./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product20.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS --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 da4068869d66a98d783b3eb3a8d0497ba7ef569dcf8b3f3f7d9e0053e2966936 --- 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-8393723 [2022-11-19 05:50:08,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 05:50:08,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 05:50:08,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 05:50:08,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 05:50:08,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 05:50:08,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 05:50:08,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 05:50:08,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 05:50:08,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 05:50:08,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 05:50:08,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 05:50:08,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 05:50:08,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 05:50:08,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 05:50:08,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 05:50:08,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 05:50:08,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 05:50:08,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 05:50:08,914 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 05:50:08,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 05:50:08,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 05:50:08,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 05:50:08,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 05:50:08,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 05:50:08,922 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 05:50:08,923 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 05:50:08,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 05:50:08,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 05:50:08,925 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 05:50:08,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 05:50:08,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 05:50:08,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 05:50:08,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 05:50:08,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 05:50:08,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 05:50:08,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 05:50:08,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 05:50:08,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 05:50:08,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 05:50:08,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 05:50:08,948 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 05:50:08,987 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 05:50:08,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 05:50:08,987 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 05:50:08,988 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 05:50:08,988 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 05:50:08,988 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 05:50:08,989 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 05:50:08,989 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 05:50:08,989 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 05:50:08,989 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 05:50:08,989 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 05:50:08,990 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 05:50:08,990 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 05:50:08,990 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 05:50:08,990 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 05:50:08,991 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 05:50:08,991 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 05:50:08,991 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 05:50:08,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 05:50:08,992 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 05:50:08,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 05:50:08,992 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 05:50:08,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 05:50:08,992 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 05:50:08,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 05:50:08,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 05:50:08,993 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 05:50:08,993 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 05:50:08,994 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 05:50:08,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 05:50:08,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 05:50:08,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 05:50:09,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 05:50:09,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 05:50:09,000 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 05:50:09,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 05:50:09,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 05:50:09,002 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 05:50:09,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 05:50:09,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 05:50:09,003 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 05:50:09,003 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_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da4068869d66a98d783b3eb3a8d0497ba7ef569dcf8b3f3f7d9e0053e2966936 [2022-11-19 05:50:09,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 05:50:09,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 05:50:09,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 05:50:09,366 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 05:50:09,367 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 05:50:09,369 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/email_spec9_product20.cil.c [2022-11-19 05:50:09,450 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/data/bd5934f38/e4c672ca3e714c4096b91569c15cf5b6/FLAGcca8643a2 [2022-11-19 05:50:10,078 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 05:50:10,078 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/sv-benchmarks/c/product-lines/email_spec9_product20.cil.c [2022-11-19 05:50:10,099 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/data/bd5934f38/e4c672ca3e714c4096b91569c15cf5b6/FLAGcca8643a2 [2022-11-19 05:50:10,283 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/data/bd5934f38/e4c672ca3e714c4096b91569c15cf5b6 [2022-11-19 05:50:10,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 05:50:10,287 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 05:50:10,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 05:50:10,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 05:50:10,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 05:50:10,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:50:10" (1/1) ... [2022-11-19 05:50:10,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ef9b182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:50:10, skipping insertion in model container [2022-11-19 05:50:10,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:50:10" (1/1) ... [2022-11-19 05:50:10,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 05:50:10,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 05:50:11,117 WARN L234 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_0889d8f9-0e85-422c-aed8-9adfae0f0645/sv-benchmarks/c/product-lines/email_spec9_product20.cil.c[63436,63449] [2022-11-19 05:50:11,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 05:50:11,138 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 05:50:11,234 WARN L234 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_0889d8f9-0e85-422c-aed8-9adfae0f0645/sv-benchmarks/c/product-lines/email_spec9_product20.cil.c[63436,63449] [2022-11-19 05:50:11,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 05:50:11,265 INFO L208 MainTranslator]: Completed translation [2022-11-19 05:50:11,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:50:11 WrapperNode [2022-11-19 05:50:11,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 05:50:11,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 05:50:11,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 05:50:11,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 05:50:11,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:50:11" (1/1) ... [2022-11-19 05:50:11,302 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:50:11" (1/1) ... [2022-11-19 05:50:11,380 INFO L138 Inliner]: procedures = 129, calls = 220, calls flagged for inlining = 56, calls inlined = 49, statements flattened = 967 [2022-11-19 05:50:11,381 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 05:50:11,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 05:50:11,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 05:50:11,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 05:50:11,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:50:11" (1/1) ... [2022-11-19 05:50:11,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:50:11" (1/1) ... [2022-11-19 05:50:11,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:50:11" (1/1) ... [2022-11-19 05:50:11,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:50:11" (1/1) ... [2022-11-19 05:50:11,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:50:11" (1/1) ... [2022-11-19 05:50:11,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:50:11" (1/1) ... [2022-11-19 05:50:11,472 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:50:11" (1/1) ... [2022-11-19 05:50:11,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:50:11" (1/1) ... [2022-11-19 05:50:11,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 05:50:11,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 05:50:11,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 05:50:11,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 05:50:11,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:50:11" (1/1) ... [2022-11-19 05:50:11,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 05:50:11,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 05:50:11,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 05:50:11,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 05:50:11,608 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-19 05:50:11,608 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-19 05:50:11,608 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-19 05:50:11,608 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-19 05:50:11,609 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-19 05:50:11,609 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-19 05:50:11,609 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-19 05:50:11,609 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-19 05:50:11,609 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-19 05:50:11,609 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-19 05:50:11,609 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-19 05:50:11,609 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-19 05:50:11,609 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-19 05:50:11,610 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-19 05:50:11,610 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-19 05:50:11,610 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-19 05:50:11,610 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-19 05:50:11,610 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-19 05:50:11,610 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-19 05:50:11,610 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-19 05:50:11,610 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-19 05:50:11,610 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-19 05:50:11,611 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-19 05:50:11,611 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-19 05:50:11,611 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-19 05:50:11,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 05:50:11,611 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-19 05:50:11,611 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-19 05:50:11,611 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-19 05:50:11,611 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-19 05:50:11,612 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-19 05:50:11,612 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-19 05:50:11,612 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-19 05:50:11,612 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-19 05:50:11,612 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-19 05:50:11,612 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-19 05:50:11,613 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-19 05:50:11,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-19 05:50:11,613 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-19 05:50:11,613 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-19 05:50:11,613 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-19 05:50:11,613 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-19 05:50:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 05:50:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-19 05:50:11,615 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-19 05:50:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-19 05:50:11,615 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-19 05:50:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 05:50:11,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 05:50:11,821 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 05:50:11,824 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 05:50:12,844 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 05:50:13,489 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 05:50:13,490 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 05:50:13,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:50:13 BoogieIcfgContainer [2022-11-19 05:50:13,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 05:50:13,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 05:50:13,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 05:50:13,502 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 05:50:13,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:50:10" (1/3) ... [2022-11-19 05:50:13,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6dda5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:50:13, skipping insertion in model container [2022-11-19 05:50:13,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:50:11" (2/3) ... [2022-11-19 05:50:13,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6dda5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:50:13, skipping insertion in model container [2022-11-19 05:50:13,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:50:13" (3/3) ... [2022-11-19 05:50:13,506 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product20.cil.c [2022-11-19 05:50:13,529 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 05:50:13,529 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 05:50:13,614 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 05:50:13,625 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;@26b4c01a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 05:50:13,626 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 05:50:13,631 INFO L276 IsEmpty]: Start isEmpty. Operand has 181 states, 103 states have (on average 1.3398058252427185) internal successors, (138), 108 states have internal predecessors, (138), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2022-11-19 05:50:13,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-19 05:50:13,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 05:50:13,651 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-19 05:50:13,652 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 05:50:13,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 05:50:13,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1101190483, now seen corresponding path program 1 times [2022-11-19 05:50:13,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 05:50:13,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628175362] [2022-11-19 05:50:13,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 05:50:13,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 05:50:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 05:50:14,071 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 05:50:14,072 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 05:50:14,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628175362] [2022-11-19 05:50:14,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628175362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 05:50:14,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 05:50:14,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 05:50:14,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016753944] [2022-11-19 05:50:14,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 05:50:14,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 05:50:14,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 05:50:14,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 05:50:14,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 05:50:14,140 INFO L87 Difference]: Start difference. First operand has 181 states, 103 states have (on average 1.3398058252427185) internal successors, (138), 108 states have internal predecessors, (138), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 05:50:14,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 05:50:14,361 INFO L93 Difference]: Finished difference Result 270 states and 363 transitions. [2022-11-19 05:50:14,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 05:50:14,363 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2022-11-19 05:50:14,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 05:50:14,387 INFO L225 Difference]: With dead ends: 270 [2022-11-19 05:50:14,387 INFO L226 Difference]: Without dead ends: 178 [2022-11-19 05:50:14,397 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 [2022-11-19 05:50:14,401 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 05:50:14,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 208 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 05:50:14,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-11-19 05:50:14,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2022-11-19 05:50:14,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 101 states have (on average 1.306930693069307) internal successors, (132), 105 states have internal predecessors, (132), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2022-11-19 05:50:14,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 239 transitions. [2022-11-19 05:50:14,491 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 239 transitions. Word has length 63 [2022-11-19 05:50:14,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 05:50:14,493 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 239 transitions. [2022-11-19 05:50:14,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 05:50:14,493 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 239 transitions. [2022-11-19 05:50:14,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-19 05:50:14,497 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 05:50:14,497 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-19 05:50:14,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 05:50:14,497 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 05:50:14,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 05:50:14,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1826124667, now seen corresponding path program 1 times [2022-11-19 05:50:14,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 05:50:14,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020419748] [2022-11-19 05:50:14,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 05:50:14,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 05:50:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 05:50:14,805 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 05:50:14,806 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 05:50:14,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020419748] [2022-11-19 05:50:14,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020419748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 05:50:14,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 05:50:14,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 05:50:14,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321056881] [2022-11-19 05:50:14,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 05:50:14,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 05:50:14,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 05:50:14,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 05:50:14,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 05:50:14,810 INFO L87 Difference]: Start difference. First operand 178 states and 239 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 05:50:14,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 05:50:14,946 INFO L93 Difference]: Finished difference Result 266 states and 348 transitions. [2022-11-19 05:50:14,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 05:50:14,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 64 [2022-11-19 05:50:14,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 05:50:14,950 INFO L225 Difference]: With dead ends: 266 [2022-11-19 05:50:14,950 INFO L226 Difference]: Without dead ends: 180 [2022-11-19 05:50:14,951 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 [2022-11-19 05:50:14,953 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 0 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 05:50:14,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 409 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 05:50:14,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-11-19 05:50:14,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2022-11-19 05:50:14,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 107 states have internal predecessors, (134), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2022-11-19 05:50:14,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 241 transitions. [2022-11-19 05:50:14,972 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 241 transitions. Word has length 64 [2022-11-19 05:50:14,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 05:50:14,973 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 241 transitions. [2022-11-19 05:50:14,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 05:50:14,974 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 241 transitions. [2022-11-19 05:50:14,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-19 05:50:14,976 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 05:50:14,977 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 05:50:14,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 05:50:14,977 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 05:50:14,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 05:50:14,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1829501895, now seen corresponding path program 1 times [2022-11-19 05:50:14,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 05:50:14,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353995155] [2022-11-19 05:50:14,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 05:50:14,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 05:50:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 05:50:15,115 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 05:50:15,116 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 05:50:15,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353995155] [2022-11-19 05:50:15,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353995155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 05:50:15,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 05:50:15,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 05:50:15,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657088044] [2022-11-19 05:50:15,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 05:50:15,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 05:50:15,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 05:50:15,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 05:50:15,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 05:50:15,119 INFO L87 Difference]: Start difference. First operand 180 states and 241 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 05:50:15,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 05:50:15,255 INFO L93 Difference]: Finished difference Result 395 states and 549 transitions. [2022-11-19 05:50:15,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 05:50:15,255 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, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 69 [2022-11-19 05:50:15,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 05:50:15,258 INFO L225 Difference]: With dead ends: 395 [2022-11-19 05:50:15,258 INFO L226 Difference]: Without dead ends: 233 [2022-11-19 05:50:15,259 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 [2022-11-19 05:50:15,260 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 59 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 05:50:15,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 431 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 05:50:15,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-11-19 05:50:15,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 228. [2022-11-19 05:50:15,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 137 states have (on average 1.3795620437956204) internal successors, (189), 141 states have internal predecessors, (189), 68 states have call successors, (68), 22 states have call predecessors, (68), 22 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2022-11-19 05:50:15,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 324 transitions. [2022-11-19 05:50:15,284 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 324 transitions. Word has length 69 [2022-11-19 05:50:15,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 05:50:15,285 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 324 transitions. [2022-11-19 05:50:15,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 05:50:15,285 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 324 transitions. [2022-11-19 05:50:15,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-19 05:50:15,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 05:50:15,288 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 05:50:15,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 05:50:15,289 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 05:50:15,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 05:50:15,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1958243643, now seen corresponding path program 1 times [2022-11-19 05:50:15,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 05:50:15,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830438495] [2022-11-19 05:50:15,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 05:50:15,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 05:50:15,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 05:50:15,514 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 05:50:15,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 05:50:15,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830438495] [2022-11-19 05:50:15,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830438495] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 05:50:15,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472222699] [2022-11-19 05:50:15,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 05:50:15,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 05:50:15,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 05:50:15,519 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 05:50:15,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 05:50:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 05:50:15,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 05:50:15,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 05:50:16,022 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 05:50:16,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 05:50:16,102 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 05:50:16,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472222699] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 05:50:16,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [382336325] [2022-11-19 05:50:16,124 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2022-11-19 05:50:16,124 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 05:50:16,128 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 05:50:16,134 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 05:50:16,135 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 05:50:50,421 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-19 05:50:50,730 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-11-19 05:50:51,113 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 257 for LOIs [2022-11-19 05:50:52,926 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-11-19 05:50:52,969 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 259 for LOIs [2022-11-19 05:50:53,754 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 267 for LOIs [2022-11-19 05:50:58,060 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 238 for LOIs [2022-11-19 05:50:58,100 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 473 for LOIs [2022-11-19 05:51:02,747 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 229 for LOIs [2022-11-19 05:51:02,787 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 05:51:17,164 WARN L233 SmtUtils]: Spent 6.04s on a formula simplification. DAG size of input: 443 DAG size of output: 327 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:51:23,686 WARN L233 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 466 DAG size of output: 347 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:51:30,938 WARN L233 SmtUtils]: Spent 6.36s on a formula simplification. DAG size of input: 448 DAG size of output: 305 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:51:37,689 WARN L233 SmtUtils]: Spent 6.59s on a formula simplification. DAG size of input: 471 DAG size of output: 325 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:51:43,404 WARN L233 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 468 DAG size of output: 303 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:51:59,710 WARN L233 SmtUtils]: Spent 5.92s on a formula simplification. DAG size of input: 502 DAG size of output: 334 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:52:06,987 WARN L233 SmtUtils]: Spent 5.97s on a formula simplification. DAG size of input: 512 DAG size of output: 311 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:52:20,366 WARN L233 SmtUtils]: Spent 8.13s on a formula simplification. DAG size of input: 567 DAG size of output: 396 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:52:25,985 WARN L233 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 569 DAG size of output: 332 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:52:31,567 WARN L233 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 565 DAG size of output: 328 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:52:42,311 WARN L233 SmtUtils]: Spent 5.82s on a formula simplification. DAG size of input: 473 DAG size of output: 268 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:52:49,574 WARN L233 SmtUtils]: Spent 6.78s on a formula simplification. DAG size of input: 495 DAG size of output: 272 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:53:28,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [382336325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 05:53:28,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 05:53:28,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [4, 4, 4] total 51 [2022-11-19 05:53:28,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327051028] [2022-11-19 05:53:28,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 05:53:28,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-19 05:53:28,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 05:53:28,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-19 05:53:28,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=2418, Unknown=0, NotChecked=0, Total=2550 [2022-11-19 05:53:28,813 INFO L87 Difference]: Start difference. First operand 228 states and 324 transitions. Second operand has 46 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 28 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-19 05:54:30,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 05:54:30,777 INFO L93 Difference]: Finished difference Result 632 states and 984 transitions. [2022-11-19 05:54:30,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-19 05:54:30,778 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 28 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 70 [2022-11-19 05:54:30,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 05:54:30,781 INFO L225 Difference]: With dead ends: 632 [2022-11-19 05:54:30,782 INFO L226 Difference]: Without dead ends: 422 [2022-11-19 05:54:30,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 161 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 800 ImplicationChecksByTransitivity, 179.3s TimeCoverageRelationStatistics Valid=207, Invalid=3575, Unknown=0, NotChecked=0, Total=3782 [2022-11-19 05:54:30,784 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 298 mSDsluCounter, 5737 mSDsCounter, 0 mSdLazyCounter, 7070 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 6006 SdHoareTripleChecker+Invalid, 7101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 7070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.9s IncrementalHoareTripleChecker+Time [2022-11-19 05:54:30,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 6006 Invalid, 7101 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [31 Valid, 7070 Invalid, 0 Unknown, 0 Unchecked, 27.9s Time] [2022-11-19 05:54:30,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-11-19 05:54:30,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 317. [2022-11-19 05:54:30,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 213 states have (on average 1.4366197183098592) internal successors, (306), 217 states have internal predecessors, (306), 76 states have call successors, (76), 30 states have call predecessors, (76), 27 states have return successors, (75), 71 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-19 05:54:30,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 457 transitions. [2022-11-19 05:54:30,941 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 457 transitions. Word has length 70 [2022-11-19 05:54:30,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 05:54:30,942 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 457 transitions. [2022-11-19 05:54:30,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 28 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-19 05:54:30,943 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 457 transitions. [2022-11-19 05:54:30,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-19 05:54:30,945 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 05:54:30,945 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 05:54:30,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 05:54:31,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 05:54:31,151 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 05:54:31,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 05:54:31,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1881005201, now seen corresponding path program 1 times [2022-11-19 05:54:31,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 05:54:31,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771073618] [2022-11-19 05:54:31,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 05:54:31,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 05:54:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 05:54:31,253 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 05:54:31,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 05:54:31,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771073618] [2022-11-19 05:54:31,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771073618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 05:54:31,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 05:54:31,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 05:54:31,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089470981] [2022-11-19 05:54:31,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 05:54:31,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 05:54:31,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 05:54:31,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 05:54:31,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 05:54:31,257 INFO L87 Difference]: Start difference. First operand 317 states and 457 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 05:54:31,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 05:54:31,604 INFO L93 Difference]: Finished difference Result 721 states and 1070 transitions. [2022-11-19 05:54:31,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 05:54:31,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 75 [2022-11-19 05:54:31,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 05:54:31,608 INFO L225 Difference]: With dead ends: 721 [2022-11-19 05:54:31,608 INFO L226 Difference]: Without dead ends: 442 [2022-11-19 05:54:31,609 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 [2022-11-19 05:54:31,610 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 57 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 05:54:31,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 434 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 05:54:31,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2022-11-19 05:54:31,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 435. [2022-11-19 05:54:31,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 300 states have (on average 1.4666666666666666) internal successors, (440), 304 states have internal predecessors, (440), 107 states have call successors, (107), 30 states have call predecessors, (107), 27 states have return successors, (106), 102 states have call predecessors, (106), 106 states have call successors, (106) [2022-11-19 05:54:31,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 653 transitions. [2022-11-19 05:54:31,799 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 653 transitions. Word has length 75 [2022-11-19 05:54:31,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 05:54:31,801 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 653 transitions. [2022-11-19 05:54:31,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 05:54:31,801 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 653 transitions. [2022-11-19 05:54:31,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-19 05:54:31,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 05:54:31,804 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 05:54:31,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 05:54:31,805 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 05:54:31,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 05:54:31,805 INFO L85 PathProgramCache]: Analyzing trace with hash 241229206, now seen corresponding path program 1 times [2022-11-19 05:54:31,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 05:54:31,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256619052] [2022-11-19 05:54:31,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 05:54:31,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 05:54:31,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 05:54:31,936 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 05:54:31,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 05:54:31,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256619052] [2022-11-19 05:54:31,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256619052] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 05:54:31,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569234709] [2022-11-19 05:54:31,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 05:54:31,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 05:54:31,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 05:54:31,939 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 05:54:31,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 05:54:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 05:54:32,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 05:54:32,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 05:54:32,288 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 05:54:32,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 05:54:32,359 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 05:54:32,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569234709] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 05:54:32,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1346434142] [2022-11-19 05:54:32,363 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2022-11-19 05:54:32,364 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 05:54:32,364 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 05:54:32,365 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 05:54:32,365 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 05:55:06,440 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-19 05:55:06,720 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 444 for LOIs [2022-11-19 05:55:06,999 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 05:55:21,489 WARN L233 SmtUtils]: Spent 6.32s on a formula simplification. DAG size of input: 444 DAG size of output: 308 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:55:28,229 WARN L233 SmtUtils]: Spent 6.64s on a formula simplification. DAG size of input: 467 DAG size of output: 328 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:55:35,108 WARN L233 SmtUtils]: Spent 6.00s on a formula simplification. DAG size of input: 444 DAG size of output: 328 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:55:41,611 WARN L233 SmtUtils]: Spent 6.37s on a formula simplification. DAG size of input: 467 DAG size of output: 348 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:55:47,323 WARN L233 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 468 DAG size of output: 303 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:56:03,569 WARN L233 SmtUtils]: Spent 5.91s on a formula simplification. DAG size of input: 502 DAG size of output: 334 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:56:10,859 WARN L233 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 512 DAG size of output: 311 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:56:18,569 WARN L233 SmtUtils]: Spent 7.42s on a formula simplification. DAG size of input: 568 DAG size of output: 327 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:56:25,470 WARN L233 SmtUtils]: Spent 6.59s on a formula simplification. DAG size of input: 570 DAG size of output: 318 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:56:34,302 WARN L233 SmtUtils]: Spent 8.49s on a formula simplification. DAG size of input: 572 DAG size of output: 350 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:56:43,068 WARN L233 SmtUtils]: Spent 8.42s on a formula simplification. DAG size of input: 568 DAG size of output: 346 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:56:50,270 WARN L233 SmtUtils]: Spent 6.80s on a formula simplification. DAG size of input: 570 DAG size of output: 325 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:56:57,422 WARN L233 SmtUtils]: Spent 6.75s on a formula simplification. DAG size of input: 566 DAG size of output: 321 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:57:01,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1346434142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 05:57:01,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 05:57:01,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-19 05:57:01,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212699106] [2022-11-19 05:57:01,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 05:57:01,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-19 05:57:01,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 05:57:01,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-19 05:57:01,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=755, Unknown=0, NotChecked=0, Total=870 [2022-11-19 05:57:01,558 INFO L87 Difference]: Start difference. First operand 435 states and 653 transitions. Second operand has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-19 05:57:08,571 WARN L233 SmtUtils]: Spent 5.36s on a formula simplification. DAG size of input: 376 DAG size of output: 353 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:57:13,834 WARN L233 SmtUtils]: Spent 5.06s on a formula simplification. DAG size of input: 379 DAG size of output: 321 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:57:19,272 WARN L233 SmtUtils]: Spent 5.25s on a formula simplification. DAG size of input: 365 DAG size of output: 359 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:57:24,688 WARN L233 SmtUtils]: Spent 5.22s on a formula simplification. DAG size of input: 361 DAG size of output: 355 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:57:30,698 WARN L233 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 384 DAG size of output: 356 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:57:36,695 WARN L233 SmtUtils]: Spent 5.71s on a formula simplification. DAG size of input: 380 DAG size of output: 352 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:57:52,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 05:57:52,453 INFO L93 Difference]: Finished difference Result 843 states and 1303 transitions. [2022-11-19 05:57:52,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-19 05:57:52,454 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 76 [2022-11-19 05:57:52,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 05:57:52,457 INFO L225 Difference]: With dead ends: 843 [2022-11-19 05:57:52,458 INFO L226 Difference]: Without dead ends: 533 [2022-11-19 05:57:52,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 154.4s TimeCoverageRelationStatistics Valid=200, Invalid=1206, Unknown=0, NotChecked=0, Total=1406 [2022-11-19 05:57:52,460 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 222 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 2317 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 3258 SdHoareTripleChecker+Invalid, 2343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-19 05:57:52,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 3258 Invalid, 2343 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 2317 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2022-11-19 05:57:52,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2022-11-19 05:57:52,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 463. [2022-11-19 05:57:52,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 325 states have (on average 1.4646153846153847) internal successors, (476), 330 states have internal predecessors, (476), 109 states have call successors, (109), 31 states have call predecessors, (109), 28 states have return successors, (108), 103 states have call predecessors, (108), 108 states have call successors, (108) [2022-11-19 05:57:52,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 693 transitions. [2022-11-19 05:57:52,712 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 693 transitions. Word has length 76 [2022-11-19 05:57:52,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 05:57:52,712 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 693 transitions. [2022-11-19 05:57:52,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-19 05:57:52,713 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 693 transitions. [2022-11-19 05:57:52,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-19 05:57:52,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 05:57:52,715 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 05:57:52,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-19 05:57:52,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 05:57:52,923 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 05:57:52,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 05:57:52,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1997128962, now seen corresponding path program 1 times [2022-11-19 05:57:52,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 05:57:52,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67527214] [2022-11-19 05:57:52,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 05:57:52,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 05:57:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 05:57:53,139 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 05:57:53,140 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 05:57:53,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67527214] [2022-11-19 05:57:53,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67527214] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 05:57:53,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297737720] [2022-11-19 05:57:53,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 05:57:53,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 05:57:53,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 05:57:53,143 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 05:57:53,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 05:57:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 05:57:53,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 1135 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 05:57:53,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 05:57:53,514 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 05:57:53,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 05:57:53,592 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 05:57:53,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297737720] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 05:57:53,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [289649133] [2022-11-19 05:57:53,605 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-11-19 05:57:53,605 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 05:57:53,606 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 05:57:53,607 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 05:57:53,607 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 05:58:27,501 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-19 05:58:27,777 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 231 for LOIs [2022-11-19 05:58:27,840 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 230 for LOIs [2022-11-19 05:58:27,901 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 230 for LOIs [2022-11-19 05:58:29,164 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 213 for LOIs [2022-11-19 05:58:29,223 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 210 for LOIs [2022-11-19 05:58:29,253 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-11-19 05:58:29,536 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 230 for LOIs [2022-11-19 05:58:30,088 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 240 for LOIs [2022-11-19 05:58:33,599 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 211 for LOIs [2022-11-19 05:58:33,629 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 220 for LOIs [2022-11-19 05:58:33,735 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 202 for LOIs [2022-11-19 05:58:33,764 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 05:58:47,902 WARN L233 SmtUtils]: Spent 6.01s on a formula simplification. DAG size of input: 443 DAG size of output: 327 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:58:54,406 WARN L233 SmtUtils]: Spent 6.40s on a formula simplification. DAG size of input: 466 DAG size of output: 347 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:59:01,612 WARN L233 SmtUtils]: Spent 6.32s on a formula simplification. DAG size of input: 448 DAG size of output: 305 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:59:08,307 WARN L233 SmtUtils]: Spent 6.55s on a formula simplification. DAG size of input: 471 DAG size of output: 325 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:59:14,015 WARN L233 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 468 DAG size of output: 303 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:59:30,250 WARN L233 SmtUtils]: Spent 5.90s on a formula simplification. DAG size of input: 502 DAG size of output: 334 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:59:37,536 WARN L233 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 512 DAG size of output: 311 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 05:59:47,717 WARN L233 SmtUtils]: Spent 5.52s on a formula simplification. DAG size of input: 527 DAG size of output: 325 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:00:44,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [289649133] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:00:44,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:00:44,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [55] imperfect sequences [4, 4, 4] total 61 [2022-11-19 06:00:45,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867977438] [2022-11-19 06:00:45,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:00:45,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-11-19 06:00:45,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:00:45,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-11-19 06:00:45,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=3502, Unknown=0, NotChecked=0, Total=3660 [2022-11-19 06:00:45,003 INFO L87 Difference]: Start difference. First operand 463 states and 693 transitions. Second operand has 56 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 32 states have internal predecessors, (40), 18 states have call successors, (18), 13 states have call predecessors, (18), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 06:01:57,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:01:57,885 INFO L93 Difference]: Finished difference Result 948 states and 1446 transitions. [2022-11-19 06:01:57,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-11-19 06:01:57,886 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 32 states have internal predecessors, (40), 18 states have call successors, (18), 13 states have call predecessors, (18), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 79 [2022-11-19 06:01:57,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:01:57,890 INFO L225 Difference]: With dead ends: 948 [2022-11-19 06:01:57,890 INFO L226 Difference]: Without dead ends: 638 [2022-11-19 06:01:57,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 179 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1161 ImplicationChecksByTransitivity, 170.6s TimeCoverageRelationStatistics Valid=267, Invalid=5433, Unknown=0, NotChecked=0, Total=5700 [2022-11-19 06:01:57,894 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 277 mSDsluCounter, 5898 mSDsCounter, 0 mSdLazyCounter, 8578 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 6149 SdHoareTripleChecker+Invalid, 8614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 8578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.5s IncrementalHoareTripleChecker+Time [2022-11-19 06:01:57,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 6149 Invalid, 8614 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [36 Valid, 8578 Invalid, 0 Unknown, 0 Unchecked, 32.5s Time] [2022-11-19 06:01:57,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-11-19 06:01:58,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 545. [2022-11-19 06:01:58,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 388 states have (on average 1.4510309278350515) internal successors, (563), 395 states have internal predecessors, (563), 121 states have call successors, (121), 41 states have call predecessors, (121), 35 states have return successors, (120), 110 states have call predecessors, (120), 120 states have call successors, (120) [2022-11-19 06:01:58,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 804 transitions. [2022-11-19 06:01:58,249 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 804 transitions. Word has length 79 [2022-11-19 06:01:58,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:01:58,249 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 804 transitions. [2022-11-19 06:01:58,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 32 states have internal predecessors, (40), 18 states have call successors, (18), 13 states have call predecessors, (18), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 06:01:58,250 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 804 transitions. [2022-11-19 06:01:58,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-19 06:01:58,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:01:58,253 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:01:58,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-19 06:01:58,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:01:58,460 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:01:58,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:01:58,461 INFO L85 PathProgramCache]: Analyzing trace with hash -577991141, now seen corresponding path program 1 times [2022-11-19 06:01:58,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:01:58,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950372248] [2022-11-19 06:01:58,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:01:58,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:01:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:01:58,664 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-19 06:01:58,664 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:01:58,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950372248] [2022-11-19 06:01:58,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950372248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:01:58,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:01:58,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:01:58,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416070425] [2022-11-19 06:01:58,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:01:58,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:01:58,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:01:58,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:01:58,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:01:58,667 INFO L87 Difference]: Start difference. First operand 545 states and 804 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 06:01:59,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:01:59,281 INFO L93 Difference]: Finished difference Result 666 states and 955 transitions. [2022-11-19 06:01:59,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:01:59,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 81 [2022-11-19 06:01:59,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:01:59,285 INFO L225 Difference]: With dead ends: 666 [2022-11-19 06:01:59,285 INFO L226 Difference]: Without dead ends: 587 [2022-11-19 06:01:59,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:01:59,287 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 142 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:01:59,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 293 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:01:59,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2022-11-19 06:01:59,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 584. [2022-11-19 06:01:59,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 407 states have (on average 1.434889434889435) internal successors, (584), 417 states have internal predecessors, (584), 133 states have call successors, (133), 51 states have call predecessors, (133), 43 states have return successors, (131), 118 states have call predecessors, (131), 131 states have call successors, (131) [2022-11-19 06:01:59,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 848 transitions. [2022-11-19 06:01:59,772 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 848 transitions. Word has length 81 [2022-11-19 06:01:59,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:01:59,773 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 848 transitions. [2022-11-19 06:01:59,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 06:01:59,773 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 848 transitions. [2022-11-19 06:01:59,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-19 06:01:59,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:01:59,778 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:01:59,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 06:01:59,778 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:01:59,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:01:59,779 INFO L85 PathProgramCache]: Analyzing trace with hash 161689538, now seen corresponding path program 1 times [2022-11-19 06:01:59,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:01:59,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538096232] [2022-11-19 06:01:59,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:01:59,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:01:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:01:59,937 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-19 06:01:59,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:01:59,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538096232] [2022-11-19 06:01:59,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538096232] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:01:59,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158153874] [2022-11-19 06:01:59,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:01:59,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:01:59,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:01:59,939 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:01:59,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0889d8f9-0e85-422c-aed8-9adfae0f0645/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 06:02:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:02:00,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 1356 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 06:02:00,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:02:00,332 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-19 06:02:00,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:02:00,452 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-19 06:02:00,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158153874] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:02:00,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1149609449] [2022-11-19 06:02:00,456 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2022-11-19 06:02:00,456 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:02:00,456 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:02:00,457 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:02:00,457 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:02:58,180 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-19 06:02:58,454 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-11-19 06:02:58,768 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 471 for LOIs [2022-11-19 06:03:49,071 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 451 for LOIs [2022-11-19 06:03:49,340 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 435 for LOIs [2022-11-19 06:03:52,319 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 263 for LOIs