./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product30.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_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/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_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product30.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/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_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/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 15275a4436f6ed835fc824ec788a3589ee34ef53cd98082c25cb994e481acd9a --- 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 13:49:07,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:49:07,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:49:07,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:49:07,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:49:07,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:49:07,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:49:07,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:49:07,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:49:07,143 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:49:07,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:49:07,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:49:07,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:49:07,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:49:07,147 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:49:07,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:49:07,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:49:07,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:49:07,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:49:07,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:49:07,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:49:07,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:49:07,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:49:07,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:49:07,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:49:07,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:49:07,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:49:07,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:49:07,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:49:07,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:49:07,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:49:07,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:49:07,169 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:49:07,170 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:49:07,171 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:49:07,171 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:49:07,171 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:49:07,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:49:07,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:49:07,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:49:07,172 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:49:07,173 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 13:49:07,195 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:49:07,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:49:07,195 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:49:07,196 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:49:07,196 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:49:07,196 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:49:07,197 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:49:07,197 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:49:07,197 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:49:07,197 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:49:07,197 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:49:07,197 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:49:07,198 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:49:07,198 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:49:07,198 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:49:07,198 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:49:07,198 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:49:07,198 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:49:07,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:49:07,199 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:49:07,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:49:07,199 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:49:07,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:49:07,200 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:49:07,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:49:07,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:49:07,200 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:49:07,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:49:07,200 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:49:07,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:49:07,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:49:07,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:49:07,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:49:07,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:49:07,202 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:49:07,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:49:07,202 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:49:07,202 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:49:07,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:49:07,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:49:07,202 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:49:07,202 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_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15275a4436f6ed835fc824ec788a3589ee34ef53cd98082c25cb994e481acd9a [2022-12-14 13:49:07,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:49:07,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:49:07,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:49:07,410 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:49:07,410 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:49:07,411 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec8_product30.cil.c [2022-12-14 13:49:10,031 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:49:10,217 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:49:10,218 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/sv-benchmarks/c/product-lines/email_spec8_product30.cil.c [2022-12-14 13:49:10,228 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/data/312148943/c4c893beed1c4ef7a16578b7314dcf3e/FLAGe1e2e7bcd [2022-12-14 13:49:10,239 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/data/312148943/c4c893beed1c4ef7a16578b7314dcf3e [2022-12-14 13:49:10,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:49:10,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:49:10,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:49:10,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:49:10,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:49:10,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:49:10" (1/1) ... [2022-12-14 13:49:10,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@657786f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:49:10, skipping insertion in model container [2022-12-14 13:49:10,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:49:10" (1/1) ... [2022-12-14 13:49:10,254 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:49:10,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:49:10,500 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:49:10,504 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:49:10,510 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:49:10,526 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:49:10,529 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:49:10,531 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_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/sv-benchmarks/c/product-lines/email_spec8_product30.cil.c[7858,7871] [2022-12-14 13:49:10,666 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:49:10,673 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:49:10,688 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:49:10,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:49:10,787 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:49:10,800 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:49:10,801 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:49:10,804 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:49:10,808 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:49:10,809 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:49:10,810 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_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/sv-benchmarks/c/product-lines/email_spec8_product30.cil.c[7858,7871] [2022-12-14 13:49:10,838 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:49:10,840 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:49:10,845 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:49:10,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:49:10,927 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:49:10,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:49:10 WrapperNode [2022-12-14 13:49:10,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:49:10,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:49:10,928 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:49:10,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:49:10,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:49:10" (1/1) ... [2022-12-14 13:49:10,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:49:10" (1/1) ... [2022-12-14 13:49:11,012 INFO L138 Inliner]: procedures = 132, calls = 223, calls flagged for inlining = 61, calls inlined = 51, statements flattened = 923 [2022-12-14 13:49:11,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:49:11,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:49:11,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:49:11,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:49:11,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:49:10" (1/1) ... [2022-12-14 13:49:11,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:49:10" (1/1) ... [2022-12-14 13:49:11,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:49:10" (1/1) ... [2022-12-14 13:49:11,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:49:10" (1/1) ... [2022-12-14 13:49:11,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:49:10" (1/1) ... [2022-12-14 13:49:11,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:49:10" (1/1) ... [2022-12-14 13:49:11,060 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:49:10" (1/1) ... [2022-12-14 13:49:11,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:49:10" (1/1) ... [2022-12-14 13:49:11,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:49:11,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:49:11,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:49:11,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:49:11,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:49:10" (1/1) ... [2022-12-14 13:49:11,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:49:11,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:49:11,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:49:11,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:49:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 13:49:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 13:49:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 13:49:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 13:49:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 13:49:11,146 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 13:49:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 13:49:11,146 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 13:49:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 13:49:11,146 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 13:49:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 13:49:11,146 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 13:49:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 13:49:11,147 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 13:49:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 13:49:11,147 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 13:49:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 13:49:11,147 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 13:49:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 13:49:11,148 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 13:49:11,148 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 13:49:11,148 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 13:49:11,148 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 13:49:11,148 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 13:49:11,148 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 13:49:11,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:49:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 13:49:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 13:49:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 13:49:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 13:49:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 13:49:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 13:49:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 13:49:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 13:49:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 13:49:11,150 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 13:49:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 13:49:11,150 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 13:49:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 13:49:11,150 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 13:49:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 13:49:11,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 13:49:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 13:49:11,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 13:49:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 13:49:11,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 13:49:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:49:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 13:49:11,151 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 13:49:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:49:11,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:49:11,318 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:49:11,321 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:49:11,896 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:49:12,161 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:49:12,161 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 13:49:12,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:49:12 BoogieIcfgContainer [2022-12-14 13:49:12,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:49:12,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:49:12,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:49:12,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:49:12,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:49:10" (1/3) ... [2022-12-14 13:49:12,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e0252a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:49:12, skipping insertion in model container [2022-12-14 13:49:12,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:49:10" (2/3) ... [2022-12-14 13:49:12,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e0252a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:49:12, skipping insertion in model container [2022-12-14 13:49:12,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:49:12" (3/3) ... [2022-12-14 13:49:12,169 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product30.cil.c [2022-12-14 13:49:12,184 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:49:12,184 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 13:49:12,220 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:49:12,225 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;@4beeb9fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:49:12,225 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 13:49:12,229 INFO L276 IsEmpty]: Start isEmpty. Operand has 189 states, 111 states have (on average 1.3333333333333333) internal successors, (148), 115 states have internal predecessors, (148), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-12-14 13:49:12,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 13:49:12,237 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:49:12,237 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:49:12,238 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:49:12,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:49:12,241 INFO L85 PathProgramCache]: Analyzing trace with hash 869319178, now seen corresponding path program 1 times [2022-12-14 13:49:12,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:49:12,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314120857] [2022-12-14 13:49:12,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:49:12,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:49:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:49:12,525 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:49:12,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:49:12,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314120857] [2022-12-14 13:49:12,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314120857] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:49:12,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:49:12,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:49:12,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251887874] [2022-12-14 13:49:12,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:49:12,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 13:49:12,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:49:12,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 13:49:12,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:49:12,555 INFO L87 Difference]: Start difference. First operand has 189 states, 111 states have (on average 1.3333333333333333) internal successors, (148), 115 states have internal predecessors, (148), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 13:49:12,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:49:12,658 INFO L93 Difference]: Finished difference Result 295 states and 386 transitions. [2022-12-14 13:49:12,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 13:49:12,661 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 64 [2022-12-14 13:49:12,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:49:12,669 INFO L225 Difference]: With dead ends: 295 [2022-12-14 13:49:12,669 INFO L226 Difference]: Without dead ends: 186 [2022-12-14 13:49:12,672 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 13:49:12,674 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:49:12,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:49:12,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-12-14 13:49:12,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2022-12-14 13:49:12,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 109 states have (on average 1.3027522935779816) internal successors, (142), 112 states have internal predecessors, (142), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-12-14 13:49:12,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 247 transitions. [2022-12-14 13:49:12,712 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 247 transitions. Word has length 64 [2022-12-14 13:49:12,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:49:12,713 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 247 transitions. [2022-12-14 13:49:12,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 13:49:12,714 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 247 transitions. [2022-12-14 13:49:12,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-14 13:49:12,715 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:49:12,716 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:49:12,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:49:12,716 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:49:12,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:49:12,716 INFO L85 PathProgramCache]: Analyzing trace with hash 947459229, now seen corresponding path program 1 times [2022-12-14 13:49:12,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:49:12,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054795395] [2022-12-14 13:49:12,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:49:12,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:49:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:49:12,829 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:49:12,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:49:12,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054795395] [2022-12-14 13:49:12,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054795395] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:49:12,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:49:12,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:49:12,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124651666] [2022-12-14 13:49:12,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:49:12,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:49:12,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:49:12,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:49:12,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:49:12,832 INFO L87 Difference]: Start difference. First operand 186 states and 247 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 13:49:12,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:49:12,932 INFO L93 Difference]: Finished difference Result 291 states and 374 transitions. [2022-12-14 13:49:12,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:49:12,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2022-12-14 13:49:12,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:49:12,935 INFO L225 Difference]: With dead ends: 291 [2022-12-14 13:49:12,935 INFO L226 Difference]: Without dead ends: 188 [2022-12-14 13:49:12,936 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 13:49:12,936 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:49:12,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 425 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:49:12,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-12-14 13:49:12,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2022-12-14 13:49:12,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 111 states have (on average 1.2972972972972974) internal successors, (144), 114 states have internal predecessors, (144), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-12-14 13:49:12,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 249 transitions. [2022-12-14 13:49:12,949 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 249 transitions. Word has length 65 [2022-12-14 13:49:12,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:49:12,950 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 249 transitions. [2022-12-14 13:49:12,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 13:49:12,950 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 249 transitions. [2022-12-14 13:49:12,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-14 13:49:12,951 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:49:12,951 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:49:12,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 13:49:12,952 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:49:12,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:49:12,952 INFO L85 PathProgramCache]: Analyzing trace with hash -574514382, now seen corresponding path program 1 times [2022-12-14 13:49:12,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:49:12,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157389095] [2022-12-14 13:49:12,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:49:12,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:49:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:49:13,024 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:49:13,024 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:49:13,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157389095] [2022-12-14 13:49:13,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157389095] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:49:13,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:49:13,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:49:13,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692783135] [2022-12-14 13:49:13,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:49:13,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:49:13,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:49:13,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:49:13,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:49:13,027 INFO L87 Difference]: Start difference. First operand 188 states and 249 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 13:49:13,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:49:13,136 INFO L93 Difference]: Finished difference Result 406 states and 557 transitions. [2022-12-14 13:49:13,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:49:13,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 70 [2022-12-14 13:49:13,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:49:13,138 INFO L225 Difference]: With dead ends: 406 [2022-12-14 13:49:13,138 INFO L226 Difference]: Without dead ends: 236 [2022-12-14 13:49:13,139 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 13:49:13,140 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 57 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:49:13,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 438 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:49:13,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-12-14 13:49:13,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 231. [2022-12-14 13:49:13,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 143 states have (on average 1.3776223776223777) internal successors, (197), 146 states have internal predecessors, (197), 64 states have call successors, (64), 23 states have call predecessors, (64), 23 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-12-14 13:49:13,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 324 transitions. [2022-12-14 13:49:13,155 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 324 transitions. Word has length 70 [2022-12-14 13:49:13,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:49:13,155 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 324 transitions. [2022-12-14 13:49:13,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 13:49:13,156 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 324 transitions. [2022-12-14 13:49:13,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 13:49:13,157 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:49:13,157 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:49:13,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 13:49:13,157 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:49:13,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:49:13,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1637972431, now seen corresponding path program 1 times [2022-12-14 13:49:13,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:49:13,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134635319] [2022-12-14 13:49:13,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:49:13,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:49:13,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:49:13,265 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:49:13,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:49:13,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134635319] [2022-12-14 13:49:13,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134635319] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:49:13,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422356000] [2022-12-14 13:49:13,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:49:13,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:49:13,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:49:13,267 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:49:13,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 13:49:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:49:13,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:49:13,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:49:13,560 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:49:13,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:49:13,616 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:49:13,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422356000] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:49:13,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1276587348] [2022-12-14 13:49:13,634 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-12-14 13:49:13,634 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:49:13,636 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:49:13,640 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:49:13,641 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:49:53,921 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 13:49:54,207 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 13:49:54,500 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 271 for LOIs [2022-12-14 13:49:56,492 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 239 for LOIs [2022-12-14 13:49:56,528 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 273 for LOIs [2022-12-14 13:50:15,207 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 231 for LOIs [2022-12-14 13:50:15,242 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 252 for LOIs [2022-12-14 13:50:15,313 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 257 for LOIs [2022-12-14 13:50:15,357 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 477 for LOIs [2022-12-14 13:50:18,571 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:51:05,640 WARN L233 SmtUtils]: Spent 10.75s on a formula simplification. DAG size of input: 593 DAG size of output: 465 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:52:08,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1276587348] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:52:08,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:52:08,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [4, 4, 4] total 53 [2022-12-14 13:52:08,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784249738] [2022-12-14 13:52:08,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:52:08,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-12-14 13:52:08,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:52:08,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-12-14 13:52:08,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=2617, Unknown=0, NotChecked=0, Total=2756 [2022-12-14 13:52:08,210 INFO L87 Difference]: Start difference. First operand 231 states and 324 transitions. Second operand has 48 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 13:52:15,809 WARN L233 SmtUtils]: Spent 5.57s on a formula simplification. DAG size of input: 513 DAG size of output: 406 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:52:34,486 WARN L233 SmtUtils]: Spent 6.62s on a formula simplification. DAG size of input: 517 DAG size of output: 424 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:53:03,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:53:03,400 INFO L93 Difference]: Finished difference Result 634 states and 967 transitions. [2022-12-14 13:53:03,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-12-14 13:53:03,401 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 71 [2022-12-14 13:53:03,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:53:03,409 INFO L225 Difference]: With dead ends: 634 [2022-12-14 13:53:03,409 INFO L226 Difference]: Without dead ends: 421 [2022-12-14 13:53:03,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 163 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 829 ImplicationChecksByTransitivity, 144.6s TimeCoverageRelationStatistics Valid=212, Invalid=3820, Unknown=0, NotChecked=0, Total=4032 [2022-12-14 13:53:03,412 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 262 mSDsluCounter, 6167 mSDsCounter, 0 mSdLazyCounter, 6712 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 6440 SdHoareTripleChecker+Invalid, 6744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 6712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2022-12-14 13:53:03,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 6440 Invalid, 6744 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [32 Valid, 6712 Invalid, 0 Unknown, 0 Unchecked, 19.7s Time] [2022-12-14 13:53:03,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-12-14 13:53:03,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 285. [2022-12-14 13:53:03,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 183 states have (on average 1.360655737704918) internal successors, (249), 186 states have internal predecessors, (249), 72 states have call successors, (72), 31 states have call predecessors, (72), 29 states have return successors, (71), 69 states have call predecessors, (71), 71 states have call successors, (71) [2022-12-14 13:53:03,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 392 transitions. [2022-12-14 13:53:03,549 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 392 transitions. Word has length 71 [2022-12-14 13:53:03,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:53:03,549 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 392 transitions. [2022-12-14 13:53:03,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 15 states have call successors, (15), 10 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 13:53:03,549 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 392 transitions. [2022-12-14 13:53:03,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 13:53:03,551 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:53:03,551 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:53:03,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:53:03,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:53:03,753 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:53:03,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:53:03,755 INFO L85 PathProgramCache]: Analyzing trace with hash 234340322, now seen corresponding path program 1 times [2022-12-14 13:53:03,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:53:03,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985762922] [2022-12-14 13:53:03,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:53:03,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:53:03,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:53:03,846 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 13:53:03,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:53:03,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985762922] [2022-12-14 13:53:03,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985762922] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:53:03,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:53:03,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:53:03,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302559377] [2022-12-14 13:53:03,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:53:03,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:53:03,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:53:03,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:53:03,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:53:03,849 INFO L87 Difference]: Start difference. First operand 285 states and 392 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 13:53:04,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:53:04,109 INFO L93 Difference]: Finished difference Result 630 states and 911 transitions. [2022-12-14 13:53:04,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:53:04,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 76 [2022-12-14 13:53:04,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:53:04,111 INFO L225 Difference]: With dead ends: 630 [2022-12-14 13:53:04,112 INFO L226 Difference]: Without dead ends: 400 [2022-12-14 13:53:04,112 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 13:53:04,113 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 55 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:53:04,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 456 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:53:04,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-12-14 13:53:04,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 395. [2022-12-14 13:53:04,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 268 states have (on average 1.4291044776119404) internal successors, (383), 271 states have internal predecessors, (383), 97 states have call successors, (97), 31 states have call predecessors, (97), 29 states have return successors, (96), 94 states have call predecessors, (96), 96 states have call successors, (96) [2022-12-14 13:53:04,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 576 transitions. [2022-12-14 13:53:04,295 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 576 transitions. Word has length 76 [2022-12-14 13:53:04,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:53:04,296 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 576 transitions. [2022-12-14 13:53:04,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 13:53:04,296 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 576 transitions. [2022-12-14 13:53:04,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-14 13:53:04,297 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:53:04,297 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:53:04,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 13:53:04,298 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:53:04,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:53:04,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1402813540, now seen corresponding path program 1 times [2022-12-14 13:53:04,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:53:04,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958968313] [2022-12-14 13:53:04,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:53:04,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:53:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:53:04,382 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 13:53:04,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:53:04,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958968313] [2022-12-14 13:53:04,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958968313] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:53:04,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39735510] [2022-12-14 13:53:04,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:53:04,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:53:04,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:53:04,383 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:53:04,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 13:53:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:53:04,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 1044 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:53:04,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:53:04,599 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 13:53:04,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:53:04,635 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 13:53:04,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39735510] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:53:04,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1897477103] [2022-12-14 13:53:04,639 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2022-12-14 13:53:04,639 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:53:04,639 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:53:04,639 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:53:04,639 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:53:45,624 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 13:53:45,913 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 13:53:46,194 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:54:25,428 WARN L233 SmtUtils]: Spent 6.27s on a formula simplification. DAG size of input: 583 DAG size of output: 344 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:54:30,908 WARN L233 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 562 DAG size of output: 388 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:54:56,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1897477103] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:54:56,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:54:56,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 13:54:56,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783968796] [2022-12-14 13:54:56,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:54:56,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 13:54:56,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:54:56,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 13:54:56,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-12-14 13:54:56,700 INFO L87 Difference]: Start difference. First operand 395 states and 576 transitions. Second operand has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-12-14 13:55:26,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:55:26,408 INFO L93 Difference]: Finished difference Result 825 states and 1259 transitions. [2022-12-14 13:55:26,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 13:55:26,409 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 77 [2022-12-14 13:55:26,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:55:26,411 INFO L225 Difference]: With dead ends: 825 [2022-12-14 13:55:26,411 INFO L226 Difference]: Without dead ends: 522 [2022-12-14 13:55:26,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 92.0s TimeCoverageRelationStatistics Valid=208, Invalid=1198, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 13:55:26,413 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 229 mSDsluCounter, 3482 mSDsCounter, 0 mSdLazyCounter, 2378 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 3718 SdHoareTripleChecker+Invalid, 2403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-12-14 13:55:26,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 3718 Invalid, 2403 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 2378 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2022-12-14 13:55:26,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2022-12-14 13:55:26,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 439. [2022-12-14 13:55:26,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 309 states have (on average 1.4563106796116505) internal successors, (450), 313 states have internal predecessors, (450), 99 states have call successors, (99), 32 states have call predecessors, (99), 30 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2022-12-14 13:55:26,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 647 transitions. [2022-12-14 13:55:26,683 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 647 transitions. Word has length 77 [2022-12-14 13:55:26,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:55:26,683 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 647 transitions. [2022-12-14 13:55:26,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-12-14 13:55:26,684 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 647 transitions. [2022-12-14 13:55:26,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-14 13:55:26,685 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:55:26,685 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:55:26,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 13:55:26,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:55:26,886 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:55:26,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:55:26,887 INFO L85 PathProgramCache]: Analyzing trace with hash -188403260, now seen corresponding path program 1 times [2022-12-14 13:55:26,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:55:26,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628060812] [2022-12-14 13:55:26,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:55:26,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:55:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:55:27,009 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:55:27,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:55:27,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628060812] [2022-12-14 13:55:27,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628060812] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:55:27,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328982496] [2022-12-14 13:55:27,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:55:27,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:55:27,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:55:27,011 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:55:27,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 13:55:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:55:27,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:55:27,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:55:27,237 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:55:27,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:55:27,275 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:55:27,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328982496] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:55:27,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [727174098] [2022-12-14 13:55:27,278 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2022-12-14 13:55:27,278 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:55:27,279 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:55:27,279 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:55:27,279 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:57:05,678 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 13:57:05,966 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 422 for LOIs [2022-12-14 13:57:06,251 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 419 for LOIs [2022-12-14 13:57:06,520 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 439 for LOIs [2022-12-14 13:57:37,206 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 213 for LOIs [2022-12-14 13:57:37,260 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 407 for LOIs [2022-12-14 13:57:37,481 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 13:57:38,015 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 437 for LOIs [2022-12-14 13:57:46,828 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 395 for LOIs [2022-12-14 13:57:47,041 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 230 for LOIs [2022-12-14 13:57:47,107 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 235 for LOIs [2022-12-14 13:57:47,145 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 407 for LOIs [2022-12-14 13:57:47,621 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:58:37,460 WARN L233 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 529 DAG size of output: 315 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:58:49,885 WARN L233 SmtUtils]: Spent 5.87s on a formula simplification. DAG size of input: 524 DAG size of output: 350 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:59:58,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [727174098] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:59:58,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:59:58,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [4, 4, 4] total 62 [2022-12-14 13:59:58,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124029315] [2022-12-14 13:59:58,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:59:58,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-12-14 13:59:58,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:59:58,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-12-14 13:59:58,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=3611, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 13:59:58,480 INFO L87 Difference]: Start difference. First operand 439 states and 647 transitions. Second operand has 57 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 33 states have internal predecessors, (40), 18 states have call successors, (18), 13 states have call predecessors, (18), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 14:00:58,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:00:58,670 INFO L93 Difference]: Finished difference Result 889 states and 1351 transitions. [2022-12-14 14:00:58,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-12-14 14:00:58,671 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 33 states have internal predecessors, (40), 18 states have call successors, (18), 13 states have call predecessors, (18), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Word has length 80 [2022-12-14 14:00:58,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:00:58,673 INFO L225 Difference]: With dead ends: 889 [2022-12-14 14:00:58,673 INFO L226 Difference]: Without dead ends: 586 [2022-12-14 14:00:58,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 181 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1152 ImplicationChecksByTransitivity, 163.8s TimeCoverageRelationStatistics Valid=285, Invalid=5415, Unknown=0, NotChecked=0, Total=5700 [2022-12-14 14:00:58,675 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 278 mSDsluCounter, 6437 mSDsCounter, 0 mSdLazyCounter, 8632 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 6688 SdHoareTripleChecker+Invalid, 8675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 8632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:00:58,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 6688 Invalid, 8675 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [43 Valid, 8632 Invalid, 0 Unknown, 0 Unchecked, 26.1s Time] [2022-12-14 14:00:58,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-12-14 14:00:59,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 527. [2022-12-14 14:00:59,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 377 states have (on average 1.4509283819628647) internal successors, (547), 383 states have internal predecessors, (547), 111 states have call successors, (111), 42 states have call predecessors, (111), 38 states have return successors, (110), 103 states have call predecessors, (110), 110 states have call successors, (110) [2022-12-14 14:00:59,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 768 transitions. [2022-12-14 14:00:59,051 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 768 transitions. Word has length 80 [2022-12-14 14:00:59,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:00:59,051 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 768 transitions. [2022-12-14 14:00:59,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 33 states have internal predecessors, (40), 18 states have call successors, (18), 13 states have call predecessors, (18), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 14:00:59,052 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 768 transitions. [2022-12-14 14:00:59,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 14:00:59,053 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:00:59,053 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:00:59,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 14:00:59,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:00:59,255 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:00:59,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:00:59,256 INFO L85 PathProgramCache]: Analyzing trace with hash -2126000181, now seen corresponding path program 1 times [2022-12-14 14:00:59,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:00:59,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334586379] [2022-12-14 14:00:59,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:00:59,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:00:59,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:00:59,383 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:00:59,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:00:59,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334586379] [2022-12-14 14:00:59,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334586379] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:00:59,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277054903] [2022-12-14 14:00:59,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:00:59,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:00:59,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:00:59,385 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:00:59,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd265bc9-56eb-4d27-a7d1-a5b574c432b3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 14:00:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:00:59,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 1185 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:00:59,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:00:59,598 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:00:59,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:00:59,649 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:00:59,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277054903] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:00:59,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [591295216] [2022-12-14 14:00:59,652 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2022-12-14 14:00:59,652 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:00:59,653 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:00:59,653 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:00:59,653 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:01:40,898 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 14:01:41,183 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 231 for LOIs [2022-12-14 14:01:41,239 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 230 for LOIs [2022-12-14 14:01:41,296 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 439 for LOIs [2022-12-14 14:02:09,753 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 213 for LOIs [2022-12-14 14:02:09,811 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 407 for LOIs [2022-12-14 14:02:10,035 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 14:02:10,323 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 437 for LOIs [2022-12-14 14:02:35,952 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailIsEncrypted with input of size 230 for LOIs [2022-12-14 14:02:35,991 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 395 for LOIs [2022-12-14 14:02:36,204 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 230 for LOIs [2022-12-14 14:02:36,270 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 235 for LOIs [2022-12-14 14:02:36,307 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 228 for LOIs [2022-12-14 14:02:36,410 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailEncryptionKey with input of size 234 for LOIs [2022-12-14 14:02:36,451 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:03:18,732 WARN L233 SmtUtils]: Spent 6.40s on a formula simplification. DAG size of input: 634 DAG size of output: 405 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)