./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product25.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_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/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_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/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_015e891a-8f5f-4276-8404-14f10a6f8b3c/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 c862f9fbd969695db1625134466cee856e407b57f937740cfce5c982a0b9c02a --- 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 07:12:25,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:12:25,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:12:25,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:12:25,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:12:25,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:12:25,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:12:25,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:12:25,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:12:25,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:12:25,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:12:25,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:12:25,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:12:25,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:12:25,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:12:25,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:12:25,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:12:25,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:12:25,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:12:25,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:12:25,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:12:25,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:12:25,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:12:25,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:12:25,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:12:25,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:12:25,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:12:25,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:12:25,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:12:25,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:12:25,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:12:25,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:12:25,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:12:25,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:12:25,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:12:25,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:12:25,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:12:25,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:12:25,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:12:25,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:12:25,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:12:25,804 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:12:25,845 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:12:25,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:12:25,846 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:12:25,847 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:12:25,848 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:12:25,848 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:12:25,848 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:12:25,848 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:12:25,849 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:12:25,849 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:12:25,850 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:12:25,850 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:12:25,850 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:12:25,850 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:12:25,851 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:12:25,851 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:12:25,851 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:12:25,851 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:12:25,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:12:25,852 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:12:25,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:12:25,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:12:25,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:12:25,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:12:25,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:12:25,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:12:25,855 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:12:25,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:12:25,856 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:12:25,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:12:25,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:12:25,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:12:25,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:12:25,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:12:25,857 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:12:25,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:12:25,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:12:25,858 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:12:25,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:12:25,858 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:12:25,858 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:12:25,859 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_015e891a-8f5f-4276-8404-14f10a6f8b3c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c862f9fbd969695db1625134466cee856e407b57f937740cfce5c982a0b9c02a [2022-11-19 07:12:26,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:12:26,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:12:26,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:12:26,227 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:12:26,228 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:12:26,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/email_spec27_product25.cil.c [2022-11-19 07:12:26,327 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS/data/a4229262d/68062362d7b144ba8a61aa6e6f5dbd01/FLAG753a50145 [2022-11-19 07:12:26,991 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:12:26,992 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/sv-benchmarks/c/product-lines/email_spec27_product25.cil.c [2022-11-19 07:12:27,011 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS/data/a4229262d/68062362d7b144ba8a61aa6e6f5dbd01/FLAG753a50145 [2022-11-19 07:12:27,191 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS/data/a4229262d/68062362d7b144ba8a61aa6e6f5dbd01 [2022-11-19 07:12:27,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:12:27,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:12:27,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:12:27,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:12:27,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:12:27,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:12:27" (1/1) ... [2022-11-19 07:12:27,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d86fbfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:27, skipping insertion in model container [2022-11-19 07:12:27,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:12:27" (1/1) ... [2022-11-19 07:12:27,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:12:27,295 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:12:27,925 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_015e891a-8f5f-4276-8404-14f10a6f8b3c/sv-benchmarks/c/product-lines/email_spec27_product25.cil.c[58911,58924] [2022-11-19 07:12:27,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:12:27,963 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:12:28,069 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_015e891a-8f5f-4276-8404-14f10a6f8b3c/sv-benchmarks/c/product-lines/email_spec27_product25.cil.c[58911,58924] [2022-11-19 07:12:28,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:12:28,109 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:12:28,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:28 WrapperNode [2022-11-19 07:12:28,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:12:28,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:12:28,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:12:28,112 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:12:28,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:28" (1/1) ... [2022-11-19 07:12:28,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:28" (1/1) ... [2022-11-19 07:12:28,229 INFO L138 Inliner]: procedures = 130, calls = 219, calls flagged for inlining = 59, calls inlined = 56, statements flattened = 1027 [2022-11-19 07:12:28,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:12:28,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:12:28,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:12:28,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:12:28,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:28" (1/1) ... [2022-11-19 07:12:28,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:28" (1/1) ... [2022-11-19 07:12:28,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:28" (1/1) ... [2022-11-19 07:12:28,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:28" (1/1) ... [2022-11-19 07:12:28,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:28" (1/1) ... [2022-11-19 07:12:28,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:28" (1/1) ... [2022-11-19 07:12:28,326 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:28" (1/1) ... [2022-11-19 07:12:28,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:28" (1/1) ... [2022-11-19 07:12:28,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:12:28,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:12:28,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:12:28,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:12:28,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:28" (1/1) ... [2022-11-19 07:12:28,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:12:28,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:12:28,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:12:28,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:12:28,462 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-19 07:12:28,463 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-19 07:12:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-19 07:12:28,463 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-19 07:12:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2022-11-19 07:12:28,464 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2022-11-19 07:12:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-19 07:12:28,464 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-19 07:12:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-19 07:12:28,464 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-19 07:12:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-19 07:12:28,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-19 07:12:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-19 07:12:28,465 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-19 07:12:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-19 07:12:28,465 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-19 07:12:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-19 07:12:28,466 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-19 07:12:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-19 07:12:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-19 07:12:28,466 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-19 07:12:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-19 07:12:28,467 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-19 07:12:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:12:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-19 07:12:28,467 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-19 07:12:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-19 07:12:28,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-19 07:12:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-19 07:12:28,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-19 07:12:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-19 07:12:28,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-19 07:12:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-19 07:12:28,469 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-19 07:12:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2022-11-19 07:12:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2022-11-19 07:12:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-19 07:12:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-19 07:12:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-19 07:12:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-19 07:12:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-19 07:12:28,471 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-19 07:12:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-19 07:12:28,471 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-19 07:12:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:12:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-19 07:12:28,473 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-19 07:12:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-19 07:12:28,474 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-19 07:12:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:12:28,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:12:28,762 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:12:28,765 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:12:29,881 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:12:30,461 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:12:30,461 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:12:30,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:12:30 BoogieIcfgContainer [2022-11-19 07:12:30,465 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:12:30,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:12:30,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:12:30,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:12:30,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:12:27" (1/3) ... [2022-11-19 07:12:30,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2570cad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:12:30, skipping insertion in model container [2022-11-19 07:12:30,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:28" (2/3) ... [2022-11-19 07:12:30,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2570cad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:12:30, skipping insertion in model container [2022-11-19 07:12:30,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:12:30" (3/3) ... [2022-11-19 07:12:30,476 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product25.cil.c [2022-11-19 07:12:30,496 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:12:30,496 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:12:30,589 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:12:30,596 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;@6510616d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:12:30,596 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:12:30,602 INFO L276 IsEmpty]: Start isEmpty. Operand has 193 states, 110 states have (on average 1.309090909090909) internal successors, (144), 113 states have internal predecessors, (144), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2022-11-19 07:12:30,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-19 07:12:30,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:12:30,632 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:12:30,633 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:12:30,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:12:30,638 INFO L85 PathProgramCache]: Analyzing trace with hash -205385551, now seen corresponding path program 1 times [2022-11-19 07:12:30,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:12:30,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007294479] [2022-11-19 07:12:30,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:30,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:12:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:31,109 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 07:12:31,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:12:31,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007294479] [2022-11-19 07:12:31,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007294479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:12:31,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:12:31,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:12:31,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661566720] [2022-11-19 07:12:31,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:12:31,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:12:31,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:12:31,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:12:31,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:12:31,163 INFO L87 Difference]: Start difference. First operand has 193 states, 110 states have (on average 1.309090909090909) internal successors, (144), 113 states have internal predecessors, (144), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 07:12:31,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:12:31,343 INFO L93 Difference]: Finished difference Result 294 states and 391 transitions. [2022-11-19 07:12:31,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:12:31,346 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 75 [2022-11-19 07:12:31,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:12:31,358 INFO L225 Difference]: With dead ends: 294 [2022-11-19 07:12:31,358 INFO L226 Difference]: Without dead ends: 190 [2022-11-19 07:12:31,362 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 07:12:31,368 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:12:31,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 218 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:12:31,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-11-19 07:12:31,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2022-11-19 07:12:31,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 108 states have (on average 1.2777777777777777) internal successors, (138), 110 states have internal predecessors, (138), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-11-19 07:12:31,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 253 transitions. [2022-11-19 07:12:31,470 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 253 transitions. Word has length 75 [2022-11-19 07:12:31,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:12:31,472 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 253 transitions. [2022-11-19 07:12:31,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 07:12:31,474 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 253 transitions. [2022-11-19 07:12:31,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-19 07:12:31,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:12:31,486 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:12:31,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:12:31,486 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:12:31,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:12:31,487 INFO L85 PathProgramCache]: Analyzing trace with hash 15869439, now seen corresponding path program 1 times [2022-11-19 07:12:31,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:12:31,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633575153] [2022-11-19 07:12:31,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:31,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:12:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:31,770 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 07:12:31,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:12:31,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633575153] [2022-11-19 07:12:31,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633575153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:12:31,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:12:31,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:12:31,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709482628] [2022-11-19 07:12:31,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:12:31,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:12:31,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:12:31,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:12:31,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:12:31,775 INFO L87 Difference]: Start difference. First operand 190 states and 253 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 07:12:31,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:12:31,957 INFO L93 Difference]: Finished difference Result 290 states and 376 transitions. [2022-11-19 07:12:31,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:12:31,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 76 [2022-11-19 07:12:31,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:12:31,960 INFO L225 Difference]: With dead ends: 290 [2022-11-19 07:12:31,961 INFO L226 Difference]: Without dead ends: 192 [2022-11-19 07:12:31,962 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 07:12:31,963 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 0 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:12:31,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 429 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:12:31,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-11-19 07:12:31,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2022-11-19 07:12:31,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 110 states have (on average 1.2727272727272727) internal successors, (140), 112 states have internal predecessors, (140), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-11-19 07:12:31,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 255 transitions. [2022-11-19 07:12:31,986 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 255 transitions. Word has length 76 [2022-11-19 07:12:31,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:12:31,986 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 255 transitions. [2022-11-19 07:12:31,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 07:12:31,993 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 255 transitions. [2022-11-19 07:12:31,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-19 07:12:31,995 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:12:31,996 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, 1, 1] [2022-11-19 07:12:31,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:12:31,996 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:12:32,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:12:32,007 INFO L85 PathProgramCache]: Analyzing trace with hash -286883552, now seen corresponding path program 1 times [2022-11-19 07:12:32,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:12:32,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329935712] [2022-11-19 07:12:32,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:32,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:12:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:32,153 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 07:12:32,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:12:32,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329935712] [2022-11-19 07:12:32,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329935712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:12:32,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:12:32,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:12:32,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031339912] [2022-11-19 07:12:32,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:12:32,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:12:32,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:12:32,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:12:32,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:12:32,156 INFO L87 Difference]: Start difference. First operand 192 states and 255 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 07:12:32,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:12:32,282 INFO L93 Difference]: Finished difference Result 419 states and 577 transitions. [2022-11-19 07:12:32,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:12:32,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 81 [2022-11-19 07:12:32,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:12:32,285 INFO L225 Difference]: With dead ends: 419 [2022-11-19 07:12:32,285 INFO L226 Difference]: Without dead ends: 245 [2022-11-19 07:12:32,286 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 07:12:32,288 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 59 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:12:32,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 441 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:12:32,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2022-11-19 07:12:32,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 240. [2022-11-19 07:12:32,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 144 states have (on average 1.3541666666666667) internal successors, (195), 146 states have internal predecessors, (195), 72 states have call successors, (72), 23 states have call predecessors, (72), 23 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-19 07:12:32,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 338 transitions. [2022-11-19 07:12:32,315 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 338 transitions. Word has length 81 [2022-11-19 07:12:32,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:12:32,316 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 338 transitions. [2022-11-19 07:12:32,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 07:12:32,316 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 338 transitions. [2022-11-19 07:12:32,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-19 07:12:32,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:12:32,318 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, 1, 1, 1] [2022-11-19 07:12:32,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:12:32,318 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:12:32,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:12:32,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1015518215, now seen corresponding path program 1 times [2022-11-19 07:12:32,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:12:32,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198599854] [2022-11-19 07:12:32,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:32,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:12:32,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:32,526 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 07:12:32,527 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:12:32,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198599854] [2022-11-19 07:12:32,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198599854] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:12:32,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461343177] [2022-11-19 07:12:32,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:32,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:12:32,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:12:32,535 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:12:32,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:12:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:32,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 1080 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:12:32,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:12:32,988 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 07:12:32,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:12:33,089 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 07:12:33,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461343177] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:12:33,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [238844794] [2022-11-19 07:12:33,119 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-19 07:12:33,123 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:12:33,129 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:12:33,136 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:12:33,140 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:13:00,871 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-11-19 07:13:01,161 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-19 07:13:01,529 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:13:14,980 WARN L233 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 440 DAG size of output: 239 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:13:20,484 WARN L233 SmtUtils]: Spent 5.40s on a formula simplification. DAG size of input: 463 DAG size of output: 259 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:13:50,728 WARN L233 SmtUtils]: Spent 5.79s on a formula simplification. DAG size of input: 498 DAG size of output: 324 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:13:58,383 WARN L233 SmtUtils]: Spent 6.26s on a formula simplification. DAG size of input: 508 DAG size of output: 321 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:14:09,609 WARN L233 SmtUtils]: Spent 10.86s on a formula simplification. DAG size of input: 579 DAG size of output: 328 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:14:16,802 WARN L233 SmtUtils]: Spent 6.89s on a formula simplification. DAG size of input: 564 DAG size of output: 318 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:14:24,957 WARN L233 SmtUtils]: Spent 7.83s on a formula simplification. DAG size of input: 566 DAG size of output: 334 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:14:32,982 WARN L233 SmtUtils]: Spent 7.68s on a formula simplification. DAG size of input: 562 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:14:34,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [238844794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:14:34,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:14:34,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-11-19 07:14:34,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763004623] [2022-11-19 07:14:34,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:14:34,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-19 07:14:34,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:14:34,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-19 07:14:34,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-11-19 07:14:34,307 INFO L87 Difference]: Start difference. First operand 240 states and 338 transitions. Second operand has 21 states, 16 states have (on average 2.6875) internal successors, (43), 15 states have internal predecessors, (43), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2022-11-19 07:14:42,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:14:42,190 INFO L93 Difference]: Finished difference Result 527 states and 776 transitions. [2022-11-19 07:14:42,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-19 07:14:42,190 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.6875) internal successors, (43), 15 states have internal predecessors, (43), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) Word has length 82 [2022-11-19 07:14:42,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:14:42,193 INFO L225 Difference]: With dead ends: 527 [2022-11-19 07:14:42,194 INFO L226 Difference]: Without dead ends: 305 [2022-11-19 07:14:42,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 92.8s TimeCoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-11-19 07:14:42,198 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 98 mSDsluCounter, 2920 mSDsCounter, 0 mSdLazyCounter, 1835 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 3160 SdHoareTripleChecker+Invalid, 1845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:14:42,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 3160 Invalid, 1845 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 1835 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2022-11-19 07:14:42,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-11-19 07:14:42,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 263. [2022-11-19 07:14:42,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 166 states have (on average 1.3734939759036144) internal successors, (228), 168 states have internal predecessors, (228), 72 states have call successors, (72), 24 states have call predecessors, (72), 24 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-19 07:14:42,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 371 transitions. [2022-11-19 07:14:42,317 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 371 transitions. Word has length 82 [2022-11-19 07:14:42,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:14:42,317 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 371 transitions. [2022-11-19 07:14:42,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.6875) internal successors, (43), 15 states have internal predecessors, (43), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2022-11-19 07:14:42,318 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 371 transitions. [2022-11-19 07:14:42,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-19 07:14:42,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:14:42,320 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:14:42,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:14:42,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:14:42,529 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:14:42,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:14:42,529 INFO L85 PathProgramCache]: Analyzing trace with hash -786179386, now seen corresponding path program 1 times [2022-11-19 07:14:42,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:14:42,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918036201] [2022-11-19 07:14:42,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:14:42,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:14:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:14:42,684 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 07:14:42,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:14:42,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918036201] [2022-11-19 07:14:42,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918036201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:14:42,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:14:42,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:14:42,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889893972] [2022-11-19 07:14:42,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:14:42,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:14:42,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:14:42,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:14:42,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:14:42,691 INFO L87 Difference]: Start difference. First operand 263 states and 371 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-19 07:14:42,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:14:42,964 INFO L93 Difference]: Finished difference Result 629 states and 922 transitions. [2022-11-19 07:14:42,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:14:42,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 87 [2022-11-19 07:14:42,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:14:42,968 INFO L225 Difference]: With dead ends: 629 [2022-11-19 07:14:42,968 INFO L226 Difference]: Without dead ends: 390 [2022-11-19 07:14:42,969 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 07:14:42,970 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 57 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:14:42,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 455 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:14:42,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-11-19 07:14:43,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 385. [2022-11-19 07:14:43,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 257 states have (on average 1.4319066147859922) internal successors, (368), 259 states have internal predecessors, (368), 103 states have call successors, (103), 24 states have call predecessors, (103), 24 states have return successors, (102), 101 states have call predecessors, (102), 102 states have call successors, (102) [2022-11-19 07:14:43,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 573 transitions. [2022-11-19 07:14:43,136 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 573 transitions. Word has length 87 [2022-11-19 07:14:43,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:14:43,137 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 573 transitions. [2022-11-19 07:14:43,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-19 07:14:43,137 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 573 transitions. [2022-11-19 07:14:43,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-19 07:14:43,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:14:43,140 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:14:43,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:14:43,141 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:14:43,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:14:43,141 INFO L85 PathProgramCache]: Analyzing trace with hash 353802608, now seen corresponding path program 1 times [2022-11-19 07:14:43,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:14:43,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492527742] [2022-11-19 07:14:43,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:14:43,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:14:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:14:43,281 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 07:14:43,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:14:43,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492527742] [2022-11-19 07:14:43,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492527742] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:14:43,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843188987] [2022-11-19 07:14:43,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:14:43,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:14:43,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:14:43,284 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:14:43,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:14:43,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:14:43,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:14:43,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:14:43,674 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 07:14:43,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:14:43,758 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 07:14:43,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843188987] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:14:43,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1632929708] [2022-11-19 07:14:43,762 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2022-11-19 07:14:43,762 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:14:43,763 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:14:43,763 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:14:43,764 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:15:20,042 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-19 07:15:20,387 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 254 for LOIs [2022-11-19 07:15:22,178 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 232 for LOIs [2022-11-19 07:15:22,241 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-11-19 07:15:22,708 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 256 for LOIs [2022-11-19 07:15:26,917 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 237 for LOIs [2022-11-19 07:15:26,988 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Keys with input of size 264 for LOIs [2022-11-19 07:15:32,444 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 438 for LOIs [2022-11-19 07:15:32,693 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 246 for LOIs [2022-11-19 07:15:32,732 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 480 for LOIs [2022-11-19 07:15:34,852 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:16:19,806 WARN L233 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 498 DAG size of output: 324 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:16:27,232 WARN L233 SmtUtils]: Spent 6.17s on a formula simplification. DAG size of input: 508 DAG size of output: 321 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:16:40,255 WARN L233 SmtUtils]: Spent 12.69s on a formula simplification. DAG size of input: 587 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:16:59,943 WARN L233 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 480 DAG size of output: 270 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:17:39,067 WARN L233 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 501 DAG size of output: 342 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:17:45,460 WARN L233 SmtUtils]: Spent 5.74s on a formula simplification. DAG size of input: 517 DAG size of output: 358 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:18:01,460 WARN L233 SmtUtils]: Spent 8.49s on a formula simplification. DAG size of input: 537 DAG size of output: 376 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:18:07,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1632929708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:18:07,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:18:07,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [4, 4, 4] total 58 [2022-11-19 07:18:07,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406948953] [2022-11-19 07:18:07,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:18:07,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-11-19 07:18:07,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:18:07,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-11-19 07:18:07,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=3128, Unknown=0, NotChecked=0, Total=3306 [2022-11-19 07:18:07,208 INFO L87 Difference]: Start difference. First operand 385 states and 573 transitions. Second operand has 53 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 32 states have internal predecessors, (46), 17 states have call successors, (19), 11 states have call predecessors, (19), 8 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2022-11-19 07:18:17,148 WARN L233 SmtUtils]: Spent 6.81s on a formula simplification. DAG size of input: 413 DAG size of output: 370 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:19:22,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:19:22,045 INFO L93 Difference]: Finished difference Result 881 states and 1348 transitions. [2022-11-19 07:19:22,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-11-19 07:19:22,049 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 32 states have internal predecessors, (46), 17 states have call successors, (19), 11 states have call predecessors, (19), 8 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) Word has length 88 [2022-11-19 07:19:22,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:19:22,053 INFO L225 Difference]: With dead ends: 881 [2022-11-19 07:19:22,054 INFO L226 Difference]: Without dead ends: 559 [2022-11-19 07:19:22,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 209 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1006 ImplicationChecksByTransitivity, 195.7s TimeCoverageRelationStatistics Valid=269, Invalid=4423, Unknown=0, NotChecked=0, Total=4692 [2022-11-19 07:19:22,057 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 293 mSDsluCounter, 4811 mSDsCounter, 0 mSdLazyCounter, 7276 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 5041 SdHoareTripleChecker+Invalid, 7309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 7276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:19:22,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 5041 Invalid, 7309 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [33 Valid, 7276 Invalid, 0 Unknown, 0 Unchecked, 30.6s Time] [2022-11-19 07:19:22,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-11-19 07:19:22,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 452. [2022-11-19 07:19:22,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 299 states have (on average 1.4080267558528428) internal successors, (421), 304 states have internal predecessors, (421), 121 states have call successors, (121), 33 states have call predecessors, (121), 31 states have return successors, (121), 114 states have call predecessors, (121), 120 states have call successors, (121) [2022-11-19 07:19:22,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 663 transitions. [2022-11-19 07:19:22,283 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 663 transitions. Word has length 88 [2022-11-19 07:19:22,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:19:22,284 INFO L495 AbstractCegarLoop]: Abstraction has 452 states and 663 transitions. [2022-11-19 07:19:22,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 32 states have internal predecessors, (46), 17 states have call successors, (19), 11 states have call predecessors, (19), 8 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2022-11-19 07:19:22,284 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 663 transitions. [2022-11-19 07:19:22,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-19 07:19:22,287 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:19:22,287 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:19:22,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-19 07:19:22,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-19 07:19:22,494 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:19:22,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:19:22,494 INFO L85 PathProgramCache]: Analyzing trace with hash 561557910, now seen corresponding path program 1 times [2022-11-19 07:19:22,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:19:22,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139225577] [2022-11-19 07:19:22,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:22,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:19:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:22,696 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 07:19:22,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:19:22,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139225577] [2022-11-19 07:19:22,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139225577] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:19:22,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163534227] [2022-11-19 07:19:22,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:22,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:19:22,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:19:22,710 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:19:22,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015e891a-8f5f-4276-8404-14f10a6f8b3c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:19:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:23,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 1216 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:19:23,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:19:23,096 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 07:19:23,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:19:23,183 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 07:19:23,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163534227] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:19:23,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1856195835] [2022-11-19 07:19:23,187 INFO L159 IcfgInterpreter]: Started Sifa with 80 locations of interest [2022-11-19 07:19:23,187 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:19:23,188 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:19:23,188 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:19:23,188 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:21:09,867 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-11-19 07:21:10,151 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 418 for LOIs [2022-11-19 07:21:10,429 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 415 for LOIs [2022-11-19 07:21:10,705 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 238 for LOIs [2022-11-19 07:21:12,053 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 211 for LOIs [2022-11-19 07:21:12,113 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 216 for LOIs [2022-11-19 07:21:12,148 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-19 07:21:12,433 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 238 for LOIs [2022-11-19 07:21:15,403 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 240 for LOIs [2022-11-19 07:21:15,450 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Keys with input of size 247 for LOIs [2022-11-19 07:21:19,532 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 389 for LOIs [2022-11-19 07:21:19,709 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 229 for LOIs [2022-11-19 07:21:19,748 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 431 for LOIs [2022-11-19 07:21:21,177 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:21:39,544 WARN L233 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 463 DAG size of output: 259 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:22:07,821 WARN L233 SmtUtils]: Spent 5.72s on a formula simplification. DAG size of input: 498 DAG size of output: 324 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:22:15,500 WARN L233 SmtUtils]: Spent 6.37s on a formula simplification. DAG size of input: 508 DAG size of output: 321 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:22:23,941 WARN L233 SmtUtils]: Spent 6.88s on a formula simplification. DAG size of input: 521 DAG size of output: 359 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:22:38,455 WARN L233 SmtUtils]: Spent 9.62s on a formula simplification. DAG size of input: 525 DAG size of output: 356 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:22:45,558 WARN L233 SmtUtils]: Spent 6.71s on a formula simplification. DAG size of input: 518 DAG size of output: 361 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:23:00,067 WARN L233 SmtUtils]: Spent 8.09s on a formula simplification. DAG size of input: 520 DAG size of output: 304 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:23:17,879 WARN L233 SmtUtils]: Spent 7.34s on a formula simplification. DAG size of input: 523 DAG size of output: 354 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:23:32,304 WARN L233 SmtUtils]: Spent 10.86s on a formula simplification. DAG size of input: 431 DAG size of output: 334 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:24:25,542 WARN L233 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 488 DAG size of output: 311 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:24:30,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1856195835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:24:30,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:24:30,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [4, 4, 4] total 63 [2022-11-19 07:24:30,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001103491] [2022-11-19 07:24:30,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:24:30,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-11-19 07:24:30,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:24:30,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-11-19 07:24:30,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=3730, Unknown=0, NotChecked=0, Total=3906 [2022-11-19 07:24:30,855 INFO L87 Difference]: Start difference. First operand 452 states and 663 transitions. Second operand has 58 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 32 states have internal predecessors, (46), 19 states have call successors, (21), 14 states have call predecessors, (21), 11 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-19 07:24:44,364 WARN L233 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 475 DAG size of output: 347 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:24:54,668 WARN L233 SmtUtils]: Spent 5.06s on a formula simplification. DAG size of input: 463 DAG size of output: 352 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:25:01,670 WARN L233 SmtUtils]: Spent 5.74s on a formula simplification. DAG size of input: 414 DAG size of output: 337 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:25:15,137 WARN L233 SmtUtils]: Spent 6.61s on a formula simplification. DAG size of input: 315 DAG size of output: 305 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)