./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V --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 6dc52251d8599495e3d1910510992bf3863620ce75312360a12a1bf3bdfb6242 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:41:23,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:41:23,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:41:23,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:41:23,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:41:23,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:41:23,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:41:23,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:41:23,655 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:41:23,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:41:23,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:41:23,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:41:23,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:41:23,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:41:23,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:41:23,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:41:23,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:41:23,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:41:23,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:41:23,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:41:23,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:41:23,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:41:23,678 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:41:23,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:41:23,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:41:23,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:41:23,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:41:23,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:41:23,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:41:23,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:41:23,687 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:41:23,688 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:41:23,689 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:41:23,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:41:23,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:41:23,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:41:23,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:41:23,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:41:23,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:41:23,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:41:23,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:41:23,697 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:41:23,722 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:41:23,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:41:23,723 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:41:23,723 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:41:23,724 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:41:23,724 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:41:23,725 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:41:23,725 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:41:23,726 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:41:23,726 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:41:23,726 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:41:23,727 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:41:23,727 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:41:23,727 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:41:23,728 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:41:23,728 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:41:23,729 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:41:23,729 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:41:23,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:41:23,730 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:41:23,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:41:23,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:41:23,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:41:23,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:41:23,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:41:23,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:41:23,731 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:41:23,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:41:23,732 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:41:23,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:41:23,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:41:23,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:41:23,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:41:23,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:41:23,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:41:23,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:41:23,734 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:41:23,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:41:23,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:41:23,735 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:41:23,735 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:41:23,735 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dc52251d8599495e3d1910510992bf3863620ce75312360a12a1bf3bdfb6242 [2021-11-23 02:41:23,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:41:24,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:41:24,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:41:24,006 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:41:24,007 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:41:24,008 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/email_spec9_product33.cil.c [2021-11-23 02:41:24,068 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/data/d0bd21e42/4cbfd57d0aa14d6292f8326092d6f511/FLAG4913d5730 [2021-11-23 02:41:24,699 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:41:24,700 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/sv-benchmarks/c/product-lines/email_spec9_product33.cil.c [2021-11-23 02:41:24,734 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/data/d0bd21e42/4cbfd57d0aa14d6292f8326092d6f511/FLAG4913d5730 [2021-11-23 02:41:24,934 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/data/d0bd21e42/4cbfd57d0aa14d6292f8326092d6f511 [2021-11-23 02:41:24,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:41:24,938 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:41:24,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:41:24,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:41:24,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:41:24,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:41:24" (1/1) ... [2021-11-23 02:41:24,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a0a6bc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:24, skipping insertion in model container [2021-11-23 02:41:24,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:41:24" (1/1) ... [2021-11-23 02:41:24,957 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:41:25,026 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:41:25,480 WARN L230 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_c320c21d-74a6-4308-82ef-bcd09f36a9cd/sv-benchmarks/c/product-lines/email_spec9_product33.cil.c[33566,33579] [2021-11-23 02:41:25,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:41:25,613 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:41:25,709 WARN L230 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_c320c21d-74a6-4308-82ef-bcd09f36a9cd/sv-benchmarks/c/product-lines/email_spec9_product33.cil.c[33566,33579] [2021-11-23 02:41:25,761 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:41:25,796 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:41:25,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:25 WrapperNode [2021-11-23 02:41:25,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:41:25,798 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:41:25,798 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:41:25,798 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:41:25,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:25" (1/1) ... [2021-11-23 02:41:25,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:25" (1/1) ... [2021-11-23 02:41:25,934 INFO L137 Inliner]: procedures = 135, calls = 233, calls flagged for inlining = 66, calls inlined = 61, statements flattened = 1084 [2021-11-23 02:41:25,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:41:25,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:41:25,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:41:25,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:41:25,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:25" (1/1) ... [2021-11-23 02:41:25,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:25" (1/1) ... [2021-11-23 02:41:25,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:25" (1/1) ... [2021-11-23 02:41:25,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:25" (1/1) ... [2021-11-23 02:41:25,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:25" (1/1) ... [2021-11-23 02:41:26,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:25" (1/1) ... [2021-11-23 02:41:26,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:25" (1/1) ... [2021-11-23 02:41:26,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:41:26,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:41:26,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:41:26,061 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:41:26,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:25" (1/1) ... [2021-11-23 02:41:26,071 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:41:26,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:41:26,096 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:41:26,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:41:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-11-23 02:41:26,130 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-11-23 02:41:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-11-23 02:41:26,130 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-11-23 02:41:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-11-23 02:41:26,131 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-11-23 02:41:26,131 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-11-23 02:41:26,131 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-11-23 02:41:26,131 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-11-23 02:41:26,131 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-11-23 02:41:26,131 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-11-23 02:41:26,132 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-11-23 02:41:26,132 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-11-23 02:41:26,132 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-11-23 02:41:26,132 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-11-23 02:41:26,132 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-11-23 02:41:26,132 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-11-23 02:41:26,132 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-11-23 02:41:26,132 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-11-23 02:41:26,132 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-11-23 02:41:26,132 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-23 02:41:26,132 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-11-23 02:41:26,133 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-11-23 02:41:26,133 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2021-11-23 02:41:26,133 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2021-11-23 02:41:26,136 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-11-23 02:41:26,136 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-11-23 02:41:26,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:41:26,137 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-11-23 02:41:26,137 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-11-23 02:41:26,137 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-11-23 02:41:26,137 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-11-23 02:41:26,137 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-11-23 02:41:26,137 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-11-23 02:41:26,138 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-11-23 02:41:26,138 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-11-23 02:41:26,138 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-11-23 02:41:26,138 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-11-23 02:41:26,138 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-11-23 02:41:26,139 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-11-23 02:41:26,139 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-11-23 02:41:26,139 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-11-23 02:41:26,139 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-11-23 02:41:26,139 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-11-23 02:41:26,139 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-11-23 02:41:26,140 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-11-23 02:41:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-11-23 02:41:26,140 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-11-23 02:41:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:41:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-11-23 02:41:26,141 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-11-23 02:41:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:41:26,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:41:26,400 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:41:26,402 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:41:27,343 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:41:27,745 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:41:27,746 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 02:41:27,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:41:27 BoogieIcfgContainer [2021-11-23 02:41:27,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:41:27,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:41:27,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:41:27,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:41:27,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:41:24" (1/3) ... [2021-11-23 02:41:27,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e143567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:41:27, skipping insertion in model container [2021-11-23 02:41:27,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:25" (2/3) ... [2021-11-23 02:41:27,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e143567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:41:27, skipping insertion in model container [2021-11-23 02:41:27,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:41:27" (3/3) ... [2021-11-23 02:41:27,774 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec9_product33.cil.c [2021-11-23 02:41:27,779 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:41:27,780 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:41:27,829 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:41:27,838 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:41:27,838 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:41:27,875 INFO L276 IsEmpty]: Start isEmpty. Operand has 212 states, 123 states have (on average 1.3089430894308942) internal successors, (161), 127 states have internal predecessors, (161), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2021-11-23 02:41:27,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-23 02:41:27,890 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:41:27,891 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:41:27,891 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:41:27,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:41:27,896 INFO L85 PathProgramCache]: Analyzing trace with hash -2045752414, now seen corresponding path program 1 times [2021-11-23 02:41:27,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:41:27,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176339419] [2021-11-23 02:41:27,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:41:27,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:41:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:41:28,304 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:41:28,305 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:41:28,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176339419] [2021-11-23 02:41:28,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176339419] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:41:28,307 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:41:28,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:41:28,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684481227] [2021-11-23 02:41:28,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:41:28,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:41:28,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:41:28,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:41:28,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:41:28,344 INFO L87 Difference]: Start difference. First operand has 212 states, 123 states have (on average 1.3089430894308942) internal successors, (161), 127 states have internal predecessors, (161), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-23 02:41:28,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:41:28,572 INFO L93 Difference]: Finished difference Result 341 states and 452 transitions. [2021-11-23 02:41:28,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:41:28,575 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 64 [2021-11-23 02:41:28,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:41:28,589 INFO L225 Difference]: With dead ends: 341 [2021-11-23 02:41:28,589 INFO L226 Difference]: Without dead ends: 209 [2021-11-23 02:41:28,595 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:41:28,599 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:41:28,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 243 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:41:28,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-11-23 02:41:28,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2021-11-23 02:41:28,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 121 states have (on average 1.28099173553719) internal successors, (155), 124 states have internal predecessors, (155), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2021-11-23 02:41:28,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 280 transitions. [2021-11-23 02:41:28,676 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 280 transitions. Word has length 64 [2021-11-23 02:41:28,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:41:28,678 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 280 transitions. [2021-11-23 02:41:28,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-23 02:41:28,678 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 280 transitions. [2021-11-23 02:41:28,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-23 02:41:28,683 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:41:28,683 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:41:28,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:41:28,684 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:41:28,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:41:28,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1138310357, now seen corresponding path program 1 times [2021-11-23 02:41:28,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:41:28,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961947926] [2021-11-23 02:41:28,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:41:28,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:41:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:41:28,883 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:41:28,883 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:41:28,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961947926] [2021-11-23 02:41:28,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961947926] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:41:28,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:41:28,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:41:28,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401335793] [2021-11-23 02:41:28,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:41:28,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:41:28,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:41:28,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:41:28,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:41:28,893 INFO L87 Difference]: Start difference. First operand 209 states and 280 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-23 02:41:29,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:41:29,098 INFO L93 Difference]: Finished difference Result 337 states and 440 transitions. [2021-11-23 02:41:29,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:41:29,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2021-11-23 02:41:29,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:41:29,104 INFO L225 Difference]: With dead ends: 337 [2021-11-23 02:41:29,113 INFO L226 Difference]: Without dead ends: 211 [2021-11-23 02:41:29,116 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:41:29,117 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 0 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:41:29,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 479 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:41:29,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-11-23 02:41:29,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2021-11-23 02:41:29,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 123 states have (on average 1.2764227642276422) internal successors, (157), 126 states have internal predecessors, (157), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2021-11-23 02:41:29,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 282 transitions. [2021-11-23 02:41:29,179 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 282 transitions. Word has length 65 [2021-11-23 02:41:29,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:41:29,181 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 282 transitions. [2021-11-23 02:41:29,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-23 02:41:29,182 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 282 transitions. [2021-11-23 02:41:29,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-23 02:41:29,186 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:41:29,187 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:41:29,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:41:29,187 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:41:29,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:41:29,188 INFO L85 PathProgramCache]: Analyzing trace with hash 679704658, now seen corresponding path program 1 times [2021-11-23 02:41:29,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:41:29,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936410940] [2021-11-23 02:41:29,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:41:29,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:41:29,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:41:29,287 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:41:29,288 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:41:29,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936410940] [2021-11-23 02:41:29,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936410940] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:41:29,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:41:29,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:41:29,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721525272] [2021-11-23 02:41:29,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:41:29,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:41:29,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:41:29,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:41:29,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:41:29,291 INFO L87 Difference]: Start difference. First operand 211 states and 282 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-23 02:41:29,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:41:29,459 INFO L93 Difference]: Finished difference Result 452 states and 623 transitions. [2021-11-23 02:41:29,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:41:29,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 70 [2021-11-23 02:41:29,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:41:29,472 INFO L225 Difference]: With dead ends: 452 [2021-11-23 02:41:29,472 INFO L226 Difference]: Without dead ends: 259 [2021-11-23 02:41:29,474 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:41:29,482 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 57 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:41:29,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 492 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:41:29,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-11-23 02:41:29,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 254. [2021-11-23 02:41:29,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 155 states have (on average 1.3548387096774193) internal successors, (210), 158 states have internal predecessors, (210), 74 states have call successors, (74), 24 states have call predecessors, (74), 24 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2021-11-23 02:41:29,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 357 transitions. [2021-11-23 02:41:29,543 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 357 transitions. Word has length 70 [2021-11-23 02:41:29,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:41:29,545 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 357 transitions. [2021-11-23 02:41:29,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-23 02:41:29,546 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 357 transitions. [2021-11-23 02:41:29,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-23 02:41:29,554 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:41:29,554 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:41:29,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:41:29,555 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:41:29,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:41:29,556 INFO L85 PathProgramCache]: Analyzing trace with hash -2008203541, now seen corresponding path program 1 times [2021-11-23 02:41:29,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:41:29,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143858631] [2021-11-23 02:41:29,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:41:29,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:41:29,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:41:29,651 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:41:29,654 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:41:29,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143858631] [2021-11-23 02:41:29,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143858631] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:41:29,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444725329] [2021-11-23 02:41:29,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:41:29,655 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:41:29,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:41:29,661 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:41:29,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:41:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:41:29,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:41:29,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:41:30,169 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:41:30,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:41:30,348 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:41:30,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444725329] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:41:30,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2009068406] [2021-11-23 02:41:30,372 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-23 02:41:30,372 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:41:30,378 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:41:30,384 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:41:30,384 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:42:10,912 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2021-11-23 02:42:11,184 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2021-11-23 02:42:11,444 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 271 for LOIs [2021-11-23 02:42:13,678 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 239 for LOIs [2021-11-23 02:42:13,719 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 273 for LOIs [2021-11-23 02:42:29,514 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 231 for LOIs [2021-11-23 02:42:29,555 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 252 for LOIs [2021-11-23 02:42:29,675 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 257 for LOIs [2021-11-23 02:42:29,753 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 477 for LOIs [2021-11-23 02:42:31,209 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:42:53,267 WARN L227 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 448 DAG size of output: 305 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:42:58,761 WARN L227 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 472 DAG size of output: 325 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:43:28,941 WARN L227 SmtUtils]: Spent 10.66s on a formula simplification. DAG size of input: 587 DAG size of output: 357 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:43:44,943 WARN L227 SmtUtils]: Spent 15.73s on a formula simplification. DAG size of input: 589 DAG size of output: 459 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:44:05,897 WARN L227 SmtUtils]: Spent 6.17s on a formula simplification. DAG size of input: 477 DAG size of output: 283 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:44:51,558 WARN L227 SmtUtils]: Spent 5.04s on a formula simplification. DAG size of input: 583 DAG size of output: 383 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:44:55,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [2009068406] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:44:55,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:44:55,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [4, 4, 4] total 53 [2021-11-23 02:44:55,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466366329] [2021-11-23 02:44:55,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:44:55,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-11-23 02:44:55,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:44:55,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-11-23 02:44:55,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=2624, Unknown=0, NotChecked=0, Total=2756 [2021-11-23 02:44:55,090 INFO L87 Difference]: Start difference. First operand 254 states and 357 transitions. Second operand has 48 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-23 02:45:07,109 WARN L227 SmtUtils]: Spent 7.07s on a formula simplification. DAG size of input: 550 DAG size of output: 413 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:45:14,789 WARN L227 SmtUtils]: Spent 7.37s on a formula simplification. DAG size of input: 582 DAG size of output: 415 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:45:22,679 WARN L227 SmtUtils]: Spent 7.50s on a formula simplification. DAG size of input: 583 DAG size of output: 412 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:45:30,630 WARN L227 SmtUtils]: Spent 7.54s on a formula simplification. DAG size of input: 584 DAG size of output: 418 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:45:42,368 WARN L227 SmtUtils]: Spent 7.92s on a formula simplification. DAG size of input: 585 DAG size of output: 434 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:45:59,818 WARN L227 SmtUtils]: Spent 16.42s on a formula simplification. DAG size of input: 580 DAG size of output: 441 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:46:31,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:46:31,131 INFO L93 Difference]: Finished difference Result 625 states and 926 transitions. [2021-11-23 02:46:31,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-23 02:46:31,132 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 71 [2021-11-23 02:46:31,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:46:31,136 INFO L225 Difference]: With dead ends: 625 [2021-11-23 02:46:31,136 INFO L226 Difference]: Without dead ends: 389 [2021-11-23 02:46:31,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 163 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 814 ImplicationChecksByTransitivity, 219.1s TimeCoverageRelationStatistics Valid=230, Invalid=4060, Unknown=0, NotChecked=0, Total=4290 [2021-11-23 02:46:31,140 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 327 mSDsluCounter, 7328 mSDsCounter, 0 mSdLazyCounter, 6717 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 7423 SdHoareTripleChecker+Invalid, 6762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 6717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:46:31,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 7423 Invalid, 6762 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [45 Valid, 6717 Invalid, 0 Unknown, 0 Unchecked, 20.3s Time] [2021-11-23 02:46:31,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2021-11-23 02:46:31,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 329. [2021-11-23 02:46:31,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 216 states have (on average 1.3564814814814814) internal successors, (293), 219 states have internal predecessors, (293), 82 states have call successors, (82), 32 states have call predecessors, (82), 30 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2021-11-23 02:46:31,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 456 transitions. [2021-11-23 02:46:31,267 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 456 transitions. Word has length 71 [2021-11-23 02:46:31,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:46:31,268 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 456 transitions. [2021-11-23 02:46:31,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-23 02:46:31,269 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 456 transitions. [2021-11-23 02:46:31,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-23 02:46:31,271 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:31,272 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:46:31,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-23 02:46:31,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:46:31,488 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:46:31,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:31,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1940112278, now seen corresponding path program 1 times [2021-11-23 02:46:31,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:31,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104994514] [2021-11-23 02:46:31,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:31,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:31,594 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:46:31,594 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:31,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104994514] [2021-11-23 02:46:31,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104994514] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:46:31,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259268449] [2021-11-23 02:46:31,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:31,602 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:46:31,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:46:31,612 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:46:31,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:46:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:31,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:46:31,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:46:32,022 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:46:32,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:46:32,177 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:46:32,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259268449] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:46:32,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1345369785] [2021-11-23 02:46:32,181 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2021-11-23 02:46:32,181 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:46:32,182 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:46:32,182 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:46:32,183 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:47:08,166 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2021-11-23 02:47:08,419 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2021-11-23 02:47:08,711 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:47:20,082 WARN L227 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 444 DAG size of output: 308 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:47:25,546 WARN L227 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 467 DAG size of output: 328 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:48:07,375 WARN L227 SmtUtils]: Spent 14.97s on a formula simplification. DAG size of input: 583 DAG size of output: 415 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:48:22,354 WARN L227 SmtUtils]: Spent 14.69s on a formula simplification. DAG size of input: 583 DAG size of output: 410 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:48:38,659 WARN L227 SmtUtils]: Spent 6.52s on a formula simplification. DAG size of input: 584 DAG size of output: 383 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:48:38,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1345369785] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:48:38,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:48:38,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2021-11-23 02:48:38,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817413493] [2021-11-23 02:48:38,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:48:38,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-23 02:48:38,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:48:38,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-23 02:48:38,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=763, Unknown=0, NotChecked=0, Total=870 [2021-11-23 02:48:38,664 INFO L87 Difference]: Start difference. First operand 329 states and 456 transitions. Second operand has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2021-11-23 02:48:48,817 WARN L227 SmtUtils]: Spent 9.18s on a formula simplification. DAG size of input: 488 DAG size of output: 414 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:48:58,831 WARN L227 SmtUtils]: Spent 9.82s on a formula simplification. DAG size of input: 479 DAG size of output: 394 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:49:07,109 WARN L227 SmtUtils]: Spent 5.53s on a formula simplification. DAG size of input: 505 DAG size of output: 390 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:49:33,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:49:33,833 INFO L93 Difference]: Finished difference Result 692 states and 1019 transitions. [2021-11-23 02:49:33,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-23 02:49:33,834 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 77 [2021-11-23 02:49:33,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:49:33,838 INFO L225 Difference]: With dead ends: 692 [2021-11-23 02:49:33,838 INFO L226 Difference]: Without dead ends: 456 [2021-11-23 02:49:33,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 138.7s TimeCoverageRelationStatistics Valid=198, Invalid=1362, Unknown=0, NotChecked=0, Total=1560 [2021-11-23 02:49:33,841 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 217 mSDsluCounter, 3710 mSDsCounter, 0 mSdLazyCounter, 2250 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 3854 SdHoareTripleChecker+Invalid, 2282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:49:33,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 3854 Invalid, 2282 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 2250 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2021-11-23 02:49:33,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-11-23 02:49:34,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 373. [2021-11-23 02:49:34,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 257 states have (on average 1.404669260700389) internal successors, (361), 261 states have internal predecessors, (361), 84 states have call successors, (84), 33 states have call predecessors, (84), 31 states have return successors, (83), 80 states have call predecessors, (83), 83 states have call successors, (83) [2021-11-23 02:49:34,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 528 transitions. [2021-11-23 02:49:34,030 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 528 transitions. Word has length 77 [2021-11-23 02:49:34,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:49:34,032 INFO L470 AbstractCegarLoop]: Abstraction has 373 states and 528 transitions. [2021-11-23 02:49:34,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2021-11-23 02:49:34,032 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 528 transitions. [2021-11-23 02:49:34,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-23 02:49:34,035 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:49:34,035 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:49:34,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-23 02:49:34,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:49:34,244 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:49:34,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:49:34,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1200706014, now seen corresponding path program 1 times [2021-11-23 02:49:34,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:49:34,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749462710] [2021-11-23 02:49:34,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:49:34,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:49:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:49:34,321 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:49:34,322 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:49:34,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749462710] [2021-11-23 02:49:34,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749462710] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:49:34,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876563281] [2021-11-23 02:49:34,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:49:34,323 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:49:34,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:49:34,324 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:49:34,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:49:34,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:49:34,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 1154 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:49:34,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:49:34,726 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:49:34,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:49:34,860 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:49:34,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876563281] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:49:34,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [32399688] [2021-11-23 02:49:34,865 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2021-11-23 02:49:34,865 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:49:34,866 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:49:34,866 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:49:34,866 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:50:10,606 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2021-11-23 02:50:10,862 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 236 for LOIs [2021-11-23 02:50:10,929 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 245 for LOIs [2021-11-23 02:50:10,999 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 451 for LOIs [2021-11-23 02:50:11,123 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2021-11-23 02:50:11,378 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:50:23,373 WARN L227 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 444 DAG size of output: 308 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:50:29,050 WARN L227 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 467 DAG size of output: 328 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:50:35,067 WARN L227 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 448 DAG size of output: 305 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:50:40,707 WARN L227 SmtUtils]: Spent 5.46s on a formula simplification. DAG size of input: 472 DAG size of output: 325 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:51:17,931 WARN L227 SmtUtils]: Spent 16.48s on a formula simplification. DAG size of input: 623 DAG size of output: 483 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:51:33,992 WARN L227 SmtUtils]: Spent 15.65s on a formula simplification. DAG size of input: 623 DAG size of output: 464 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:51:53,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [32399688] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:51:53,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:51:53,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2021-11-23 02:51:53,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810511176] [2021-11-23 02:51:53,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:51:53,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-23 02:51:53,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:51:53,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-23 02:51:53,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2021-11-23 02:51:53,017 INFO L87 Difference]: Start difference. First operand 373 states and 528 transitions. Second operand has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2021-11-23 02:51:59,981 WARN L227 SmtUtils]: Spent 5.62s on a formula simplification. DAG size of input: 566 DAG size of output: 357 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:52:14,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:52:14,664 INFO L93 Difference]: Finished difference Result 722 states and 1068 transitions. [2021-11-23 02:52:14,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-23 02:52:14,664 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 80 [2021-11-23 02:52:14,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:52:14,668 INFO L225 Difference]: With dead ends: 722 [2021-11-23 02:52:14,669 INFO L226 Difference]: Without dead ends: 486 [2021-11-23 02:52:14,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 112.5s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2021-11-23 02:52:14,671 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 200 mSDsluCounter, 4567 mSDsCounter, 0 mSdLazyCounter, 3529 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 4692 SdHoareTripleChecker+Invalid, 3546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:52:14,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 4692 Invalid, 3546 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 3529 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2021-11-23 02:52:14,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2021-11-23 02:52:14,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 440. [2021-11-23 02:52:14,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 317 states have (on average 1.4353312302839116) internal successors, (455), 322 states have internal predecessors, (455), 88 states have call successors, (88), 36 states have call predecessors, (88), 34 states have return successors, (87), 83 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-23 02:52:14,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 630 transitions. [2021-11-23 02:52:14,857 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 630 transitions. Word has length 80 [2021-11-23 02:52:14,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:52:14,857 INFO L470 AbstractCegarLoop]: Abstraction has 440 states and 630 transitions. [2021-11-23 02:52:14,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2021-11-23 02:52:14,858 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 630 transitions. [2021-11-23 02:52:14,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-23 02:52:14,860 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:52:14,860 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:52:14,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-23 02:52:15,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:52:15,088 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:52:15,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:52:15,089 INFO L85 PathProgramCache]: Analyzing trace with hash -763640620, now seen corresponding path program 1 times [2021-11-23 02:52:15,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:52:15,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689916611] [2021-11-23 02:52:15,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:52:15,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:52:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:52:15,220 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:52:15,220 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:52:15,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689916611] [2021-11-23 02:52:15,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689916611] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:52:15,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778000095] [2021-11-23 02:52:15,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:52:15,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:52:15,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:52:15,224 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:52:15,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c320c21d-74a6-4308-82ef-bcd09f36a9cd/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 02:52:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:52:15,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:52:15,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:52:15,621 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:52:15,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:52:15,811 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:52:15,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778000095] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:52:15,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [489304466] [2021-11-23 02:52:15,821 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2021-11-23 02:52:15,821 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:52:15,823 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:52:15,823 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:52:15,824 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:52:47,764 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2021-11-23 02:52:48,023 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2021-11-23 02:52:48,279 INFO L180 IcfgInterpreter]: Interpretation finished