./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product12.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product12.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f43e7267ed715243a41104ad5703ed473575064952f167333067630dfd5e9da --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 12:34:44,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:34:44,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:34:44,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:34:44,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:34:44,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:34:44,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:34:44,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:34:44,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:34:44,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:34:44,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:34:44,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:34:44,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:34:44,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:34:44,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:34:44,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:34:44,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:34:44,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:34:44,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:34:44,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:34:44,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:34:44,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:34:44,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:34:44,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:34:44,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:34:44,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:34:44,306 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:34:44,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:34:44,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:34:44,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:34:44,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:34:44,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:34:44,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:34:44,309 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:34:44,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:34:44,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:34:44,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:34:44,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:34:44,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:34:44,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:34:44,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:34:44,312 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 12:34:44,325 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:34:44,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:34:44,326 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:34:44,326 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:34:44,326 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:34:44,326 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:34:44,326 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:34:44,327 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:34:44,327 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:34:44,327 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:34:44,327 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:34:44,327 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:34:44,327 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:34:44,327 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:34:44,327 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:34:44,327 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:34:44,328 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:34:44,328 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:34:44,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:34:44,328 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 12:34:44,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:34:44,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 12:34:44,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:34:44,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:34:44,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:34:44,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:34:44,329 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 12:34:44,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:34:44,329 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:34:44,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:34:44,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:34:44,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:34:44,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:34:44,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:34:44,330 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:34:44,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:34:44,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:34:44,330 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:34:44,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:34:44,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:34:44,330 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:34:44,330 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f43e7267ed715243a41104ad5703ed473575064952f167333067630dfd5e9da [2022-12-14 12:34:44,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:34:44,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:34:44,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:34:44,531 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:34:44,532 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:34:44,533 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec1_product12.cil.c [2022-12-14 12:34:47,038 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:34:47,249 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:34:47,249 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/sv-benchmarks/c/product-lines/email_spec1_product12.cil.c [2022-12-14 12:34:47,260 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/data/18e30773d/8e3cc0d54b4d487bafc5a786050ef32e/FLAG7ebb7e287 [2022-12-14 12:34:47,599 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/data/18e30773d/8e3cc0d54b4d487bafc5a786050ef32e [2022-12-14 12:34:47,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:34:47,603 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:34:47,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:34:47,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:34:47,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:34:47,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:34:47" (1/1) ... [2022-12-14 12:34:47,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19902b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:34:47, skipping insertion in model container [2022-12-14 12:34:47,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:34:47" (1/1) ... [2022-12-14 12:34:47,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:34:47,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:34:47,819 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:34:47,821 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:34:47,825 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:34:47,896 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:34:47,899 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:34:47,954 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/sv-benchmarks/c/product-lines/email_spec1_product12.cil.c[58861,58874] [2022-12-14 12:34:47,964 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:34:47,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:34:47,976 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:34:47,991 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:34:47,992 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:34:47,994 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:34:48,017 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:34:48,019 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:34:48,040 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/sv-benchmarks/c/product-lines/email_spec1_product12.cil.c[58861,58874] [2022-12-14 12:34:48,043 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:34:48,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:34:48,062 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:34:48,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:34:48 WrapperNode [2022-12-14 12:34:48,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:34:48,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:34:48,063 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:34:48,063 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:34:48,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:34:48" (1/1) ... [2022-12-14 12:34:48,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:34:48" (1/1) ... [2022-12-14 12:34:48,111 INFO L138 Inliner]: procedures = 122, calls = 186, calls flagged for inlining = 50, calls inlined = 40, statements flattened = 820 [2022-12-14 12:34:48,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:34:48,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:34:48,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:34:48,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:34:48,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:34:48" (1/1) ... [2022-12-14 12:34:48,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:34:48" (1/1) ... [2022-12-14 12:34:48,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:34:48" (1/1) ... [2022-12-14 12:34:48,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:34:48" (1/1) ... [2022-12-14 12:34:48,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:34:48" (1/1) ... [2022-12-14 12:34:48,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:34:48" (1/1) ... [2022-12-14 12:34:48,137 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:34:48" (1/1) ... [2022-12-14 12:34:48,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:34:48" (1/1) ... [2022-12-14 12:34:48,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:34:48,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:34:48,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:34:48,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:34:48,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:34:48" (1/1) ... [2022-12-14 12:34:48,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:34:48,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:34:48,180 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:34:48,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:34:48,216 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 12:34:48,216 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 12:34:48,216 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 12:34:48,217 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 12:34:48,217 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 12:34:48,217 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 12:34:48,217 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 12:34:48,217 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 12:34:48,217 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 12:34:48,217 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 12:34:48,217 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 12:34:48,218 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 12:34:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 12:34:48,218 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 12:34:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 12:34:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 12:34:48,218 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 12:34:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:34:48,219 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 12:34:48,219 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 12:34:48,219 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 12:34:48,219 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 12:34:48,219 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 12:34:48,219 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 12:34:48,219 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 12:34:48,220 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 12:34:48,220 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 12:34:48,220 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 12:34:48,220 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 12:34:48,220 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 12:34:48,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:34:48,220 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 12:34:48,220 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 12:34:48,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:34:48,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:34:48,350 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:34:48,352 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:34:48,807 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:34:49,014 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:34:49,014 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 12:34:49,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:34:49 BoogieIcfgContainer [2022-12-14 12:34:49,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:34:49,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:34:49,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:34:49,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:34:49,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:34:47" (1/3) ... [2022-12-14 12:34:49,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18fb2e2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:34:49, skipping insertion in model container [2022-12-14 12:34:49,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:34:48" (2/3) ... [2022-12-14 12:34:49,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18fb2e2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:34:49, skipping insertion in model container [2022-12-14 12:34:49,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:34:49" (3/3) ... [2022-12-14 12:34:49,022 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product12.cil.c [2022-12-14 12:34:49,035 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:34:49,035 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 12:34:49,072 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:34:49,076 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@740939d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:34:49,076 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 12:34:49,081 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 84 states have (on average 1.3928571428571428) internal successors, (117), 88 states have internal predecessors, (117), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-12-14 12:34:49,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-12-14 12:34:49,092 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:34:49,092 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:34:49,093 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:34:49,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:34:49,098 INFO L85 PathProgramCache]: Analyzing trace with hash 890208044, now seen corresponding path program 1 times [2022-12-14 12:34:49,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:34:49,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010859631] [2022-12-14 12:34:49,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:34:49,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:34:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:34:49,376 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 12:34:49,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:34:49,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010859631] [2022-12-14 12:34:49,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010859631] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:34:49,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:34:49,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:34:49,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945119728] [2022-12-14 12:34:49,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:34:49,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 12:34:49,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:34:49,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 12:34:49,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 12:34:49,406 INFO L87 Difference]: Start difference. First operand has 140 states, 84 states have (on average 1.3928571428571428) internal successors, (117), 88 states have internal predecessors, (117), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 12:34:49,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:34:49,490 INFO L93 Difference]: Finished difference Result 197 states and 268 transitions. [2022-12-14 12:34:49,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 12:34:49,492 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 53 [2022-12-14 12:34:49,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:34:49,499 INFO L225 Difference]: With dead ends: 197 [2022-12-14 12:34:49,500 INFO L226 Difference]: Without dead ends: 137 [2022-12-14 12:34:49,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 12:34:49,504 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:34:49,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 168 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:34:49,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-12-14 12:34:49,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2022-12-14 12:34:49,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 82 states have (on average 1.353658536585366) internal successors, (111), 85 states have internal predecessors, (111), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-12-14 12:34:49,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 188 transitions. [2022-12-14 12:34:49,539 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 188 transitions. Word has length 53 [2022-12-14 12:34:49,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:34:49,540 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 188 transitions. [2022-12-14 12:34:49,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 12:34:49,541 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 188 transitions. [2022-12-14 12:34:49,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-14 12:34:49,542 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:34:49,542 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:34:49,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:34:49,543 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:34:49,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:34:49,543 INFO L85 PathProgramCache]: Analyzing trace with hash 421441485, now seen corresponding path program 1 times [2022-12-14 12:34:49,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:34:49,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864744889] [2022-12-14 12:34:49,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:34:49,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:34:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:34:49,653 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 12:34:49,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:34:49,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864744889] [2022-12-14 12:34:49,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864744889] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:34:49,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:34:49,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:34:49,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213083437] [2022-12-14 12:34:49,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:34:49,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:34:49,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:34:49,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:34:49,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:34:49,657 INFO L87 Difference]: Start difference. First operand 137 states and 188 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 12:34:49,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:34:49,733 INFO L93 Difference]: Finished difference Result 193 states and 256 transitions. [2022-12-14 12:34:49,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:34:49,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 54 [2022-12-14 12:34:49,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:34:49,735 INFO L225 Difference]: With dead ends: 193 [2022-12-14 12:34:49,735 INFO L226 Difference]: Without dead ends: 139 [2022-12-14 12:34:49,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:34:49,736 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:34:49,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 329 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:34:49,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-12-14 12:34:49,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2022-12-14 12:34:49,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 84 states have (on average 1.3452380952380953) internal successors, (113), 87 states have internal predecessors, (113), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-12-14 12:34:49,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 190 transitions. [2022-12-14 12:34:49,747 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 190 transitions. Word has length 54 [2022-12-14 12:34:49,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:34:49,747 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 190 transitions. [2022-12-14 12:34:49,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 12:34:49,748 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 190 transitions. [2022-12-14 12:34:49,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-12-14 12:34:49,749 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:34:49,749 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:34:49,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 12:34:49,749 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:34:49,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:34:49,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1969715875, now seen corresponding path program 1 times [2022-12-14 12:34:49,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:34:49,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791790860] [2022-12-14 12:34:49,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:34:49,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:34:49,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:34:49,821 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 12:34:49,821 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:34:49,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791790860] [2022-12-14 12:34:49,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791790860] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:34:49,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:34:49,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:34:49,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545330801] [2022-12-14 12:34:49,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:34:49,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:34:49,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:34:49,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:34:49,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:34:49,824 INFO L87 Difference]: Start difference. First operand 139 states and 190 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 12:34:49,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:34:49,901 INFO L93 Difference]: Finished difference Result 308 states and 439 transitions. [2022-12-14 12:34:49,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:34:49,901 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 59 [2022-12-14 12:34:49,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:34:49,903 INFO L225 Difference]: With dead ends: 308 [2022-12-14 12:34:49,903 INFO L226 Difference]: Without dead ends: 187 [2022-12-14 12:34:49,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:34:49,904 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 57 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:34:49,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 346 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:34:49,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-12-14 12:34:49,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 182. [2022-12-14 12:34:49,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 116 states have (on average 1.4310344827586208) internal successors, (166), 119 states have internal predecessors, (166), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-12-14 12:34:49,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 265 transitions. [2022-12-14 12:34:49,917 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 265 transitions. Word has length 59 [2022-12-14 12:34:49,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:34:49,918 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 265 transitions. [2022-12-14 12:34:49,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 12:34:49,918 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 265 transitions. [2022-12-14 12:34:49,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-12-14 12:34:49,919 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:34:49,919 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:34:49,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 12:34:49,920 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:34:49,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:34:49,920 INFO L85 PathProgramCache]: Analyzing trace with hash -2137455474, now seen corresponding path program 1 times [2022-12-14 12:34:49,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:34:49,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858889190] [2022-12-14 12:34:49,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:34:49,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:34:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:34:50,009 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 12:34:50,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:34:50,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858889190] [2022-12-14 12:34:50,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858889190] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:34:50,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841846533] [2022-12-14 12:34:50,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:34:50,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:34:50,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:34:50,011 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:34:50,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 12:34:50,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:34:50,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:34:50,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:34:50,258 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 12:34:50,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:34:50,312 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 12:34:50,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841846533] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:34:50,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1825797965] [2022-12-14 12:34:50,331 INFO L159 IcfgInterpreter]: Started Sifa with 49 locations of interest [2022-12-14 12:34:50,332 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:34:50,337 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:34:50,340 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:34:50,341 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:35:15,911 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 12:35:16,224 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 12:35:16,534 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:35:59,632 WARN L233 SmtUtils]: Spent 11.35s on a formula simplification. DAG size of input: 587 DAG size of output: 457 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:36:13,066 WARN L233 SmtUtils]: Spent 13.17s on a formula simplification. DAG size of input: 589 DAG size of output: 457 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:36:22,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1825797965] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:36:22,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:36:22,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 12:36:22,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674189568] [2022-12-14 12:36:22,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:36:22,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 12:36:22,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:36:22,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 12:36:22,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2022-12-14 12:36:22,580 INFO L87 Difference]: Start difference. First operand 182 states and 265 transitions. Second operand has 21 states, 16 states have (on average 2.0) internal successors, (32), 15 states have internal predecessors, (32), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2022-12-14 12:36:28,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:36:28,305 INFO L93 Difference]: Finished difference Result 443 states and 691 transitions. [2022-12-14 12:36:28,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-14 12:36:28,306 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.0) internal successors, (32), 15 states have internal predecessors, (32), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) Word has length 60 [2022-12-14 12:36:28,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:36:28,307 INFO L225 Difference]: With dead ends: 443 [2022-12-14 12:36:28,307 INFO L226 Difference]: Without dead ends: 279 [2022-12-14 12:36:28,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 66.0s TimeCoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2022-12-14 12:36:28,309 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 133 mSDsluCounter, 2083 mSDsCounter, 0 mSdLazyCounter, 1720 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 2292 SdHoareTripleChecker+Invalid, 1729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-12-14 12:36:28,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 2292 Invalid, 1729 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1720 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-12-14 12:36:28,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-12-14 12:36:28,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 205. [2022-12-14 12:36:28,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 138 states have (on average 1.4420289855072463) internal successors, (199), 141 states have internal predecessors, (199), 50 states have call successors, (50), 16 states have call predecessors, (50), 16 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-12-14 12:36:28,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 298 transitions. [2022-12-14 12:36:28,382 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 298 transitions. Word has length 60 [2022-12-14 12:36:28,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:36:28,382 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 298 transitions. [2022-12-14 12:36:28,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.0) internal successors, (32), 15 states have internal predecessors, (32), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2022-12-14 12:36:28,383 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 298 transitions. [2022-12-14 12:36:28,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-14 12:36:28,384 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:36:28,384 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:36:28,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 12:36:28,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:36:28,586 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:36:28,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:36:28,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1654882697, now seen corresponding path program 1 times [2022-12-14 12:36:28,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:36:28,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900384772] [2022-12-14 12:36:28,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:36:28,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:36:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:36:28,657 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 12:36:28,658 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:36:28,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900384772] [2022-12-14 12:36:28,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900384772] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:36:28,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:36:28,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:36:28,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737115288] [2022-12-14 12:36:28,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:36:28,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:36:28,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:36:28,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:36:28,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:36:28,660 INFO L87 Difference]: Start difference. First operand 205 states and 298 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 12:36:28,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:36:28,907 INFO L93 Difference]: Finished difference Result 503 states and 760 transitions. [2022-12-14 12:36:28,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:36:28,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 65 [2022-12-14 12:36:28,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:36:28,911 INFO L225 Difference]: With dead ends: 503 [2022-12-14 12:36:28,911 INFO L226 Difference]: Without dead ends: 322 [2022-12-14 12:36:28,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:36:28,913 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 55 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:36:28,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 352 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:36:28,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-12-14 12:36:29,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 317. [2022-12-14 12:36:29,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 225 states have (on average 1.488888888888889) internal successors, (335), 228 states have internal predecessors, (335), 75 states have call successors, (75), 16 states have call predecessors, (75), 16 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2022-12-14 12:36:29,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 484 transitions. [2022-12-14 12:36:29,041 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 484 transitions. Word has length 65 [2022-12-14 12:36:29,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:36:29,041 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 484 transitions. [2022-12-14 12:36:29,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 12:36:29,041 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 484 transitions. [2022-12-14 12:36:29,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 12:36:29,043 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:36:29,043 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:36:29,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 12:36:29,043 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:36:29,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:36:29,044 INFO L85 PathProgramCache]: Analyzing trace with hash -595524251, now seen corresponding path program 1 times [2022-12-14 12:36:29,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:36:29,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224709329] [2022-12-14 12:36:29,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:36:29,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:36:29,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:36:29,135 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 12:36:29,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:36:29,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224709329] [2022-12-14 12:36:29,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224709329] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:36:29,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774918988] [2022-12-14 12:36:29,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:36:29,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:36:29,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:36:29,137 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:36:29,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 12:36:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:36:29,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:36:29,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:36:29,342 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 12:36:29,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:36:29,389 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 12:36:29,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774918988] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:36:29,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1450659118] [2022-12-14 12:36:29,392 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2022-12-14 12:36:29,392 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:36:29,393 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:36:29,393 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:36:29,393 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:37:04,218 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 12:37:04,528 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-12-14 12:37:04,831 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 248 for LOIs [2022-12-14 12:37:05,489 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 243 for LOIs [2022-12-14 12:37:09,502 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 226 for LOIs [2022-12-14 12:37:09,535 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 472 for LOIs [2022-12-14 12:37:12,918 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:37:49,142 WARN L233 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 592 DAG size of output: 341 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:37:59,887 WARN L233 SmtUtils]: Spent 10.46s on a formula simplification. DAG size of input: 594 DAG size of output: 465 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:38:14,658 WARN L233 SmtUtils]: Spent 7.09s on a formula simplification. DAG size of input: 472 DAG size of output: 360 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:38:31,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1450659118] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:38:31,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:38:31,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [4, 4, 4] total 46 [2022-12-14 12:38:31,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772017523] [2022-12-14 12:38:31,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:38:31,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-12-14 12:38:31,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:38:31,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-12-14 12:38:31,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1941, Unknown=0, NotChecked=0, Total=2070 [2022-12-14 12:38:31,093 INFO L87 Difference]: Start difference. First operand 317 states and 484 transitions. Second operand has 41 states, 29 states have (on average 1.206896551724138) internal successors, (35), 27 states have internal predecessors, (35), 13 states have call successors, (13), 7 states have call predecessors, (13), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 12:38:44,917 WARN L233 SmtUtils]: Spent 10.10s on a formula simplification. DAG size of input: 577 DAG size of output: 437 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:38:59,883 WARN L233 SmtUtils]: Spent 5.77s on a formula simplification. DAG size of input: 595 DAG size of output: 426 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:39:16,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:39:16,660 INFO L93 Difference]: Finished difference Result 750 states and 1202 transitions. [2022-12-14 12:39:16,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-14 12:39:16,661 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 29 states have (on average 1.206896551724138) internal successors, (35), 27 states have internal predecessors, (35), 13 states have call successors, (13), 7 states have call predecessors, (13), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 66 [2022-12-14 12:39:16,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:39:16,663 INFO L225 Difference]: With dead ends: 750 [2022-12-14 12:39:16,663 INFO L226 Difference]: Without dead ends: 496 [2022-12-14 12:39:16,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 155 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 701 ImplicationChecksByTransitivity, 109.3s TimeCoverageRelationStatistics Valid=234, Invalid=3306, Unknown=0, NotChecked=0, Total=3540 [2022-12-14 12:39:16,665 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 244 mSDsluCounter, 3449 mSDsCounter, 0 mSdLazyCounter, 4549 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 3633 SdHoareTripleChecker+Invalid, 4582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 4549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-12-14 12:39:16,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 3633 Invalid, 4582 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [33 Valid, 4549 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2022-12-14 12:39:16,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-12-14 12:39:16,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 409. [2022-12-14 12:39:16,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 306 states have (on average 1.5359477124183007) internal successors, (470), 311 states have internal predecessors, (470), 83 states have call successors, (83), 21 states have call predecessors, (83), 19 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2022-12-14 12:39:16,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 635 transitions. [2022-12-14 12:39:16,870 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 635 transitions. Word has length 66 [2022-12-14 12:39:16,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:39:16,870 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 635 transitions. [2022-12-14 12:39:16,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 29 states have (on average 1.206896551724138) internal successors, (35), 27 states have internal predecessors, (35), 13 states have call successors, (13), 7 states have call predecessors, (13), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 12:39:16,870 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 635 transitions. [2022-12-14 12:39:16,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 12:39:16,872 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:39:16,872 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:39:16,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 12:39:17,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 12:39:17,074 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:39:17,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:39:17,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1084840839, now seen corresponding path program 1 times [2022-12-14 12:39:17,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:39:17,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110615391] [2022-12-14 12:39:17,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:39:17,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:39:17,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:39:17,208 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 12:39:17,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:39:17,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110615391] [2022-12-14 12:39:17,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110615391] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:39:17,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238433049] [2022-12-14 12:39:17,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:39:17,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:39:17,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:39:17,210 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:39:17,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 12:39:17,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:39:17,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 1000 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:39:17,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:39:17,413 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 12:39:17,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:39:17,451 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 12:39:17,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238433049] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:39:17,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [836392013] [2022-12-14 12:39:17,453 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2022-12-14 12:39:17,453 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:39:17,453 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:39:17,454 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:39:17,454 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:40:18,358 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 12:40:18,664 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-12-14 12:40:18,729 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 453 for LOIs [2022-12-14 12:40:19,073 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 12:40:19,505 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 456 for LOIs [2022-12-14 12:40:19,873 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:40:57,099 WARN L233 SmtUtils]: Spent 5.97s on a formula simplification. DAG size of input: 640 DAG size of output: 412 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:41:10,013 WARN L233 SmtUtils]: Spent 12.62s on a formula simplification. DAG size of input: 642 DAG size of output: 518 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:41:32,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [836392013] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:41:32,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:41:32,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 12:41:32,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699360877] [2022-12-14 12:41:32,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:41:32,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 12:41:32,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:41:32,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 12:41:32,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 12:41:32,344 INFO L87 Difference]: Start difference. First operand 409 states and 635 transitions. Second operand has 30 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 10 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) [2022-12-14 12:41:48,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:41:48,521 INFO L93 Difference]: Finished difference Result 828 states and 1327 transitions. [2022-12-14 12:41:48,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 12:41:48,523 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 10 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) Word has length 69 [2022-12-14 12:41:48,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:41:48,524 INFO L225 Difference]: With dead ends: 828 [2022-12-14 12:41:48,525 INFO L226 Difference]: Without dead ends: 574 [2022-12-14 12:41:48,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 79.2s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 12:41:48,526 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 111 mSDsluCounter, 2605 mSDsCounter, 0 mSdLazyCounter, 2897 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 2778 SdHoareTripleChecker+Invalid, 2907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:41:48,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 2778 Invalid, 2907 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2897 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2022-12-14 12:41:48,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-12-14 12:41:48,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 499. [2022-12-14 12:41:48,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 388 states have (on average 1.5515463917525774) internal successors, (602), 395 states have internal predecessors, (602), 88 states have call successors, (88), 24 states have call predecessors, (88), 22 states have return successors, (87), 81 states have call predecessors, (87), 87 states have call successors, (87) [2022-12-14 12:41:48,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 777 transitions. [2022-12-14 12:41:48,844 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 777 transitions. Word has length 69 [2022-12-14 12:41:48,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:41:48,844 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 777 transitions. [2022-12-14 12:41:48,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 10 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) [2022-12-14 12:41:48,844 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 777 transitions. [2022-12-14 12:41:48,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 12:41:48,846 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:41:48,846 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:41:48,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 12:41:49,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:41:49,047 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:41:49,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:41:49,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1127000298, now seen corresponding path program 1 times [2022-12-14 12:41:49,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:41:49,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883933594] [2022-12-14 12:41:49,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:41:49,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:41:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:41:49,152 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 12:41:49,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:41:49,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883933594] [2022-12-14 12:41:49,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883933594] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:41:49,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763400953] [2022-12-14 12:41:49,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:41:49,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:41:49,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:41:49,154 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:41:49,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 12:41:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:41:49,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 12:41:49,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:41:49,354 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 12:41:49,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:41:49,391 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 12:41:49,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763400953] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:41:49,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [512875815] [2022-12-14 12:41:49,392 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2022-12-14 12:41:49,393 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:41:49,393 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:41:49,393 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:41:49,393 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:42:59,761 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 12:43:00,059 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-12-14 12:43:00,372 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 248 for LOIs [2022-12-14 12:43:01,021 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 243 for LOIs [2022-12-14 12:43:04,936 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 226 for LOIs [2022-12-14 12:43:04,970 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 472 for LOIs [2022-12-14 12:43:08,303 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:44:17,744 WARN L233 SmtUtils]: Spent 8.10s on a formula simplification. DAG size of input: 472 DAG size of output: 360 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:44:32,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [512875815] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:44:32,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:44:32,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [5, 5, 5] total 46 [2022-12-14 12:44:32,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936007862] [2022-12-14 12:44:32,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:44:32,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-12-14 12:44:32,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:44:32,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-12-14 12:44:32,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1936, Unknown=0, NotChecked=0, Total=2070 [2022-12-14 12:44:32,852 INFO L87 Difference]: Start difference. First operand 499 states and 777 transitions. Second operand has 41 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 27 states have internal predecessors, (36), 13 states have call successors, (13), 7 states have call predecessors, (13), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 12:45:36,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:45:36,402 INFO L93 Difference]: Finished difference Result 923 states and 1479 transitions. [2022-12-14 12:45:36,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-12-14 12:45:36,403 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 27 states have internal predecessors, (36), 13 states have call successors, (13), 7 states have call predecessors, (13), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 71 [2022-12-14 12:45:36,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:45:36,405 INFO L225 Difference]: With dead ends: 923 [2022-12-14 12:45:36,405 INFO L226 Difference]: Without dead ends: 669 [2022-12-14 12:45:36,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 169 SyntacticMatches, 3 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 856 ImplicationChecksByTransitivity, 134.1s TimeCoverageRelationStatistics Valid=343, Invalid=3947, Unknown=0, NotChecked=0, Total=4290 [2022-12-14 12:45:36,407 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 540 mSDsluCounter, 3219 mSDsCounter, 0 mSdLazyCounter, 4677 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 3441 SdHoareTripleChecker+Invalid, 4773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 4677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:45:36,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 3441 Invalid, 4773 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [96 Valid, 4677 Invalid, 0 Unknown, 0 Unchecked, 13.0s Time] [2022-12-14 12:45:36,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2022-12-14 12:45:36,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 532. [2022-12-14 12:45:36,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 416 states have (on average 1.5504807692307692) internal successors, (645), 425 states have internal predecessors, (645), 92 states have call successors, (92), 25 states have call predecessors, (92), 23 states have return successors, (91), 83 states have call predecessors, (91), 91 states have call successors, (91) [2022-12-14 12:45:36,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 828 transitions. [2022-12-14 12:45:36,824 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 828 transitions. Word has length 71 [2022-12-14 12:45:36,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:45:36,825 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 828 transitions. [2022-12-14 12:45:36,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 27 states have internal predecessors, (36), 13 states have call successors, (13), 7 states have call predecessors, (13), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 12:45:36,825 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 828 transitions. [2022-12-14 12:45:36,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 12:45:36,826 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:45:36,826 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-12-14 12:45:36,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 12:45:37,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 12:45:37,028 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:45:37,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:45:37,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1651928713, now seen corresponding path program 1 times [2022-12-14 12:45:37,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:45:37,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272062048] [2022-12-14 12:45:37,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:45:37,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:45:37,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:45:37,954 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 12:45:37,955 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:45:37,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272062048] [2022-12-14 12:45:37,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272062048] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:45:37,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78938837] [2022-12-14 12:45:37,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:45:37,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:45:37,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:45:37,956 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:45:37,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec2305e0-c1e3-4156-b619-c548826b34a2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 12:45:38,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:45:38,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 12:45:38,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:45:38,215 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 12:45:38,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:45:38,295 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 12:45:38,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78938837] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:45:38,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2044933695] [2022-12-14 12:45:38,298 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-12-14 12:45:38,298 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:45:38,299 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:45:38,299 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:45:38,299 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:46:42,128 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 12:46:42,437 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-12-14 12:46:42,502 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 453 for LOIs [2022-12-14 12:46:42,861 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 12:46:43,163 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 456 for LOIs [2022-12-14 12:46:43,499 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 234 for LOIs [2022-12-14 12:46:44,076 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 231 for LOIs [2022-12-14 12:46:47,424 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 212 for LOIs [2022-12-14 12:46:47,453 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 227 for LOIs [2022-12-14 12:46:47,544 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:47:27,545 WARN L233 SmtUtils]: Spent 7.20s on a formula simplification. DAG size of input: 647 DAG size of output: 412 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:47:39,227 WARN L233 SmtUtils]: Spent 11.19s on a formula simplification. DAG size of input: 649 DAG size of output: 520 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:47:45,124 WARN L233 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 576 DAG size of output: 439 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:48:36,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2044933695] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:48:36,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:48:36,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [16, 5, 5] total 67 [2022-12-14 12:48:36,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384531976] [2022-12-14 12:48:36,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:48:36,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-12-14 12:48:36,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:48:36,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-12-14 12:48:36,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=4137, Unknown=0, NotChecked=0, Total=4422 [2022-12-14 12:48:36,225 INFO L87 Difference]: Start difference. First operand 532 states and 828 transitions. Second operand has 49 states, 32 states have (on average 1.1875) internal successors, (38), 30 states have internal predecessors, (38), 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) [2022-12-14 12:48:45,752 WARN L233 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 632 DAG size of output: 435 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)