./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/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_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product24.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/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_b112053a-d8d3-4f7e-9b5c-7f316b230504/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 51fa488e776e831bac86701b44da2398387b953b2cee791cda39a1547c039fcd --- 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 12:26:27,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:26:27,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:26:27,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:26:27,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:26:27,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:26:27,918 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:26:27,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:26:27,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:26:27,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:26:27,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:26:27,924 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:26:27,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:26:27,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:26:27,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:26:27,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:26:27,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:26:27,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:26:27,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:26:27,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:26:27,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:26:27,935 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:26:27,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:26:27,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:26:27,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:26:27,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:26:27,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:26:27,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:26:27,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:26:27,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:26:27,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:26:27,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:26:27,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:26:27,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:26:27,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:26:27,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:26:27,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:26:27,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:26:27,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:26:27,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:26:27,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:26:27,949 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 12:26:27,979 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:26:27,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:26:27,980 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:26:27,980 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:26:27,981 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:26:27,981 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:26:27,981 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:26:27,981 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:26:27,981 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:26:27,982 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:26:27,982 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:26:27,982 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:26:27,982 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:26:27,982 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:26:27,982 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:26:27,983 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:26:27,983 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:26:27,983 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:26:27,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:26:27,984 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 12:26:27,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:26:27,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 12:26:27,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:26:27,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:26:27,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:26:27,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:26:27,985 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 12:26:27,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:26:27,985 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:26:27,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:26:27,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:26:27,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:26:27,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:26:27,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:26:27,986 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:26:27,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:26:27,986 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:26:27,986 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:26:27,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:26:27,987 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:26:27,987 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:26:27,987 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_b112053a-d8d3-4f7e-9b5c-7f316b230504/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51fa488e776e831bac86701b44da2398387b953b2cee791cda39a1547c039fcd [2022-12-14 12:26:28,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:26:28,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:26:28,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:26:28,201 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:26:28,201 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:26:28,202 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec11_product24.cil.c [2022-12-14 12:26:30,724 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:26:30,961 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:26:30,961 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/sv-benchmarks/c/product-lines/email_spec11_product24.cil.c [2022-12-14 12:26:30,976 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/data/365a17498/1f41f940645941c7acd1c25c1434027d/FLAGf422f8d66 [2022-12-14 12:26:31,289 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/data/365a17498/1f41f940645941c7acd1c25c1434027d [2022-12-14 12:26:31,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:26:31,296 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:26:31,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:26:31,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:26:31,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:26:31,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:26:31" (1/1) ... [2022-12-14 12:26:31,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fc89c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:26:31, skipping insertion in model container [2022-12-14 12:26:31,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:26:31" (1/1) ... [2022-12-14 12:26:31,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:26:31,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:26:31,498 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:26:31,502 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:26:31,507 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:26:31,550 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_b112053a-d8d3-4f7e-9b5c-7f316b230504/sv-benchmarks/c/product-lines/email_spec11_product24.cil.c[16887,16900] [2022-12-14 12:26:31,648 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:26:31,660 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:26:31,662 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:26:31,669 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:26:31,670 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:26:31,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:26:31,682 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:26:31,694 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:26:31,695 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:26:31,697 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:26:31,715 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_b112053a-d8d3-4f7e-9b5c-7f316b230504/sv-benchmarks/c/product-lines/email_spec11_product24.cil.c[16887,16900] [2022-12-14 12:26:31,746 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:26:31,750 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:26:31,751 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:26:31,754 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:26:31,755 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:26:31,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:26:31,777 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:26:31,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:26:31 WrapperNode [2022-12-14 12:26:31,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:26:31,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:26:31,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:26:31,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:26:31,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:26:31" (1/1) ... [2022-12-14 12:26:31,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:26:31" (1/1) ... [2022-12-14 12:26:31,839 INFO L138 Inliner]: procedures = 130, calls = 208, calls flagged for inlining = 64, calls inlined = 59, statements flattened = 1049 [2022-12-14 12:26:31,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:26:31,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:26:31,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:26:31,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:26:31,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:26:31" (1/1) ... [2022-12-14 12:26:31,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:26:31" (1/1) ... [2022-12-14 12:26:31,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:26:31" (1/1) ... [2022-12-14 12:26:31,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:26:31" (1/1) ... [2022-12-14 12:26:31,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:26:31" (1/1) ... [2022-12-14 12:26:31,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:26:31" (1/1) ... [2022-12-14 12:26:31,878 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:26:31" (1/1) ... [2022-12-14 12:26:31,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:26:31" (1/1) ... [2022-12-14 12:26:31,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:26:31,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:26:31,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:26:31,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:26:31,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:26:31" (1/1) ... [2022-12-14 12:26:31,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:26:31,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:26:31,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:26:31,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:26:31,963 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 12:26:31,963 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 12:26:31,963 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 12:26:31,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 12:26:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 12:26:31,964 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 12:26:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 12:26:31,964 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 12:26:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 12:26:31,964 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 12:26:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 12:26:31,964 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 12:26:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 12:26:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 12:26:31,964 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 12:26:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-14 12:26:31,964 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-14 12:26:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 12:26:31,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 12:26:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:26:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 12:26:31,965 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 12:26:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 12:26:31,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 12:26:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 12:26:31,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 12:26:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 12:26:31,965 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 12:26:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 12:26:31,965 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 12:26:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 12:26:31,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 12:26:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 12:26:31,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 12:26:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:26:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 12:26:31,966 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 12:26:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:26:31,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:26:32,097 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:26:32,098 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:26:32,626 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:26:33,002 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:26:33,002 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 12:26:33,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:26:33 BoogieIcfgContainer [2022-12-14 12:26:33,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:26:33,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:26:33,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:26:33,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:26:33,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:26:31" (1/3) ... [2022-12-14 12:26:33,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@467f765e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:26:33, skipping insertion in model container [2022-12-14 12:26:33,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:26:31" (2/3) ... [2022-12-14 12:26:33,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@467f765e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:26:33, skipping insertion in model container [2022-12-14 12:26:33,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:26:33" (3/3) ... [2022-12-14 12:26:33,013 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product24.cil.c [2022-12-14 12:26:33,032 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:26:33,032 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 12:26:33,072 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:26:33,076 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;@ba415d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:26:33,076 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 12:26:33,080 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 96 states have (on average 1.34375) internal successors, (129), 98 states have internal predecessors, (129), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-12-14 12:26:33,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-12-14 12:26:33,088 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:26:33,088 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 12:26:33,089 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:26:33,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:26:33,093 INFO L85 PathProgramCache]: Analyzing trace with hash -281346211, now seen corresponding path program 1 times [2022-12-14 12:26:33,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:26:33,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743935722] [2022-12-14 12:26:33,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:26:33,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:26:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:26:33,318 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 12:26:33,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:26:33,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743935722] [2022-12-14 12:26:33,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743935722] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:26:33,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:26:33,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:26:33,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895736524] [2022-12-14 12:26:33,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:26:33,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 12:26:33,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:26:33,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 12:26:33,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 12:26:33,356 INFO L87 Difference]: Start difference. First operand has 161 states, 96 states have (on average 1.34375) internal successors, (129), 98 states have internal predecessors, (129), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) 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 12:26:33,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:26:33,460 INFO L93 Difference]: Finished difference Result 239 states and 320 transitions. [2022-12-14 12:26:33,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 12:26:33,462 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 12:26:33,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:26:33,469 INFO L225 Difference]: With dead ends: 239 [2022-12-14 12:26:33,469 INFO L226 Difference]: Without dead ends: 158 [2022-12-14 12:26:33,472 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 12:26:33,474 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:26:33,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 186 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:26:33,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-12-14 12:26:33,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2022-12-14 12:26:33,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 94 states have (on average 1.3085106382978724) internal successors, (123), 95 states have internal predecessors, (123), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-12-14 12:26:33,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 214 transitions. [2022-12-14 12:26:33,511 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 214 transitions. Word has length 60 [2022-12-14 12:26:33,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:26:33,512 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 214 transitions. [2022-12-14 12:26:33,513 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 12:26:33,513 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 214 transitions. [2022-12-14 12:26:33,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 12:26:33,515 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:26:33,515 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 12:26:33,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:26:33,515 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:26:33,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:26:33,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1131548907, now seen corresponding path program 1 times [2022-12-14 12:26:33,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:26:33,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442599430] [2022-12-14 12:26:33,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:26:33,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:26:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:26:33,655 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 12:26:33,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:26:33,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442599430] [2022-12-14 12:26:33,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442599430] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:26:33,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:26:33,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:26:33,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798556510] [2022-12-14 12:26:33,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:26:33,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:26:33,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:26:33,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:26:33,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:26:33,659 INFO L87 Difference]: Start difference. First operand 158 states and 214 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 12:26:33,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:26:33,760 INFO L93 Difference]: Finished difference Result 235 states and 308 transitions. [2022-12-14 12:26:33,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:26:33,761 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 12:26:33,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:26:33,763 INFO L225 Difference]: With dead ends: 235 [2022-12-14 12:26:33,763 INFO L226 Difference]: Without dead ends: 160 [2022-12-14 12:26:33,763 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 12:26:33,764 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:26:33,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 365 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:26:33,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-12-14 12:26:33,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-12-14 12:26:33,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 96 states have (on average 1.3020833333333333) internal successors, (125), 97 states have internal predecessors, (125), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-12-14 12:26:33,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 216 transitions. [2022-12-14 12:26:33,778 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 216 transitions. Word has length 61 [2022-12-14 12:26:33,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:26:33,778 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 216 transitions. [2022-12-14 12:26:33,778 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 12:26:33,779 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 216 transitions. [2022-12-14 12:26:33,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 12:26:33,780 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:26:33,780 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 12:26:33,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 12:26:33,781 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:26:33,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:26:33,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1640089186, now seen corresponding path program 1 times [2022-12-14 12:26:33,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:26:33,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622459486] [2022-12-14 12:26:33,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:26:33,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:26:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:26:33,856 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 12:26:33,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:26:33,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622459486] [2022-12-14 12:26:33,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622459486] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:26:33,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:26:33,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:26:33,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785749771] [2022-12-14 12:26:33,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:26:33,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:26:33,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:26:33,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:26:33,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:26:33,859 INFO L87 Difference]: Start difference. First operand 160 states and 216 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 12:26:33,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:26:33,954 INFO L93 Difference]: Finished difference Result 350 states and 491 transitions. [2022-12-14 12:26:33,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:26:33,955 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 12:26:33,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:26:33,956 INFO L225 Difference]: With dead ends: 350 [2022-12-14 12:26:33,956 INFO L226 Difference]: Without dead ends: 208 [2022-12-14 12:26:33,957 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 12:26:33,958 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 57 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:26:33,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 376 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:26:33,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-12-14 12:26:33,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 203. [2022-12-14 12:26:33,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 128 states have (on average 1.390625) internal successors, (178), 129 states have internal predecessors, (178), 57 states have call successors, (57), 17 states have call predecessors, (57), 17 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-12-14 12:26:33,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 291 transitions. [2022-12-14 12:26:33,972 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 291 transitions. Word has length 66 [2022-12-14 12:26:33,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:26:33,973 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 291 transitions. [2022-12-14 12:26:33,973 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 12:26:33,973 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 291 transitions. [2022-12-14 12:26:33,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 12:26:33,974 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:26:33,975 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 12:26:33,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 12:26:33,975 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:26:33,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:26:33,975 INFO L85 PathProgramCache]: Analyzing trace with hash 392033897, now seen corresponding path program 1 times [2022-12-14 12:26:33,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:26:33,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845854691] [2022-12-14 12:26:33,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:26:33,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:26:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:26:34,081 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 12:26:34,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:26:34,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845854691] [2022-12-14 12:26:34,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845854691] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:26:34,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336812810] [2022-12-14 12:26:34,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:26:34,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:26:34,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:26:34,084 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:26:34,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 12:26:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:26:34,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:26:34,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:26:34,344 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 12:26:34,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:26:34,399 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 12:26:34,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336812810] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:26:34,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1948282722] [2022-12-14 12:26:34,420 INFO L159 IcfgInterpreter]: Started Sifa with 54 locations of interest [2022-12-14 12:26:34,421 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:26:34,424 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:26:34,430 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:26:34,430 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:27:05,372 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 12:27:05,660 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 12:27:05,955 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:27:43,136 WARN L233 SmtUtils]: Spent 7.09s on a formula simplification. DAG size of input: 596 DAG size of output: 346 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:27:50,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1948282722] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:27:50,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:27:50,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 12:27:50,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513966796] [2022-12-14 12:27:50,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:27:50,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 12:27:50,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:27:50,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 12:27:50,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=570, Unknown=0, NotChecked=0, Total=650 [2022-12-14 12:27:50,818 INFO L87 Difference]: Start difference. First operand 203 states and 291 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 12:28:05,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:28:05,163 INFO L93 Difference]: Finished difference Result 516 states and 803 transitions. [2022-12-14 12:28:05,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-14 12:28:05,164 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 12:28:05,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:28:05,166 INFO L225 Difference]: With dead ends: 516 [2022-12-14 12:28:05,166 INFO L226 Difference]: Without dead ends: 331 [2022-12-14 12:28:05,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 52.7s TimeCoverageRelationStatistics Valid=125, Invalid=805, Unknown=0, NotChecked=0, Total=930 [2022-12-14 12:28:05,168 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 220 mSDsluCounter, 2580 mSDsCounter, 0 mSdLazyCounter, 2011 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2817 SdHoareTripleChecker+Invalid, 2032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:28:05,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 2817 Invalid, 2032 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 2011 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-12-14 12:28:05,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-12-14 12:28:05,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 226. [2022-12-14 12:28:05,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 150 states have (on average 1.4066666666666667) internal successors, (211), 151 states have internal predecessors, (211), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-12-14 12:28:05,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 324 transitions. [2022-12-14 12:28:05,363 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 324 transitions. Word has length 67 [2022-12-14 12:28:05,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:28:05,364 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 324 transitions. [2022-12-14 12:28:05,364 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 12:28:05,364 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 324 transitions. [2022-12-14 12:28:05,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 12:28:05,369 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:28:05,369 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] [2022-12-14 12:28:05,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 12:28:05,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:28:05,571 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:28:05,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:28:05,573 INFO L85 PathProgramCache]: Analyzing trace with hash -8639999, now seen corresponding path program 1 times [2022-12-14 12:28:05,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:28:05,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776794150] [2022-12-14 12:28:05,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:28:05,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:28:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:28:05,643 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 12:28:05,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:28:05,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776794150] [2022-12-14 12:28:05,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776794150] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:28:05,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:28:05,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:28:05,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108539837] [2022-12-14 12:28:05,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:28:05,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:28:05,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:28:05,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:28:05,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:28:05,646 INFO L87 Difference]: Start difference. First operand 226 states and 324 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 12:28:05,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:28:05,920 INFO L93 Difference]: Finished difference Result 545 states and 812 transitions. [2022-12-14 12:28:05,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:28:05,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 72 [2022-12-14 12:28:05,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:28:05,923 INFO L225 Difference]: With dead ends: 545 [2022-12-14 12:28:05,923 INFO L226 Difference]: Without dead ends: 343 [2022-12-14 12:28:05,924 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 12:28:05,925 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 55 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:28:05,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 389 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:28:05,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2022-12-14 12:28:06,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 338. [2022-12-14 12:28:06,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 237 states have (on average 1.4641350210970465) internal successors, (347), 238 states have internal predecessors, (347), 82 states have call successors, (82), 18 states have call predecessors, (82), 18 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-12-14 12:28:06,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 510 transitions. [2022-12-14 12:28:06,101 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 510 transitions. Word has length 72 [2022-12-14 12:28:06,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:28:06,101 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 510 transitions. [2022-12-14 12:28:06,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 12:28:06,101 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 510 transitions. [2022-12-14 12:28:06,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 12:28:06,103 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:28:06,103 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 12:28:06,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 12:28:06,103 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:28:06,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:28:06,103 INFO L85 PathProgramCache]: Analyzing trace with hash 414394345, now seen corresponding path program 1 times [2022-12-14 12:28:06,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:28:06,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123505213] [2022-12-14 12:28:06,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:28:06,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:28:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:28:06,204 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 12:28:06,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:28:06,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123505213] [2022-12-14 12:28:06,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123505213] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:28:06,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381702435] [2022-12-14 12:28:06,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:28:06,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:28:06,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:28:06,206 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:28:06,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 12:28:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:28:06,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:28:06,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:28:06,400 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 12:28:06,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:28:06,449 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 12:28:06,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381702435] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:28:06,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [283932041] [2022-12-14 12:28:06,452 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2022-12-14 12:28:06,453 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:28:06,453 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:28:06,453 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:28:06,453 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:28:52,828 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 12:28:53,117 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 450 for LOIs [2022-12-14 12:28:53,410 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:29:31,477 WARN L233 SmtUtils]: Spent 7.17s on a formula simplification. DAG size of input: 593 DAG size of output: 335 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:29:39,914 WARN L233 SmtUtils]: Spent 6.15s on a formula simplification. DAG size of input: 582 DAG size of output: 443 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:29:46,480 WARN L233 SmtUtils]: Spent 6.25s on a formula simplification. DAG size of input: 580 DAG size of output: 442 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:29:58,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [283932041] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:29:58,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:29:58,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 12:29:58,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815915978] [2022-12-14 12:29:58,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:29:58,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 12:29:58,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:29:58,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 12:29:58,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=751, Unknown=0, NotChecked=0, Total=870 [2022-12-14 12:29:58,421 INFO L87 Difference]: Start difference. First operand 338 states and 510 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 12:30:24,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:30:24,165 INFO L93 Difference]: Finished difference Result 729 states and 1141 transitions. [2022-12-14 12:30:24,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-14 12:30:24,166 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 12:30:24,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:30:24,168 INFO L225 Difference]: With dead ends: 729 [2022-12-14 12:30:24,168 INFO L226 Difference]: Without dead ends: 454 [2022-12-14 12:30:24,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 83.3s TimeCoverageRelationStatistics Valid=197, Invalid=1135, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 12:30:24,169 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 131 mSDsluCounter, 2552 mSDsCounter, 0 mSdLazyCounter, 2048 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 2752 SdHoareTripleChecker+Invalid, 2066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:30:24,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 2752 Invalid, 2066 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 2048 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-12-14 12:30:24,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2022-12-14 12:30:24,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 381. [2022-12-14 12:30:24,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 277 states have (on average 1.4873646209386282) internal successors, (412), 279 states have internal predecessors, (412), 84 states have call successors, (84), 19 states have call predecessors, (84), 19 states have return successors, (83), 82 states have call predecessors, (83), 83 states have call successors, (83) [2022-12-14 12:30:24,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 579 transitions. [2022-12-14 12:30:24,405 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 579 transitions. Word has length 73 [2022-12-14 12:30:24,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:30:24,405 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 579 transitions. [2022-12-14 12:30:24,405 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 12:30:24,405 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 579 transitions. [2022-12-14 12:30:24,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 12:30:24,407 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:30:24,407 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 12:30:24,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 12:30:24,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:30:24,608 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:30:24,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:30:24,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1216734803, now seen corresponding path program 1 times [2022-12-14 12:30:24,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:30:24,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102412958] [2022-12-14 12:30:24,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:30:24,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:30:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:30:24,745 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 12:30:24,745 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:30:24,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102412958] [2022-12-14 12:30:24,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102412958] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:30:24,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690794375] [2022-12-14 12:30:24,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:30:24,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:30:24,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:30:24,747 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:30:24,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 12:30:24,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:30:24,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 1151 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:30:24,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:30:24,943 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 12:30:24,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:30:24,977 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 12:30:24,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690794375] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:30:24,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [420319090] [2022-12-14 12:30:24,981 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-12-14 12:30:24,982 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:30:24,982 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:30:24,982 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:30:24,982 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:31:01,494 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 12:31:01,800 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 234 for LOIs [2022-12-14 12:31:01,865 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 218 for LOIs [2022-12-14 12:31:01,925 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 12:31:02,222 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 231 for LOIs [2022-12-14 12:31:02,282 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:31:36,091 WARN L233 SmtUtils]: Spent 5.59s 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 12:31:44,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [420319090] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:31:44,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:31:44,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-12-14 12:31:44,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560548230] [2022-12-14 12:31:44,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:31:44,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 12:31:44,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:31:44,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 12:31:44,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1019, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 12:31:44,965 INFO L87 Difference]: Start difference. First operand 381 states and 579 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 12:32:03,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:32:03,956 INFO L93 Difference]: Finished difference Result 790 states and 1241 transitions. [2022-12-14 12:32:03,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 12:32:03,957 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 12:32:03,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:32:03,959 INFO L225 Difference]: With dead ends: 790 [2022-12-14 12:32:03,959 INFO L226 Difference]: Without dead ends: 515 [2022-12-14 12:32:03,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 52.7s TimeCoverageRelationStatistics Valid=169, Invalid=1553, Unknown=0, NotChecked=0, Total=1722 [2022-12-14 12:32:03,960 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 197 mSDsluCounter, 2994 mSDsCounter, 0 mSdLazyCounter, 3128 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 3202 SdHoareTripleChecker+Invalid, 3149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-12-14 12:32:03,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 3202 Invalid, 3149 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 3128 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2022-12-14 12:32:03,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-12-14 12:32:04,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 447. [2022-12-14 12:32:04,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 336 states have (on average 1.5) internal successors, (504), 339 states have internal predecessors, (504), 88 states have call successors, (88), 22 states have call predecessors, (88), 22 states have return successors, (87), 85 states have call predecessors, (87), 87 states have call successors, (87) [2022-12-14 12:32:04,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 679 transitions. [2022-12-14 12:32:04,282 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 679 transitions. Word has length 76 [2022-12-14 12:32:04,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:32:04,282 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 679 transitions. [2022-12-14 12:32:04,282 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 12:32:04,282 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 679 transitions. [2022-12-14 12:32:04,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-14 12:32:04,283 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:32:04,283 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 12:32:04,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 12:32:04,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:32:04,484 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:32:04,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:32:04,484 INFO L85 PathProgramCache]: Analyzing trace with hash 905016960, now seen corresponding path program 1 times [2022-12-14 12:32:04,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:32:04,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59584920] [2022-12-14 12:32:04,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:32:04,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:32:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:32:04,555 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 12:32:04,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:32:04,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59584920] [2022-12-14 12:32:04,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59584920] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:32:04,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398987323] [2022-12-14 12:32:04,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:32:04,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:32:04,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:32:04,557 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:32:04,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 12:32:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:32:04,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 1056 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:32:04,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:32:04,768 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 12:32:04,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:32:04,811 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 12:32:04,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398987323] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:32:04,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1988483525] [2022-12-14 12:32:04,814 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-12-14 12:32:04,814 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:32:04,815 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:32:04,815 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:32:04,815 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:32:50,679 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 12:32:50,969 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 12:32:51,256 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 259 for LOIs [2022-12-14 12:32:52,874 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-12-14 12:32:52,914 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 261 for LOIs [2022-12-14 12:33:12,367 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 435 for LOIs [2022-12-14 12:33:12,598 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 251 for LOIs [2022-12-14 12:33:12,640 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 445 for LOIs [2022-12-14 12:33:13,259 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:33:48,265 WARN L233 SmtUtils]: Spent 5.66s on a formula simplification. DAG size of input: 608 DAG size of output: 360 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:34:43,239 WARN L233 SmtUtils]: Spent 5.29s on a formula simplification. DAG size of input: 603 DAG size of output: 387 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:34:47,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1988483525] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:34:47,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:34:47,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [4, 4, 4] total 56 [2022-12-14 12:34:47,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638633801] [2022-12-14 12:34:47,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:34:47,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-12-14 12:34:47,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:34:47,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-12-14 12:34:47,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=2904, Unknown=0, NotChecked=0, Total=3080 [2022-12-14 12:34:47,995 INFO L87 Difference]: Start difference. First operand 447 states and 679 transitions. Second operand has 51 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 34 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 12:35:30,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:35:30,861 INFO L93 Difference]: Finished difference Result 850 states and 1318 transitions. [2022-12-14 12:35:30,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-12-14 12:35:30,862 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 34 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 12:35:30,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:35:30,864 INFO L225 Difference]: With dead ends: 850 [2022-12-14 12:35:30,864 INFO L226 Difference]: Without dead ends: 575 [2022-12-14 12:35:30,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1274 ImplicationChecksByTransitivity, 122.3s TimeCoverageRelationStatistics Valid=533, Invalid=5473, Unknown=0, NotChecked=0, Total=6006 [2022-12-14 12:35:30,866 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 289 mSDsluCounter, 4209 mSDsCounter, 0 mSdLazyCounter, 5576 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 4413 SdHoareTripleChecker+Invalid, 5604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 5576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2022-12-14 12:35:30,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 4413 Invalid, 5604 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 5576 Invalid, 0 Unknown, 0 Unchecked, 14.4s Time] [2022-12-14 12:35:30,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2022-12-14 12:35:31,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 496. [2022-12-14 12:35:31,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 371 states have (on average 1.4851752021563343) internal successors, (551), 375 states have internal predecessors, (551), 97 states have call successors, (97), 28 states have call predecessors, (97), 27 states have return successors, (97), 92 states have call predecessors, (97), 96 states have call successors, (97) [2022-12-14 12:35:31,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 745 transitions. [2022-12-14 12:35:31,227 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 745 transitions. Word has length 75 [2022-12-14 12:35:31,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:35:31,227 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 745 transitions. [2022-12-14 12:35:31,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 34 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 12:35:31,228 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 745 transitions. [2022-12-14 12:35:31,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 12:35:31,229 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:35:31,229 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 12:35:31,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 12:35:31,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:35:31,429 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:35:31,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:35:31,430 INFO L85 PathProgramCache]: Analyzing trace with hash -854685245, now seen corresponding path program 1 times [2022-12-14 12:35:31,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:35:31,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097671916] [2022-12-14 12:35:31,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:35:31,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:35:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:35:31,538 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-14 12:35:31,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:35:31,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097671916] [2022-12-14 12:35:31,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097671916] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:35:31,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504489435] [2022-12-14 12:35:31,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:35:31,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:35:31,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:35:31,540 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:35:31,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 12:35:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:35:31,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 1068 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 12:35:31,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:35:31,777 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 12:35:31,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:35:31,828 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 12:35:31,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504489435] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:35:31,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [259836018] [2022-12-14 12:35:31,831 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2022-12-14 12:35:31,831 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:35:31,832 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:35:31,832 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:35:31,832 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:36:27,912 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 12:36:28,213 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 439 for LOIs [2022-12-14 12:36:28,499 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:37:18,098 WARN L233 SmtUtils]: Spent 9.02s on a formula simplification. DAG size of input: 599 DAG size of output: 463 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:37:27,097 WARN L233 SmtUtils]: Spent 8.57s on a formula simplification. DAG size of input: 601 DAG size of output: 465 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:37:28,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [259836018] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:37:28,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:37:28,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [6, 5, 5] total 33 [2022-12-14 12:37:28,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546612902] [2022-12-14 12:37:28,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:37:28,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 12:37:28,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:37:28,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 12:37:28,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=939, Unknown=0, NotChecked=0, Total=1056 [2022-12-14 12:37:28,201 INFO L87 Difference]: Start difference. First operand 496 states and 745 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 12:37:45,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:37:45,298 INFO L93 Difference]: Finished difference Result 939 states and 1464 transitions. [2022-12-14 12:37:45,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-14 12:37:45,299 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 12:37:45,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:37:45,301 INFO L225 Difference]: With dead ends: 939 [2022-12-14 12:37:45,301 INFO L226 Difference]: Without dead ends: 649 [2022-12-14 12:37:45,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 206 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 69.2s TimeCoverageRelationStatistics Valid=174, Invalid=1308, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 12:37:45,302 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 338 mSDsluCounter, 2603 mSDsCounter, 0 mSdLazyCounter, 2100 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 2150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-12-14 12:37:45,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 2832 Invalid, 2150 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [50 Valid, 2100 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-12-14 12:37:45,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2022-12-14 12:37:45,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 545. [2022-12-14 12:37:45,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 416 states have (on average 1.4927884615384615) internal successors, (621), 421 states have internal predecessors, (621), 100 states have call successors, (100), 29 states have call predecessors, (100), 28 states have return successors, (100), 94 states have call predecessors, (100), 99 states have call successors, (100) [2022-12-14 12:37:45,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 821 transitions. [2022-12-14 12:37:45,806 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 821 transitions. Word has length 78 [2022-12-14 12:37:45,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:37:45,806 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 821 transitions. [2022-12-14 12:37:45,806 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 12:37:45,806 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 821 transitions. [2022-12-14 12:37:45,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-14 12:37:45,808 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:37:45,808 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 12:37:45,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-14 12:37:46,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-12-14 12:37:46,009 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:37:46,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:37:46,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1627871772, now seen corresponding path program 1 times [2022-12-14 12:37:46,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:37:46,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455804194] [2022-12-14 12:37:46,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:37:46,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:37:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:37:46,179 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-14 12:37:46,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:37:46,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455804194] [2022-12-14 12:37:46,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455804194] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:37:46,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007222570] [2022-12-14 12:37:46,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:37:46,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:37:46,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:37:46,181 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:37:46,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 12:37:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:37:46,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 1174 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 12:37:46,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:37:46,451 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 12:37:46,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:37:46,505 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 12:37:46,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007222570] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:37:46,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1326848846] [2022-12-14 12:37:46,509 INFO L159 IcfgInterpreter]: Started Sifa with 65 locations of interest [2022-12-14 12:37:46,509 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:37:46,509 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:37:46,509 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:37:46,509 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:38:50,289 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 12:38:50,582 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 234 for LOIs [2022-12-14 12:38:50,642 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 403 for LOIs [2022-12-14 12:38:50,910 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 12:38:51,201 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 234 for LOIs [2022-12-14 12:38:51,263 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:39:56,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1326848846] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:39:56,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:39:56,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [6, 5, 5] total 39 [2022-12-14 12:39:56,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886291739] [2022-12-14 12:39:56,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:39:56,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-12-14 12:39:56,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:39:56,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-12-14 12:39:56,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1367, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 12:39:56,980 INFO L87 Difference]: Start difference. First operand 545 states and 821 transitions. Second operand has 31 states, 21 states have (on average 1.9047619047619047) internal successors, (40), 19 states have internal predecessors, (40), 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 12:40:33,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:40:33,326 INFO L93 Difference]: Finished difference Result 953 states and 1472 transitions. [2022-12-14 12:40:33,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-14 12:40:33,327 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 21 states have (on average 1.9047619047619047) internal successors, (40), 19 states have internal predecessors, (40), 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 81 [2022-12-14 12:40:33,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:40:33,331 INFO L225 Difference]: With dead ends: 953 [2022-12-14 12:40:33,332 INFO L226 Difference]: Without dead ends: 625 [2022-12-14 12:40:33,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 208 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 91.1s TimeCoverageRelationStatistics Valid=178, Invalid=1984, Unknown=0, NotChecked=0, Total=2162 [2022-12-14 12:40:33,333 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 249 mSDsluCounter, 3041 mSDsCounter, 0 mSdLazyCounter, 3406 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 3269 SdHoareTripleChecker+Invalid, 3434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 3406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:40:33,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 3269 Invalid, 3434 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 3406 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2022-12-14 12:40:33,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2022-12-14 12:40:33,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 555. [2022-12-14 12:40:33,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 426 states have (on average 1.4859154929577465) internal successors, (633), 431 states have internal predecessors, (633), 100 states have call successors, (100), 29 states have call predecessors, (100), 28 states have return successors, (100), 94 states have call predecessors, (100), 99 states have call successors, (100) [2022-12-14 12:40:33,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 833 transitions. [2022-12-14 12:40:33,844 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 833 transitions. Word has length 81 [2022-12-14 12:40:33,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:40:33,844 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 833 transitions. [2022-12-14 12:40:33,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 21 states have (on average 1.9047619047619047) internal successors, (40), 19 states have internal predecessors, (40), 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 12:40:33,845 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 833 transitions. [2022-12-14 12:40:33,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 12:40:33,846 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:40:33,846 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:40:33,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 12:40:34,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 12:40:34,047 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:40:34,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:40:34,048 INFO L85 PathProgramCache]: Analyzing trace with hash -796179999, now seen corresponding path program 1 times [2022-12-14 12:40:34,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:40:34,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829028141] [2022-12-14 12:40:34,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:40:34,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:40:34,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:40:34,150 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 12:40:34,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:40:34,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829028141] [2022-12-14 12:40:34,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829028141] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:40:34,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791651516] [2022-12-14 12:40:34,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:40:34,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:40:34,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:40:34,152 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:40:34,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b112053a-d8d3-4f7e-9b5c-7f316b230504/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 12:40:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:40:34,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:40:34,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:40:34,392 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 12:40:34,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:40:34,436 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 12:40:34,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791651516] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:40:34,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1020543779] [2022-12-14 12:40:34,439 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2022-12-14 12:40:34,439 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:40:34,439 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:40:34,440 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:40:34,440 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs