,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:34:28,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:34:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:34:29,017 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 09:34:29,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:34:29,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097881223] [2022-12-14 09:34:29,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097881223] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:34:29,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951589318] [2022-12-14 09:34:29,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:34:29,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:34:29,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:34:29,019 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:34:29,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:34:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:34:29,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:34:29,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:34:29,290 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 09:34:29,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:34:29,346 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 09:34:29,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951589318] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:34:29,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1420237373] [2022-12-14 09:34:29,363 INFO L159 IcfgInterpreter]: Started Sifa with 54 locations of interest [2022-12-14 09:34:29,363 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:34:29,366 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:34:29,370 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:34:29,371 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:35:01,217 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 09:35:01,496 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 09:35:01,767 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:35:41,835 WARN L233 SmtUtils]: Spent 9.12s on a formula simplification. DAG size of input: 588 DAG size of output: 396 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:35:50,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1420237373] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:35:50,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:35:50,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 09:35:50,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305012032] [2022-12-14 09:35:50,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:35:50,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 09:35:50,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:35:50,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 09:35:50,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-12-14 09:35:50,765 INFO L87 Difference]: Start difference. First operand 183 states and 264 transitions. Second operand has 21 states, 16 states have (on average 2.125) internal successors, (34), 15 states have internal predecessors, (34), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-12-14 09:36:04,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:36:04,851 INFO L93 Difference]: Finished difference Result 449 states and 696 transitions. [2022-12-14 09:36:04,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 09:36:04,851 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.125) internal successors, (34), 15 states have internal predecessors, (34), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 67 [2022-12-14 09:36:04,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:36:04,854 INFO L225 Difference]: With dead ends: 449 [2022-12-14 09:36:04,854 INFO L226 Difference]: Without dead ends: 284 [2022-12-14 09:36:04,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 57.6s TimeCoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-12-14 09:36:04,855 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 217 mSDsluCounter, 2109 mSDsCounter, 0 mSdLazyCounter, 1641 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:36:04,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 2290 Invalid, 1660 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-12-14 09:36:04,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2022-12-14 09:36:04,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 211. [2022-12-14 09:36:04,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 143 states have (on average 1.4125874125874125) internal successors, (202), 144 states have internal predecessors, (202), 51 states have call successors, (51), 16 states have call predecessors, (51), 16 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-12-14 09:36:04,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 303 transitions. [2022-12-14 09:36:04,937 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 303 transitions. Word has length 67 [2022-12-14 09:36:04,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:36:04,938 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 303 transitions. [2022-12-14 09:36:04,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.125) internal successors, (34), 15 states have internal predecessors, (34), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2022-12-14 09:36:04,938 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 303 transitions. [2022-12-14 09:36:04,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 09:36:04,942 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:36:04,943 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] [2022-12-14 09:36:04,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:36:05,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:36:05,145 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:36:05,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:36:05,146 INFO L85 PathProgramCache]: Analyzing trace with hash -764605210, now seen corresponding path program 1 times [2022-12-14 09:36:05,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:36:05,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667342911] [2022-12-14 09:36:05,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:36:05,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:36:05,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:36:05,262 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 09:36:05,262 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:36:05,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667342911] [2022-12-14 09:36:05,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667342911] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:36:05,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017955249] [2022-12-14 09:36:05,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:36:05,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:36:05,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:36:05,264 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:36:05,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 09:36:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:36:05,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:36:05,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:36:05,470 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 09:36:05,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:36:05,509 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 09:36:05,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017955249] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:36:05,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1670039645] [2022-12-14 09:36:05,512 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2022-12-14 09:36:05,513 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:36:05,513 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:36:05,513 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:36:05,513 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:36:48,052 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 09:36:48,330 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 450 for LOIs [2022-12-14 09:36:48,615 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:37:30,663 WARN L233 SmtUtils]: Spent 7.05s on a formula simplification. DAG size of input: 583 DAG size of output: 346 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:37:47,891 WARN L233 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 584 DAG size of output: 400 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:37:47,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1670039645] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:37:47,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:37:47,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 09:37:47,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035297662] [2022-12-14 09:37:47,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:37:47,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 09:37:47,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:37:47,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 09:37:47,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=761, Unknown=0, NotChecked=0, Total=870 [2022-12-14 09:37:47,899 INFO L87 Difference]: Start difference. First operand 211 states and 303 transitions. Second operand has 25 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 18 states have internal predecessors, (37), 8 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-12-14 09:38:09,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:38:09,448 INFO L93 Difference]: Finished difference Result 492 states and 754 transitions. [2022-12-14 09:38:09,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 09:38:09,449 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 18 states have internal predecessors, (37), 8 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 73 [2022-12-14 09:38:09,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:38:09,450 INFO L225 Difference]: With dead ends: 492 [2022-12-14 09:38:09,450 INFO L226 Difference]: Without dead ends: 327 [2022-12-14 09:38:09,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 73.8s TimeCoverageRelationStatistics Valid=181, Invalid=1225, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 09:38:09,452 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 176 mSDsluCounter, 2532 mSDsCounter, 0 mSdLazyCounter, 2342 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 2709 SdHoareTripleChecker+Invalid, 2357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:38:09,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 2709 Invalid, 2357 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 2342 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-12-14 09:38:09,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-12-14 09:38:09,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 254. [2022-12-14 09:38:09,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 183 states have (on average 1.46448087431694) internal successors, (268), 185 states have internal predecessors, (268), 53 states have call successors, (53), 17 states have call predecessors, (53), 17 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2022-12-14 09:38:09,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 373 transitions. [2022-12-14 09:38:09,599 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 373 transitions. Word has length 73 [2022-12-14 09:38:09,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:38:09,599 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 373 transitions. [2022-12-14 09:38:09,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 18 states have internal predecessors, (37), 8 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-12-14 09:38:09,599 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 373 transitions. [2022-12-14 09:38:09,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 09:38:09,600 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:38:09,600 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] [2022-12-14 09:38:09,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 09:38:09,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:38:09,802 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:38:09,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:38:09,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1826089919, now seen corresponding path program 1 times [2022-12-14 09:38:09,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:38:09,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816154819] [2022-12-14 09:38:09,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:38:09,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:38:09,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:38:09,908 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 09:38:09,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:38:09,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816154819] [2022-12-14 09:38:09,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816154819] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:38:09,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427357989] [2022-12-14 09:38:09,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:38:09,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:38:09,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:38:09,909 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:38:09,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 09:38:10,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:38:10,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:38:10,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:38:10,108 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 09:38:10,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:38:10,148 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 09:38:10,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427357989] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:38:10,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [584834705] [2022-12-14 09:38:10,151 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-12-14 09:38:10,151 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:38:10,151 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:38:10,151 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:38:10,151 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:38:59,910 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 09:39:00,185 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 234 for LOIs [2022-12-14 09:39:00,245 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 450 for LOIs [2022-12-14 09:39:00,560 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 09:39:00,836 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 243 for LOIs [2022-12-14 09:39:00,898 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:39:39,044 WARN L233 SmtUtils]: Spent 5.93s on a formula simplification. DAG size of input: 636 DAG size of output: 408 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:39:44,923 WARN L233 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 638 DAG size of output: 408 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:39:58,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [584834705] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:39:58,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:39:58,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-12-14 09:39:58,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389302805] [2022-12-14 09:39:58,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:39:58,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 09:39:58,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:39:58,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 09:39:58,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=1021, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 09:39:58,131 INFO L87 Difference]: Start difference. First operand 254 states and 373 transitions. Second operand has 29 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 17 states have internal predecessors, (37), 10 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2022-12-14 09:40:10,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:40:10,735 INFO L93 Difference]: Finished difference Result 562 states and 873 transitions. [2022-12-14 09:40:10,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 09:40:10,736 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 17 states have internal predecessors, (37), 10 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) Word has length 76 [2022-12-14 09:40:10,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:40:10,737 INFO L225 Difference]: With dead ends: 562 [2022-12-14 09:40:10,738 INFO L226 Difference]: Without dead ends: 397 [2022-12-14 09:40:10,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 61.3s TimeCoverageRelationStatistics Valid=118, Invalid=1142, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 09:40:10,739 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 164 mSDsluCounter, 2804 mSDsCounter, 0 mSdLazyCounter, 2884 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 2982 SdHoareTripleChecker+Invalid, 2895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:40:10,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 2982 Invalid, 2895 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 2884 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-12-14 09:40:10,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-12-14 09:40:10,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 350. [2022-12-14 09:40:10,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 272 states have (on average 1.5183823529411764) internal successors, (413), 275 states have internal predecessors, (413), 57 states have call successors, (57), 20 states have call predecessors, (57), 20 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2022-12-14 09:40:10,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 526 transitions. [2022-12-14 09:40:10,980 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 526 transitions. Word has length 76 [2022-12-14 09:40:10,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:40:10,980 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 526 transitions. [2022-12-14 09:40:10,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 17 states have internal predecessors, (37), 10 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2022-12-14 09:40:10,980 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 526 transitions. [2022-12-14 09:40:10,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-14 09:40:10,981 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:40:10,981 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] [2022-12-14 09:40:10,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 09:40:11,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:40:11,183 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:40:11,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:40:11,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1126361216, now seen corresponding path program 1 times [2022-12-14 09:40:11,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:40:11,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623404040] [2022-12-14 09:40:11,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:40:11,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:40:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:40:11,279 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 09:40:11,279 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:40:11,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623404040] [2022-12-14 09:40:11,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623404040] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:40:11,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458512993] [2022-12-14 09:40:11,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:40:11,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:40:11,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:40:11,281 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:40:11,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 09:40:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:40:11,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:40:11,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:40:11,486 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 09:40:11,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:40:11,528 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 09:40:11,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458512993] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:40:11,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1869234155] [2022-12-14 09:40:11,532 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-12-14 09:40:11,532 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:40:11,532 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:40:11,533 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:40:11,533 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:40:52,341 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 09:40:52,618 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 09:40:52,898 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 457 for LOIs [2022-12-14 09:41:13,313 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 455 for LOIs [2022-12-14 09:41:27,771 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 240 for LOIs [2022-12-14 09:41:27,799 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 240 for LOIs [2022-12-14 09:41:27,834 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 445 for LOIs [2022-12-14 09:41:28,443 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 448 for LOIs [2022-12-14 09:41:29,072 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:42:13,491 WARN L233 SmtUtils]: Spent 12.70s on a formula simplification. DAG size of input: 603 DAG size of output: 478 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:42:26,372 WARN L233 SmtUtils]: Spent 12.60s on a formula simplification. DAG size of input: 605 DAG size of output: 481 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:42:33,119 WARN L233 SmtUtils]: Spent 6.45s on a formula simplification. DAG size of input: 604 DAG size of output: 363 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:42:40,150 WARN L233 SmtUtils]: Spent 6.73s on a formula simplification. DAG size of input: 602 DAG size of output: 361 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:43:02,853 WARN L233 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 575 DAG size of output: 436 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:43:08,621 WARN L233 SmtUtils]: Spent 5.42s on a formula simplification. DAG size of input: 573 DAG size of output: 434 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:44:09,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1869234155] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:44:09,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:44:09,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [4, 4, 4] total 59 [2022-12-14 09:44:09,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601594454] [2022-12-14 09:44:09,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:44:09,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-12-14 09:44:09,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:44:09,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-12-14 09:44:09,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=3244, Unknown=0, NotChecked=0, Total=3422 [2022-12-14 09:44:09,899 INFO L87 Difference]: Start difference. First operand 350 states and 526 transitions. Second operand has 54 states, 39 states have (on average 1.0769230769230769) internal successors, (42), 36 states have internal predecessors, (42), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 09:44:18,393 WARN L233 SmtUtils]: Spent 6.36s on a formula simplification. DAG size of input: 574 DAG size of output: 428 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:44:24,665 WARN L233 SmtUtils]: Spent 5.90s on a formula simplification. DAG size of input: 576 DAG size of output: 427 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:44:31,298 WARN L233 SmtUtils]: Spent 6.25s on a formula simplification. DAG size of input: 609 DAG size of output: 428 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:45:09,262 WARN L233 SmtUtils]: Spent 8.14s on a formula simplification. DAG size of input: 606 DAG size of output: 458 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:45:20,746 WARN L233 SmtUtils]: Spent 8.50s on a formula simplification. DAG size of input: 612 DAG size of output: 458 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:45:50,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:45:50,693 INFO L93 Difference]: Finished difference Result 633 states and 971 transitions. [2022-12-14 09:45:50,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-12-14 09:45:50,694 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 39 states have (on average 1.0769230769230769) internal successors, (42), 36 states have internal predecessors, (42), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 75 [2022-12-14 09:45:50,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:45:50,696 INFO L225 Difference]: With dead ends: 633 [2022-12-14 09:45:50,696 INFO L226 Difference]: Without dead ends: 468 [2022-12-14 09:45:50,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 168 SyntacticMatches, 2 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1477 ImplicationChecksByTransitivity, 242.8s TimeCoverageRelationStatistics Valid=565, Invalid=6077, Unknown=0, NotChecked=0, Total=6642 [2022-12-14 09:45:50,698 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 452 mSDsluCounter, 3779 mSDsCounter, 0 mSdLazyCounter, 5847 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 3959 SdHoareTripleChecker+Invalid, 5882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 5847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:45:50,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 3959 Invalid, 5882 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 5847 Invalid, 0 Unknown, 0 Unchecked, 18.0s Time] [2022-12-14 09:45:50,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-12-14 09:45:50,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 392. [2022-12-14 09:45:50,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 302 states have (on average 1.4933774834437086) internal successors, (451), 305 states have internal predecessors, (451), 65 states have call successors, (65), 26 states have call predecessors, (65), 24 states have return successors, (64), 60 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-14 09:45:50,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 580 transitions. [2022-12-14 09:45:50,997 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 580 transitions. Word has length 75 [2022-12-14 09:45:50,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:45:50,997 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 580 transitions. [2022-12-14 09:45:50,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 39 states have (on average 1.0769230769230769) internal successors, (42), 36 states have internal predecessors, (42), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 09:45:50,997 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 580 transitions. [2022-12-14 09:45:50,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 09:45:50,998 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:45:50,998 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] [2022-12-14 09:45:51,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 09:45:51,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:45:51,200 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:45:51,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:45:51,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1042394725, now seen corresponding path program 1 times [2022-12-14 09:45:51,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:45:51,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866589270] [2022-12-14 09:45:51,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:45:51,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:45:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:45:51,335 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 09:45:51,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:45:51,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866589270] [2022-12-14 09:45:51,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866589270] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:45:51,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584614360] [2022-12-14 09:45:51,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:45:51,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:45:51,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:45:51,337 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:45:51,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 09:45:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:45:51,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 09:45:51,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:45:51,562 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 09:45:51,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:45:51,619 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 09:45:51,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584614360] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:45:51,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [322384372] [2022-12-14 09:45:51,622 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2022-12-14 09:45:51,622 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:45:51,623 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:45:51,623 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:45:51,623 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:46:48,456 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 09:46:48,742 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 450 for LOIs [2022-12-14 09:46:49,028 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:47:35,217 WARN L233 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 600 DAG size of output: 341 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:47:41,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [322384372] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:47:41,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:47:41,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [6, 5, 5] total 33 [2022-12-14 09:47:41,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418311739] [2022-12-14 09:47:41,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:47:41,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 09:47:41,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:47:41,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 09:47:41,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=939, Unknown=0, NotChecked=0, Total=1056 [2022-12-14 09:47:41,078 INFO L87 Difference]: Start difference. First operand 392 states and 580 transitions. Second operand has 25 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 8 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-12-14 09:47:59,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:47:59,566 INFO L93 Difference]: Finished difference Result 732 states and 1128 transitions. [2022-12-14 09:47:59,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-14 09:47:59,567 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 8 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 78 [2022-12-14 09:47:59,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:47:59,569 INFO L225 Difference]: With dead ends: 732 [2022-12-14 09:47:59,569 INFO L226 Difference]: Without dead ends: 552 [2022-12-14 09:47:59,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 206 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 62.5s TimeCoverageRelationStatistics Valid=174, Invalid=1308, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 09:47:59,570 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 205 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2595 SdHoareTripleChecker+Invalid, 2430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:47:59,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2595 Invalid, 2430 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [46 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-12-14 09:47:59,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2022-12-14 09:47:59,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 434. [2022-12-14 09:47:59,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 341 states have (on average 1.5102639296187683) internal successors, (515), 345 states have internal predecessors, (515), 67 states have call successors, (67), 27 states have call predecessors, (67), 25 states have return successors, (66), 61 states have call predecessors, (66), 66 states have call successors, (66) [2022-12-14 09:47:59,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 648 transitions. [2022-12-14 09:47:59,965 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 648 transitions. Word has length 78 [2022-12-14 09:47:59,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:47:59,966 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 648 transitions. [2022-12-14 09:47:59,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 8 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-12-14 09:47:59,966 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 648 transitions. [2022-12-14 09:47:59,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-14 09:47:59,968 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:47:59,968 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] [2022-12-14 09:47:59,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 09:48:00,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:48:00,170 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:48:00,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:48:00,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1436689323, now seen corresponding path program 1 times [2022-12-14 09:48:00,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:48:00,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759981709] [2022-12-14 09:48:00,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:48:00,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:48:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:48:00,329 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 09:48:00,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:48:00,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759981709] [2022-12-14 09:48:00,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759981709] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:48:00,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268288886] [2022-12-14 09:48:00,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:48:00,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:48:00,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:48:00,331 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:48:00,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71af5153-b659-42f5-9681-ea52c9e71126/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 09:48:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:48:00,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 09:48:00,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:48:00,540 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 09:48:00,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:48:00,591 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 09:48:00,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268288886] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:48:00,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1999549935] [2022-12-14 09:48:00,594 INFO L159 IcfgInterpreter]: Started Sifa with 65 locations of interest [2022-12-14 09:48:00,594 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:48:00,594 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:48:00,594 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:48:00,595 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs