./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product35.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_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/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_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/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_400537e4-8302-4a5d-b919-4ff12dc451d3/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 97d4c6be733483d74e70aacf7c001bc7f4ca03733e33a8c0b4370e9380a7e003 --- 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 06:43:48,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:43:48,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:43:48,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:43:48,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:43:48,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:43:48,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:43:48,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:43:48,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:43:48,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:43:48,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:43:48,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:43:48,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:43:48,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:43:48,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:43:48,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:43:48,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:43:48,185 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:43:48,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:43:48,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:43:48,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:43:48,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:43:48,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:43:48,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:43:48,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:43:48,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:43:48,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:43:48,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:43:48,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:43:48,194 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:43:48,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:43:48,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:43:48,195 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:43:48,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:43:48,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:43:48,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:43:48,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:43:48,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:43:48,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:43:48,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:43:48,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:43:48,200 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 06:43:48,214 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:43:48,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:43:48,214 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:43:48,214 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:43:48,215 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:43:48,215 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:43:48,215 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:43:48,215 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:43:48,215 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:43:48,215 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:43:48,215 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:43:48,215 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:43:48,216 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:43:48,216 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:43:48,216 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:43:48,216 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:43:48,216 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:43:48,216 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:43:48,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:43:48,217 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:43:48,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:43:48,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:43:48,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:43:48,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:43:48,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:43:48,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:43:48,217 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:43:48,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:43:48,217 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:43:48,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:43:48,218 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:43:48,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:43:48,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:43:48,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:43:48,218 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:43:48,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:43:48,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:43:48,218 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:43:48,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:43:48,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:43:48,218 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:43:48,219 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_400537e4-8302-4a5d-b919-4ff12dc451d3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97d4c6be733483d74e70aacf7c001bc7f4ca03733e33a8c0b4370e9380a7e003 [2022-12-14 06:43:48,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:43:48,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:43:48,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:43:48,422 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:43:48,422 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:43:48,424 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec11_product35.cil.c [2022-12-14 06:43:51,059 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:43:51,299 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:43:51,299 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/sv-benchmarks/c/product-lines/email_spec11_product35.cil.c [2022-12-14 06:43:51,313 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/data/afcbf3550/49f7a57446b1490fb5fbf714f44a7af3/FLAG5493ca6c0 [2022-12-14 06:43:51,323 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/data/afcbf3550/49f7a57446b1490fb5fbf714f44a7af3 [2022-12-14 06:43:51,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:43:51,326 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:43:51,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:43:51,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:43:51,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:43:51,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:43:51" (1/1) ... [2022-12-14 06:43:51,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47fe4fc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:43:51, skipping insertion in model container [2022-12-14 06:43:51,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:43:51" (1/1) ... [2022-12-14 06:43:51,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:43:51,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:43:51,626 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:43:51,704 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:43:51,710 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:43:51,710 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:43:51,711 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:43:51,721 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:43:51,722 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:43:51,724 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_400537e4-8302-4a5d-b919-4ff12dc451d3/sv-benchmarks/c/product-lines/email_spec11_product35.cil.c[61136,61149] [2022-12-14 06:43:51,743 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:43:51,743 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:43:51,745 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:43:51,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:43:51,759 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:43:51,795 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:43:51,813 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:43:51,815 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:43:51,816 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:43:51,817 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:43:51,822 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:43:51,824 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:43:51,825 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_400537e4-8302-4a5d-b919-4ff12dc451d3/sv-benchmarks/c/product-lines/email_spec11_product35.cil.c[61136,61149] [2022-12-14 06:43:51,828 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:43:51,829 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:43:51,830 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:43:51,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:43:51,883 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:43:51,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:43:51 WrapperNode [2022-12-14 06:43:51,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:43:51,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:43:51,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:43:51,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:43:51,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:43:51" (1/1) ... [2022-12-14 06:43:51,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:43:51" (1/1) ... [2022-12-14 06:43:51,952 INFO L138 Inliner]: procedures = 137, calls = 246, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1142 [2022-12-14 06:43:51,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:43:51,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:43:51,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:43:51,953 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:43:51,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:43:51" (1/1) ... [2022-12-14 06:43:51,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:43:51" (1/1) ... [2022-12-14 06:43:51,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:43:51" (1/1) ... [2022-12-14 06:43:51,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:43:51" (1/1) ... [2022-12-14 06:43:51,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:43:51" (1/1) ... [2022-12-14 06:43:51,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:43:51" (1/1) ... [2022-12-14 06:43:51,999 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:43:51" (1/1) ... [2022-12-14 06:43:52,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:43:51" (1/1) ... [2022-12-14 06:43:52,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:43:52,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:43:52,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:43:52,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:43:52,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:43:51" (1/1) ... [2022-12-14 06:43:52,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:43:52,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:43:52,044 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:43:52,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:43:52,073 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 06:43:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 06:43:52,074 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 06:43:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 06:43:52,074 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 06:43:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 06:43:52,074 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 06:43:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 06:43:52,075 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 06:43:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 06:43:52,075 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 06:43:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 06:43:52,075 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-14 06:43:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-14 06:43:52,075 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 06:43:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 06:43:52,076 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 06:43:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 06:43:52,076 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 06:43:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 06:43:52,076 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 06:43:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 06:43:52,076 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 06:43:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 06:43:52,077 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 06:43:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 06:43:52,077 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 06:43:52,077 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 06:43:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 06:43:52,077 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-14 06:43:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-14 06:43:52,077 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 06:43:52,078 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 06:43:52,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:43:52,078 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 06:43:52,078 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 06:43:52,078 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 06:43:52,078 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 06:43:52,078 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 06:43:52,078 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 06:43:52,078 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 06:43:52,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 06:43:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 06:43:52,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 06:43:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 06:43:52,079 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 06:43:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 06:43:52,079 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 06:43:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 06:43:52,079 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 06:43:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 06:43:52,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 06:43:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 06:43:52,080 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 06:43:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 06:43:52,080 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 06:43:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:43:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 06:43:52,080 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 06:43:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 06:43:52,080 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 06:43:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:43:52,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:43:52,246 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:43:52,249 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:43:52,896 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:43:53,295 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:43:53,295 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:43:53,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:43:53 BoogieIcfgContainer [2022-12-14 06:43:53,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:43:53,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:43:53,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:43:53,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:43:53,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:43:51" (1/3) ... [2022-12-14 06:43:53,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e419baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:43:53, skipping insertion in model container [2022-12-14 06:43:53,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:43:51" (2/3) ... [2022-12-14 06:43:53,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e419baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:43:53, skipping insertion in model container [2022-12-14 06:43:53,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:43:53" (3/3) ... [2022-12-14 06:43:53,306 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product35.cil.c [2022-12-14 06:43:53,322 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:43:53,322 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:43:53,365 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:43:53,370 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;@57917ac2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:43:53,371 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:43:53,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 239 states, 134 states have (on average 1.2835820895522387) internal successors, (172), 139 states have internal predecessors, (172), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2022-12-14 06:43:53,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 06:43:53,389 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:43:53,390 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:43:53,390 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:43:53,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:43:53,395 INFO L85 PathProgramCache]: Analyzing trace with hash 890649719, now seen corresponding path program 1 times [2022-12-14 06:43:53,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:43:53,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098480415] [2022-12-14 06:43:53,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:43:53,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:43:53,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:43:53,637 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 06:43:53,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:43:53,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098480415] [2022-12-14 06:43:53,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098480415] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:43:53,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:43:53,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:43:53,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492243698] [2022-12-14 06:43:53,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:43:53,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 06:43:53,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:43:53,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 06:43:53,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:43:53,668 INFO L87 Difference]: Start difference. First operand has 239 states, 134 states have (on average 1.2835820895522387) internal successors, (172), 139 states have internal predecessors, (172), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 06:43:53,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:43:53,804 INFO L93 Difference]: Finished difference Result 386 states and 511 transitions. [2022-12-14 06:43:53,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 06:43:53,806 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 95 [2022-12-14 06:43:53,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:43:53,815 INFO L225 Difference]: With dead ends: 386 [2022-12-14 06:43:53,815 INFO L226 Difference]: Without dead ends: 236 [2022-12-14 06:43:53,819 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 06:43:53,821 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:43:53,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 270 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:43:53,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-12-14 06:43:53,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2022-12-14 06:43:53,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 132 states have (on average 1.2575757575757576) internal successors, (166), 136 states have internal predecessors, (166), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2022-12-14 06:43:53,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 313 transitions. [2022-12-14 06:43:53,861 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 313 transitions. Word has length 95 [2022-12-14 06:43:53,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:43:53,862 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 313 transitions. [2022-12-14 06:43:53,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 06:43:53,862 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 313 transitions. [2022-12-14 06:43:53,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-12-14 06:43:53,865 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:43:53,866 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:43:53,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:43:53,866 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:43:53,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:43:53,866 INFO L85 PathProgramCache]: Analyzing trace with hash -286271054, now seen corresponding path program 1 times [2022-12-14 06:43:53,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:43:53,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067571511] [2022-12-14 06:43:53,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:43:53,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:43:53,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:43:54,112 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 06:43:54,112 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:43:54,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067571511] [2022-12-14 06:43:54,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067571511] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:43:54,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:43:54,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:43:54,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917107001] [2022-12-14 06:43:54,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:43:54,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:43:54,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:43:54,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:43:54,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:43:54,116 INFO L87 Difference]: Start difference. First operand 236 states and 313 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 06:43:54,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:43:54,243 INFO L93 Difference]: Finished difference Result 382 states and 496 transitions. [2022-12-14 06:43:54,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:43:54,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 107 [2022-12-14 06:43:54,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:43:54,247 INFO L225 Difference]: With dead ends: 382 [2022-12-14 06:43:54,248 INFO L226 Difference]: Without dead ends: 238 [2022-12-14 06:43:54,249 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 06:43:54,249 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 0 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:43:54,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 533 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:43:54,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-12-14 06:43:54,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2022-12-14 06:43:54,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 134 states have (on average 1.2537313432835822) internal successors, (168), 138 states have internal predecessors, (168), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2022-12-14 06:43:54,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 315 transitions. [2022-12-14 06:43:54,264 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 315 transitions. Word has length 107 [2022-12-14 06:43:54,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:43:54,265 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 315 transitions. [2022-12-14 06:43:54,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 06:43:54,265 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 315 transitions. [2022-12-14 06:43:54,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-14 06:43:54,267 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:43:54,267 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:43:54,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:43:54,268 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:43:54,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:43:54,268 INFO L85 PathProgramCache]: Analyzing trace with hash -433562848, now seen corresponding path program 1 times [2022-12-14 06:43:54,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:43:54,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324955342] [2022-12-14 06:43:54,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:43:54,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:43:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:43:54,385 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 06:43:54,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:43:54,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324955342] [2022-12-14 06:43:54,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324955342] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:43:54,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:43:54,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:43:54,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370099215] [2022-12-14 06:43:54,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:43:54,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:43:54,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:43:54,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:43:54,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:43:54,387 INFO L87 Difference]: Start difference. First operand 238 states and 315 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 06:43:54,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:43:54,506 INFO L93 Difference]: Finished difference Result 511 states and 697 transitions. [2022-12-14 06:43:54,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:43:54,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 101 [2022-12-14 06:43:54,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:43:54,509 INFO L225 Difference]: With dead ends: 511 [2022-12-14 06:43:54,510 INFO L226 Difference]: Without dead ends: 291 [2022-12-14 06:43:54,511 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 06:43:54,512 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 59 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:43:54,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 549 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:43:54,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-12-14 06:43:54,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 286. [2022-12-14 06:43:54,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 168 states have (on average 1.3273809523809523) internal successors, (223), 172 states have internal predecessors, (223), 88 states have call successors, (88), 29 states have call predecessors, (88), 29 states have return successors, (87), 86 states have call predecessors, (87), 87 states have call successors, (87) [2022-12-14 06:43:54,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 398 transitions. [2022-12-14 06:43:54,539 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 398 transitions. Word has length 101 [2022-12-14 06:43:54,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:43:54,540 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 398 transitions. [2022-12-14 06:43:54,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 06:43:54,540 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 398 transitions. [2022-12-14 06:43:54,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-12-14 06:43:54,543 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:43:54,543 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:43:54,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 06:43:54,543 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:43:54,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:43:54,544 INFO L85 PathProgramCache]: Analyzing trace with hash 724888568, now seen corresponding path program 1 times [2022-12-14 06:43:54,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:43:54,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983180907] [2022-12-14 06:43:54,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:43:54,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:43:54,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:43:54,734 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 06:43:54,735 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:43:54,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983180907] [2022-12-14 06:43:54,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983180907] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:43:54,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228317269] [2022-12-14 06:43:54,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:43:54,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:43:54,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:43:54,736 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:43:54,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 06:43:54,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:43:55,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:43:55,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:43:55,067 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 06:43:55,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:43:55,141 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 06:43:55,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228317269] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:43:55,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2061150253] [2022-12-14 06:43:55,163 INFO L159 IcfgInterpreter]: Started Sifa with 81 locations of interest [2022-12-14 06:43:55,163 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:43:55,167 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:43:55,172 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:43:55,173 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:44:27,228 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 06:44:27,531 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 06:44:27,852 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:45:07,410 WARN L233 SmtUtils]: Spent 11.49s on a formula simplification. DAG size of input: 588 DAG size of output: 463 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:45:22,544 WARN L233 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 545 DAG size of output: 420 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:45:22,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2061150253] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:45:22,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:45:22,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 06:45:22,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198270034] [2022-12-14 06:45:22,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:45:22,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 06:45:22,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:45:22,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 06:45:22,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=570, Unknown=0, NotChecked=0, Total=650 [2022-12-14 06:45:22,552 INFO L87 Difference]: Start difference. First operand 286 states and 398 transitions. Second operand has 21 states, 16 states have (on average 3.125) internal successors, (50), 15 states have internal predecessors, (50), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2022-12-14 06:45:29,620 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification. DAG size of input: 570 DAG size of output: 407 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:45:43,838 WARN L233 SmtUtils]: Spent 7.29s on a formula simplification. DAG size of input: 519 DAG size of output: 445 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:45:50,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:45:50,800 INFO L93 Difference]: Finished difference Result 651 states and 958 transitions. [2022-12-14 06:45:50,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-14 06:45:50,800 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 3.125) internal successors, (50), 15 states have internal predecessors, (50), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 102 [2022-12-14 06:45:50,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:45:50,803 INFO L225 Difference]: With dead ends: 651 [2022-12-14 06:45:50,804 INFO L226 Difference]: Without dead ends: 383 [2022-12-14 06:45:50,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 74.6s TimeCoverageRelationStatistics Valid=125, Invalid=805, Unknown=0, NotChecked=0, Total=930 [2022-12-14 06:45:50,806 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 237 mSDsluCounter, 3862 mSDsCounter, 0 mSdLazyCounter, 2267 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 4166 SdHoareTripleChecker+Invalid, 2290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:45:50,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 4166 Invalid, 2290 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 2267 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2022-12-14 06:45:50,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-12-14 06:45:50,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 309. [2022-12-14 06:45:50,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 190 states have (on average 1.3473684210526315) internal successors, (256), 194 states have internal predecessors, (256), 88 states have call successors, (88), 30 states have call predecessors, (88), 30 states have return successors, (87), 86 states have call predecessors, (87), 87 states have call successors, (87) [2022-12-14 06:45:50,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 431 transitions. [2022-12-14 06:45:50,917 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 431 transitions. Word has length 102 [2022-12-14 06:45:50,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:45:50,918 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 431 transitions. [2022-12-14 06:45:50,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 3.125) internal successors, (50), 15 states have internal predecessors, (50), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2022-12-14 06:45:50,918 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 431 transitions. [2022-12-14 06:45:50,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-12-14 06:45:50,921 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:45:50,921 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:45:50,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 06:45:51,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:45:51,123 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:45:51,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:45:51,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1811202631, now seen corresponding path program 1 times [2022-12-14 06:45:51,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:45:51,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380920730] [2022-12-14 06:45:51,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:45:51,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:45:51,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:45:51,244 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-14 06:45:51,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:45:51,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380920730] [2022-12-14 06:45:51,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380920730] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:45:51,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:45:51,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:45:51,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856274689] [2022-12-14 06:45:51,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:45:51,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:45:51,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:45:51,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:45:51,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:45:51,246 INFO L87 Difference]: Start difference. First operand 309 states and 431 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 06:45:51,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:45:51,613 INFO L93 Difference]: Finished difference Result 721 states and 1042 transitions. [2022-12-14 06:45:51,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:45:51,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 118 [2022-12-14 06:45:51,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:45:51,616 INFO L225 Difference]: With dead ends: 721 [2022-12-14 06:45:51,616 INFO L226 Difference]: Without dead ends: 436 [2022-12-14 06:45:51,617 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 06:45:51,617 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 57 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:45:51,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 551 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:45:51,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-12-14 06:45:51,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 431. [2022-12-14 06:45:51,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 281 states have (on average 1.4092526690391458) internal successors, (396), 285 states have internal predecessors, (396), 119 states have call successors, (119), 30 states have call predecessors, (119), 30 states have return successors, (118), 117 states have call predecessors, (118), 118 states have call successors, (118) [2022-12-14 06:45:51,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 633 transitions. [2022-12-14 06:45:51,774 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 633 transitions. Word has length 118 [2022-12-14 06:45:51,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:45:51,774 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 633 transitions. [2022-12-14 06:45:51,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 06:45:51,774 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 633 transitions. [2022-12-14 06:45:51,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-12-14 06:45:51,776 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:45:51,776 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:45:51,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 06:45:51,776 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:45:51,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:45:51,777 INFO L85 PathProgramCache]: Analyzing trace with hash 2088362622, now seen corresponding path program 1 times [2022-12-14 06:45:51,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:45:51,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885243635] [2022-12-14 06:45:51,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:45:51,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:45:51,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:45:51,884 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-14 06:45:51,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:45:51,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885243635] [2022-12-14 06:45:51,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885243635] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:45:51,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369323673] [2022-12-14 06:45:51,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:45:51,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:45:51,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:45:51,886 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:45:51,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 06:45:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:45:52,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 1324 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:45:52,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:45:52,186 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-14 06:45:52,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:45:52,247 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-14 06:45:52,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369323673] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:45:52,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [90713771] [2022-12-14 06:45:52,251 INFO L159 IcfgInterpreter]: Started Sifa with 92 locations of interest [2022-12-14 06:45:52,252 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:45:52,252 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:45:52,253 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:45:52,253 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:46:35,026 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 06:46:35,317 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 450 for LOIs [2022-12-14 06:46:35,604 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:47:11,426 WARN L233 SmtUtils]: Spent 8.23s on a formula simplification. DAG size of input: 579 DAG size of output: 408 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:47:20,684 WARN L233 SmtUtils]: Spent 6.81s on a formula simplification. DAG size of input: 578 DAG size of output: 439 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:47:31,989 WARN L233 SmtUtils]: Spent 5.86s on a formula simplification. DAG size of input: 577 DAG size of output: 441 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:47:41,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [90713771] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:47:41,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:47:41,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 06:47:41,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414263541] [2022-12-14 06:47:41,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:47:41,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 06:47:41,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:47:41,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 06:47:41,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-12-14 06:47:41,140 INFO L87 Difference]: Start difference. First operand 431 states and 633 transitions. Second operand has 25 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 8 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2022-12-14 06:47:47,218 WARN L233 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 476 DAG size of output: 368 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:48:10,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:48:10,555 INFO L93 Difference]: Finished difference Result 895 states and 1348 transitions. [2022-12-14 06:48:10,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 06:48:10,555 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 8 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 119 [2022-12-14 06:48:10,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:48:10,557 INFO L225 Difference]: With dead ends: 895 [2022-12-14 06:48:10,557 INFO L226 Difference]: Without dead ends: 527 [2022-12-14 06:48:10,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 329 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 87.0s TimeCoverageRelationStatistics Valid=208, Invalid=1198, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 06:48:10,559 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 190 mSDsluCounter, 3768 mSDsCounter, 0 mSdLazyCounter, 2266 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 4041 SdHoareTripleChecker+Invalid, 2290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:48:10,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 4041 Invalid, 2290 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 2266 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-12-14 06:48:10,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2022-12-14 06:48:10,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 445. [2022-12-14 06:48:10,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 293 states have (on average 1.4095563139931742) internal successors, (413), 297 states have internal predecessors, (413), 120 states have call successors, (120), 31 states have call predecessors, (120), 31 states have return successors, (119), 118 states have call predecessors, (119), 119 states have call successors, (119) [2022-12-14 06:48:10,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 652 transitions. [2022-12-14 06:48:10,755 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 652 transitions. Word has length 119 [2022-12-14 06:48:10,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:48:10,756 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 652 transitions. [2022-12-14 06:48:10,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 8 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2022-12-14 06:48:10,756 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 652 transitions. [2022-12-14 06:48:10,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 06:48:10,757 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:48:10,757 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:48:10,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 06:48:10,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:48:10,959 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:48:10,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:48:10,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1966512508, now seen corresponding path program 1 times [2022-12-14 06:48:10,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:48:10,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825983769] [2022-12-14 06:48:10,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:48:10,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:48:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:48:11,094 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 06:48:11,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:48:11,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825983769] [2022-12-14 06:48:11,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825983769] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:48:11,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110255331] [2022-12-14 06:48:11,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:48:11,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:48:11,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:48:11,096 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:48:11,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 06:48:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:48:11,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 1367 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:48:11,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:48:11,347 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 06:48:11,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:48:11,390 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 06:48:11,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110255331] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:48:11,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1152215547] [2022-12-14 06:48:11,394 INFO L159 IcfgInterpreter]: Started Sifa with 90 locations of interest [2022-12-14 06:48:11,394 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:48:11,395 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:48:11,395 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:48:11,395 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:48:50,287 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 06:48:50,569 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 234 for LOIs [2022-12-14 06:48:50,632 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 243 for LOIs [2022-12-14 06:48:50,695 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 233 for LOIs [2022-12-14 06:48:50,758 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 06:48:51,047 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:49:28,512 WARN L233 SmtUtils]: Spent 9.57s on a formula simplification. DAG size of input: 619 DAG size of output: 499 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:49:44,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1152215547] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:49:44,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:49:44,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 06:49:44,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317892956] [2022-12-14 06:49:44,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:49:44,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 06:49:44,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:49:44,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 06:49:44,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1076, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 06:49:44,457 INFO L87 Difference]: Start difference. First operand 445 states and 652 transitions. Second operand has 30 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 10 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) [2022-12-14 06:49:58,729 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 582 DAG size of output: 440 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:50:06,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:50:06,556 INFO L93 Difference]: Finished difference Result 905 states and 1358 transitions. [2022-12-14 06:50:06,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 06:50:06,557 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 10 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) Word has length 111 [2022-12-14 06:50:06,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:50:06,564 INFO L225 Difference]: With dead ends: 905 [2022-12-14 06:50:06,564 INFO L226 Difference]: Without dead ends: 537 [2022-12-14 06:50:06,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 300 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 65.2s TimeCoverageRelationStatistics Valid=138, Invalid=1268, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 06:50:06,565 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 94 mSDsluCounter, 3903 mSDsCounter, 0 mSdLazyCounter, 3451 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 4169 SdHoareTripleChecker+Invalid, 3461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-12-14 06:50:06,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 4169 Invalid, 3461 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3451 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2022-12-14 06:50:06,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2022-12-14 06:50:06,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 481. [2022-12-14 06:50:06,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 323 states have (on average 1.4086687306501549) internal successors, (455), 327 states have internal predecessors, (455), 123 states have call successors, (123), 34 states have call predecessors, (123), 34 states have return successors, (122), 121 states have call predecessors, (122), 122 states have call successors, (122) [2022-12-14 06:50:06,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 700 transitions. [2022-12-14 06:50:06,803 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 700 transitions. Word has length 111 [2022-12-14 06:50:06,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:50:06,803 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 700 transitions. [2022-12-14 06:50:06,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 10 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) [2022-12-14 06:50:06,803 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 700 transitions. [2022-12-14 06:50:06,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-12-14 06:50:06,805 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:50:06,805 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:50:06,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 06:50:07,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:50:07,006 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:50:07,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:50:07,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1469385549, now seen corresponding path program 1 times [2022-12-14 06:50:07,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:50:07,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045715568] [2022-12-14 06:50:07,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:50:07,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:50:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:50:07,125 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 06:50:07,125 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:50:07,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045715568] [2022-12-14 06:50:07,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045715568] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:50:07,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24526451] [2022-12-14 06:50:07,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:50:07,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:50:07,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:50:07,126 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:50:07,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 06:50:07,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:50:07,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 1335 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:50:07,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:50:07,397 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 06:50:07,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:50:07,465 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 06:50:07,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24526451] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:50:07,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1537451803] [2022-12-14 06:50:07,469 INFO L159 IcfgInterpreter]: Started Sifa with 96 locations of interest [2022-12-14 06:50:07,469 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:50:07,470 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:50:07,470 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:50:07,470 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:51:00,097 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 06:51:00,380 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 267 for LOIs [2022-12-14 06:51:02,127 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 06:51:02,408 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 269 for LOIs [2022-12-14 06:51:05,583 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-12-14 06:51:05,620 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 229 for LOIs [2022-12-14 06:51:05,657 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 237 for LOIs [2022-12-14 06:51:05,694 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 254 for LOIs [2022-12-14 06:51:05,741 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:51:40,575 WARN L233 SmtUtils]: Spent 6.45s on a formula simplification. DAG size of input: 569 DAG size of output: 435 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:51:46,485 WARN L233 SmtUtils]: Spent 5.64s on a formula simplification. DAG size of input: 576 DAG size of output: 441 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:51:52,593 WARN L233 SmtUtils]: Spent 5.82s on a formula simplification. DAG size of input: 572 DAG size of output: 438 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:52:41,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1537451803] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:52:41,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:52:41,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [4, 4, 4] total 54 [2022-12-14 06:52:41,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470713415] [2022-12-14 06:52:41,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:52:41,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-12-14 06:52:41,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:52:41,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-12-14 06:52:41,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=2694, Unknown=0, NotChecked=0, Total=2862 [2022-12-14 06:52:41,456 INFO L87 Difference]: Start difference. First operand 481 states and 700 transitions. Second operand has 49 states, 35 states have (on average 1.7428571428571429) internal successors, (61), 33 states have internal predecessors, (61), 13 states have call successors, (24), 9 states have call predecessors, (24), 7 states have return successors, (21), 11 states have call predecessors, (21), 11 states have call successors, (21) [2022-12-14 06:54:33,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:54:33,543 INFO L93 Difference]: Finished difference Result 951 states and 1423 transitions. [2022-12-14 06:54:33,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-12-14 06:54:33,544 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 35 states have (on average 1.7428571428571429) internal successors, (61), 33 states have internal predecessors, (61), 13 states have call successors, (24), 9 states have call predecessors, (24), 7 states have return successors, (21), 11 states have call predecessors, (21), 11 states have call successors, (21) Word has length 121 [2022-12-14 06:54:33,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:54:33,545 INFO L225 Difference]: With dead ends: 951 [2022-12-14 06:54:33,545 INFO L226 Difference]: Without dead ends: 583 [2022-12-14 06:54:33,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1318 ImplicationChecksByTransitivity, 186.4s TimeCoverageRelationStatistics Valid=587, Invalid=5575, Unknown=0, NotChecked=0, Total=6162 [2022-12-14 06:54:33,548 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 308 mSDsluCounter, 6176 mSDsCounter, 0 mSdLazyCounter, 6966 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 6442 SdHoareTripleChecker+Invalid, 6993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 6966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2022-12-14 06:54:33,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 6442 Invalid, 6993 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 6966 Invalid, 0 Unknown, 0 Unchecked, 20.7s Time] [2022-12-14 06:54:33,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2022-12-14 06:54:33,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 532. [2022-12-14 06:54:33,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 364 states have (on average 1.4065934065934067) internal successors, (512), 368 states have internal predecessors, (512), 129 states have call successors, (129), 40 states have call predecessors, (129), 38 states have return successors, (128), 125 states have call predecessors, (128), 128 states have call successors, (128) [2022-12-14 06:54:33,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 769 transitions. [2022-12-14 06:54:33,939 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 769 transitions. Word has length 121 [2022-12-14 06:54:33,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:54:33,939 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 769 transitions. [2022-12-14 06:54:33,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 35 states have (on average 1.7428571428571429) internal successors, (61), 33 states have internal predecessors, (61), 13 states have call successors, (24), 9 states have call predecessors, (24), 7 states have return successors, (21), 11 states have call predecessors, (21), 11 states have call successors, (21) [2022-12-14 06:54:33,940 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 769 transitions. [2022-12-14 06:54:33,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-12-14 06:54:33,943 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:54:33,943 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:54:33,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 06:54:34,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 06:54:34,144 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:54:34,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:54:34,146 INFO L85 PathProgramCache]: Analyzing trace with hash -2038535808, now seen corresponding path program 1 times [2022-12-14 06:54:34,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:54:34,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561768377] [2022-12-14 06:54:34,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:54:34,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:54:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:54:34,520 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-12-14 06:54:34,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:54:34,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561768377] [2022-12-14 06:54:34,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561768377] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:54:34,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:54:34,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 06:54:34,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873187240] [2022-12-14 06:54:34,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:54:34,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 06:54:34,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:54:34,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 06:54:34,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-14 06:54:34,522 INFO L87 Difference]: Start difference. First operand 532 states and 769 transitions. Second operand has 12 states, 10 states have (on average 5.7) internal successors, (57), 9 states have internal predecessors, (57), 6 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2022-12-14 06:54:35,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:54:35,618 INFO L93 Difference]: Finished difference Result 1031 states and 1476 transitions. [2022-12-14 06:54:35,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 06:54:35,618 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.7) internal successors, (57), 9 states have internal predecessors, (57), 6 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 124 [2022-12-14 06:54:35,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:54:35,622 INFO L225 Difference]: With dead ends: 1031 [2022-12-14 06:54:35,622 INFO L226 Difference]: Without dead ends: 890 [2022-12-14 06:54:35,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-12-14 06:54:35,624 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 297 mSDsluCounter, 2330 mSDsCounter, 0 mSdLazyCounter, 1459 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 2661 SdHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:54:35,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 2661 Invalid, 1482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1459 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 06:54:35,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2022-12-14 06:54:36,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 879. [2022-12-14 06:54:36,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 581 states have (on average 1.4182444061962134) internal successors, (824), 590 states have internal predecessors, (824), 233 states have call successors, (233), 67 states have call predecessors, (233), 64 states have return successors, (229), 225 states have call predecessors, (229), 229 states have call successors, (229) [2022-12-14 06:54:36,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1286 transitions. [2022-12-14 06:54:36,055 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1286 transitions. Word has length 124 [2022-12-14 06:54:36,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:54:36,056 INFO L495 AbstractCegarLoop]: Abstraction has 879 states and 1286 transitions. [2022-12-14 06:54:36,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.7) internal successors, (57), 9 states have internal predecessors, (57), 6 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2022-12-14 06:54:36,056 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1286 transitions. [2022-12-14 06:54:36,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-12-14 06:54:36,058 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:54:36,058 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:54:36,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 06:54:36,058 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:54:36,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:54:36,058 INFO L85 PathProgramCache]: Analyzing trace with hash 624323728, now seen corresponding path program 1 times [2022-12-14 06:54:36,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:54:36,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500782223] [2022-12-14 06:54:36,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:54:36,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:54:36,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:54:36,161 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 06:54:36,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:54:36,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500782223] [2022-12-14 06:54:36,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500782223] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:54:36,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288724453] [2022-12-14 06:54:36,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:54:36,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:54:36,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:54:36,163 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:54:36,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400537e4-8302-4a5d-b919-4ff12dc451d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 06:54:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:54:36,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 1272 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:54:36,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:54:36,405 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 06:54:36,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:54:36,444 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 06:54:36,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288724453] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:54:36,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1140868009] [2022-12-14 06:54:36,447 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2022-12-14 06:54:36,447 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:54:36,448 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:54:36,448 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:54:36,448 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:55:18,203 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 06:55:18,489 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 267 for LOIs [2022-12-14 06:55:20,211 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-12-14 06:55:20,248 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 06:55:20,526 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 267 for LOIs [2022-12-14 06:55:24,505 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 277 for LOIs [2022-12-14 06:55:35,673 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 251 for LOIs [2022-12-14 06:55:36,333 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 251 for LOIs [2022-12-14 06:55:36,376 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 452 for LOIs [2022-12-14 06:55:36,954 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 249 for LOIs [2022-12-14 06:55:37,024 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 431 for LOIs [2022-12-14 06:55:37,689 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 478 for LOIs [2022-12-14 06:55:42,799 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 254 for LOIs [2022-12-14 06:55:42,846 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:56:18,998 WARN L233 SmtUtils]: Spent 6.82s on a formula simplification. DAG size of input: 569 DAG size of output: 435 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:56:26,088 WARN L233 SmtUtils]: Spent 6.82s on a formula simplification. DAG size of input: 576 DAG size of output: 441 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:56:31,647 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 572 DAG size of output: 438 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:57:12,827 WARN L233 SmtUtils]: Spent 6.69s on a formula simplification. DAG size of input: 473 DAG size of output: 364 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:57:31,730 WARN L233 SmtUtils]: Spent 5.73s on a formula simplification. DAG size of input: 452 DAG size of output: 346 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:57:39,486 WARN L233 SmtUtils]: Spent 7.29s on a formula simplification. DAG size of input: 478 DAG size of output: 362 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)