./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/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_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/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_da01be8d-7a02-4d45-8860-7cb78cc0795f/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 23422b93e8eb894b39d133f7e6eb45372f0db0df72df3fa3f3890b8e90f2fd0e --- 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 08:08:40,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:08:40,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:08:40,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:08:40,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:08:40,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:08:40,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:08:40,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:08:40,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:08:40,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:08:40,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:08:40,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:08:40,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:08:40,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:08:40,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:08:40,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:08:40,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:08:40,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:08:40,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:08:40,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:08:40,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:08:40,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:08:40,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:08:40,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:08:40,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:08:40,620 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:08:40,620 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:08:40,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:08:40,621 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:08:40,622 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:08:40,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:08:40,623 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:08:40,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:08:40,624 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:08:40,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:08:40,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:08:40,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:08:40,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:08:40,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:08:40,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:08:40,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:08:40,627 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 08:08:40,640 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:08:40,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:08:40,640 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:08:40,641 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:08:40,641 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:08:40,641 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:08:40,641 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:08:40,641 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:08:40,642 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:08:40,642 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:08:40,642 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:08:40,642 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:08:40,642 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:08:40,642 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:08:40,642 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:08:40,642 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:08:40,643 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:08:40,643 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:08:40,643 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:08:40,644 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:08:40,644 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:08:40,644 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:08:40,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:08:40,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:08:40,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:08:40,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:08:40,644 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:08:40,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:08:40,645 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:08:40,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:08:40,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:08:40,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:08:40,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:08:40,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:08:40,645 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:08:40,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:08:40,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:08:40,646 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:08:40,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:08:40,646 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:08:40,646 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:08:40,646 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_da01be8d-7a02-4d45-8860-7cb78cc0795f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23422b93e8eb894b39d133f7e6eb45372f0db0df72df3fa3f3890b8e90f2fd0e [2022-12-14 08:08:40,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:08:40,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:08:40,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:08:40,841 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:08:40,841 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:08:40,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec1_product32.cil.c [2022-12-14 08:08:43,423 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:08:43,675 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:08:43,676 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/sv-benchmarks/c/product-lines/email_spec1_product32.cil.c [2022-12-14 08:08:43,690 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/data/72106dfea/3cc0e41bbc2c491b81f5b1c33e8a8423/FLAGce08637a4 [2022-12-14 08:08:43,700 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/data/72106dfea/3cc0e41bbc2c491b81f5b1c33e8a8423 [2022-12-14 08:08:43,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:08:43,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:08:43,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:08:43,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:08:43,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:08:43,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:08:43" (1/1) ... [2022-12-14 08:08:43,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34178342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:43, skipping insertion in model container [2022-12-14 08:08:43,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:08:43" (1/1) ... [2022-12-14 08:08:43,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:08:43,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:08:43,958 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:43,966 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:43,966 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:43,968 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:43,979 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:44,006 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:44,104 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:44,105 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:44,106 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:44,109 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_da01be8d-7a02-4d45-8860-7cb78cc0795f/sv-benchmarks/c/product-lines/email_spec1_product32.cil.c[65472,65485] [2022-12-14 08:08:44,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:08:44,122 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:08:44,136 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:44,137 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:44,138 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:44,139 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:44,143 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:44,152 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:44,186 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:44,187 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:44,189 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:44,191 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_da01be8d-7a02-4d45-8860-7cb78cc0795f/sv-benchmarks/c/product-lines/email_spec1_product32.cil.c[65472,65485] [2022-12-14 08:08:44,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:08:44,213 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:08:44,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:44 WrapperNode [2022-12-14 08:08:44,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:08:44,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:08:44,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:08:44,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:08:44,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:44" (1/1) ... [2022-12-14 08:08:44,258 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:44" (1/1) ... [2022-12-14 08:08:44,302 INFO L138 Inliner]: procedures = 134, calls = 237, calls flagged for inlining = 61, calls inlined = 53, statements flattened = 987 [2022-12-14 08:08:44,302 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:08:44,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:08:44,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:08:44,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:08:44,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:44" (1/1) ... [2022-12-14 08:08:44,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:44" (1/1) ... [2022-12-14 08:08:44,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:44" (1/1) ... [2022-12-14 08:08:44,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:44" (1/1) ... [2022-12-14 08:08:44,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:44" (1/1) ... [2022-12-14 08:08:44,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:44" (1/1) ... [2022-12-14 08:08:44,338 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:44" (1/1) ... [2022-12-14 08:08:44,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:44" (1/1) ... [2022-12-14 08:08:44,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:08:44,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:08:44,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:08:44,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:08:44,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:44" (1/1) ... [2022-12-14 08:08:44,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:08:44,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:08:44,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:08:44,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:08:44,408 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 08:08:44,408 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 08:08:44,408 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 08:08:44,408 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 08:08:44,408 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 08:08:44,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 08:08:44,409 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 08:08:44,409 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 08:08:44,409 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 08:08:44,409 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 08:08:44,409 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 08:08:44,409 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 08:08:44,409 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-14 08:08:44,409 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-14 08:08:44,410 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 08:08:44,410 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 08:08:44,410 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 08:08:44,410 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 08:08:44,410 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 08:08:44,410 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 08:08:44,410 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 08:08:44,411 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 08:08:44,411 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 08:08:44,411 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 08:08:44,411 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 08:08:44,411 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 08:08:44,411 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 08:08:44,411 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 08:08:44,411 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 08:08:44,411 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 08:08:44,412 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 08:08:44,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:08:44,412 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 08:08:44,412 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 08:08:44,412 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 08:08:44,412 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 08:08:44,412 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 08:08:44,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 08:08:44,413 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 08:08:44,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 08:08:44,413 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 08:08:44,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 08:08:44,413 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 08:08:44,413 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 08:08:44,413 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 08:08:44,413 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 08:08:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 08:08:44,414 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 08:08:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 08:08:44,414 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 08:08:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 08:08:44,414 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 08:08:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 08:08:44,414 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 08:08:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:08:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 08:08:44,414 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 08:08:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 08:08:44,415 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 08:08:44,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:08:44,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:08:44,577 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:08:44,579 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:08:45,249 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:08:45,594 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:08:45,594 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 08:08:45,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:08:45 BoogieIcfgContainer [2022-12-14 08:08:45,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:08:45,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:08:45,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:08:45,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:08:45,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:08:43" (1/3) ... [2022-12-14 08:08:45,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@535fdf56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:08:45, skipping insertion in model container [2022-12-14 08:08:45,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:44" (2/3) ... [2022-12-14 08:08:45,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@535fdf56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:08:45, skipping insertion in model container [2022-12-14 08:08:45,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:08:45" (3/3) ... [2022-12-14 08:08:45,603 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product32.cil.c [2022-12-14 08:08:45,619 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:08:45,619 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 08:08:45,662 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:08:45,668 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;@1073753, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:08:45,668 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 08:08:45,672 INFO L276 IsEmpty]: Start isEmpty. Operand has 219 states, 124 states have (on average 1.3064516129032258) internal successors, (162), 129 states have internal predecessors, (162), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-14 08:08:45,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 08:08:45,683 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:08:45,684 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:08:45,684 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:08:45,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:08:45,688 INFO L85 PathProgramCache]: Analyzing trace with hash -715648957, now seen corresponding path program 1 times [2022-12-14 08:08:45,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:08:45,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585893730] [2022-12-14 08:08:45,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:08:45,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:08:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:08:45,956 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 08:08:45,956 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:08:45,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585893730] [2022-12-14 08:08:45,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585893730] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:08:45,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:08:45,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:08:45,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503897872] [2022-12-14 08:08:45,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:08:45,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:08:45,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:08:45,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:08:45,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:08:45,992 INFO L87 Difference]: Start difference. First operand has 219 states, 124 states have (on average 1.3064516129032258) internal successors, (162), 129 states have internal predecessors, (162), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 08:08:46,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:08:46,118 INFO L93 Difference]: Finished difference Result 346 states and 455 transitions. [2022-12-14 08:08:46,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 08:08:46,121 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2022-12-14 08:08:46,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:08:46,131 INFO L225 Difference]: With dead ends: 346 [2022-12-14 08:08:46,131 INFO L226 Difference]: Without dead ends: 216 [2022-12-14 08:08:46,136 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 08:08:46,139 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:08:46,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 248 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:08:46,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-12-14 08:08:46,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2022-12-14 08:08:46,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 122 states have (on average 1.278688524590164) internal successors, (156), 126 states have internal predecessors, (156), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-14 08:08:46,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 285 transitions. [2022-12-14 08:08:46,189 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 285 transitions. Word has length 71 [2022-12-14 08:08:46,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:08:46,191 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 285 transitions. [2022-12-14 08:08:46,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 08:08:46,191 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 285 transitions. [2022-12-14 08:08:46,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 08:08:46,195 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:08:46,195 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:08:46,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:08:46,196 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:08:46,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:08:46,196 INFO L85 PathProgramCache]: Analyzing trace with hash -765246872, now seen corresponding path program 1 times [2022-12-14 08:08:46,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:08:46,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385625011] [2022-12-14 08:08:46,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:08:46,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:08:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:08:46,379 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 08:08:46,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:08:46,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385625011] [2022-12-14 08:08:46,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385625011] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:08:46,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:08:46,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:08:46,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774374053] [2022-12-14 08:08:46,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:08:46,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:08:46,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:08:46,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:08:46,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:08:46,383 INFO L87 Difference]: Start difference. First operand 216 states and 285 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 08:08:46,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:08:46,494 INFO L93 Difference]: Finished difference Result 342 states and 440 transitions. [2022-12-14 08:08:46,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:08:46,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2022-12-14 08:08:46,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:08:46,497 INFO L225 Difference]: With dead ends: 342 [2022-12-14 08:08:46,497 INFO L226 Difference]: Without dead ends: 218 [2022-12-14 08:08:46,499 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 08:08:46,500 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 0 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:08:46,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 489 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:08:46,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-12-14 08:08:46,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2022-12-14 08:08:46,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 124 states have (on average 1.2741935483870968) internal successors, (158), 128 states have internal predecessors, (158), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-14 08:08:46,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 287 transitions. [2022-12-14 08:08:46,521 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 287 transitions. Word has length 72 [2022-12-14 08:08:46,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:08:46,521 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 287 transitions. [2022-12-14 08:08:46,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 08:08:46,521 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 287 transitions. [2022-12-14 08:08:46,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-14 08:08:46,524 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:08:46,524 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] [2022-12-14 08:08:46,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:08:46,525 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:08:46,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:08:46,525 INFO L85 PathProgramCache]: Analyzing trace with hash -317888440, now seen corresponding path program 1 times [2022-12-14 08:08:46,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:08:46,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442753303] [2022-12-14 08:08:46,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:08:46,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:08:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:08:46,634 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 08:08:46,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:08:46,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442753303] [2022-12-14 08:08:46,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442753303] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:08:46,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:08:46,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:08:46,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678273507] [2022-12-14 08:08:46,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:08:46,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:08:46,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:08:46,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:08:46,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:08:46,637 INFO L87 Difference]: Start difference. First operand 218 states and 287 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 08:08:46,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:08:46,742 INFO L93 Difference]: Finished difference Result 471 states and 641 transitions. [2022-12-14 08:08:46,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:08:46,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2022-12-14 08:08:46,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:08:46,745 INFO L225 Difference]: With dead ends: 471 [2022-12-14 08:08:46,745 INFO L226 Difference]: Without dead ends: 271 [2022-12-14 08:08:46,746 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 08:08:46,747 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 59 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:08:46,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 503 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:08:46,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-12-14 08:08:46,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 266. [2022-12-14 08:08:46,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 158 states have (on average 1.3481012658227849) internal successors, (213), 162 states have internal predecessors, (213), 79 states have call successors, (79), 28 states have call predecessors, (79), 28 states have return successors, (78), 77 states have call predecessors, (78), 78 states have call successors, (78) [2022-12-14 08:08:46,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 370 transitions. [2022-12-14 08:08:46,772 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 370 transitions. Word has length 77 [2022-12-14 08:08:46,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:08:46,772 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 370 transitions. [2022-12-14 08:08:46,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 08:08:46,772 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 370 transitions. [2022-12-14 08:08:46,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 08:08:46,775 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:08:46,775 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] [2022-12-14 08:08:46,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 08:08:46,776 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:08:46,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:08:46,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1628857571, now seen corresponding path program 1 times [2022-12-14 08:08:46,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:08:46,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57202652] [2022-12-14 08:08:46,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:08:46,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:08:46,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:08:46,972 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 08:08:46,972 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:08:46,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57202652] [2022-12-14 08:08:46,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57202652] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:08:46,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386748709] [2022-12-14 08:08:46,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:08:46,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:08:46,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:08:46,975 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:08:46,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 08:08:47,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:08:47,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 1101 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:08:47,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:08:47,245 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 08:08:47,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:08:47,302 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 08:08:47,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386748709] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:08:47,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [359190958] [2022-12-14 08:08:47,323 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-12-14 08:08:47,323 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:08:47,327 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:08:47,332 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:08:47,333 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:09:23,399 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 08:09:23,701 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 482 for LOIs [2022-12-14 08:10:00,131 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 450 for LOIs [2022-12-14 08:10:00,426 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 08:10:00,730 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 480 for LOIs [2022-12-14 08:10:07,854 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 438 for LOIs [2022-12-14 08:10:08,132 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 282 for LOIs [2022-12-14 08:10:14,271 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 252 for LOIs [2022-12-14 08:10:14,345 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 249 for LOIs [2022-12-14 08:10:14,388 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 453 for LOIs [2022-12-14 08:10:15,002 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 257 for LOIs [2022-12-14 08:10:15,051 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:10:54,971 WARN L233 SmtUtils]: Spent 6.93s on a formula simplification. DAG size of input: 596 DAG size of output: 349 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:12:22,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [359190958] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:12:22,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:12:22,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [4, 4, 4] total 60 [2022-12-14 08:12:22,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218024904] [2022-12-14 08:12:22,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:12:22,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-12-14 08:12:22,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:12:22,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-12-14 08:12:22,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=3383, Unknown=0, NotChecked=0, Total=3540 [2022-12-14 08:12:22,740 INFO L87 Difference]: Start difference. First operand 266 states and 370 transitions. Second operand has 55 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 33 states have internal predecessors, (41), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 08:13:23,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:13:23,620 INFO L93 Difference]: Finished difference Result 713 states and 1080 transitions. [2022-12-14 08:13:23,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-12-14 08:13:23,621 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 33 states have internal predecessors, (41), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 78 [2022-12-14 08:13:23,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:13:23,624 INFO L225 Difference]: With dead ends: 713 [2022-12-14 08:13:23,625 INFO L226 Difference]: Without dead ends: 465 [2022-12-14 08:13:23,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1178 ImplicationChecksByTransitivity, 161.2s TimeCoverageRelationStatistics Valid=257, Invalid=5145, Unknown=0, NotChecked=0, Total=5402 [2022-12-14 08:13:23,628 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 334 mSDsluCounter, 6935 mSDsCounter, 0 mSdLazyCounter, 8824 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 7242 SdHoareTripleChecker+Invalid, 8858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 8824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.8s IncrementalHoareTripleChecker+Time [2022-12-14 08:13:23,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 7242 Invalid, 8858 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [34 Valid, 8824 Invalid, 0 Unknown, 0 Unchecked, 26.8s Time] [2022-12-14 08:13:23,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-12-14 08:13:23,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 363. [2022-12-14 08:13:23,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 238 states have (on average 1.403361344537815) internal successors, (334), 242 states have internal predecessors, (334), 89 states have call successors, (89), 38 states have call predecessors, (89), 35 states have return successors, (88), 84 states have call predecessors, (88), 88 states have call successors, (88) [2022-12-14 08:13:23,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 511 transitions. [2022-12-14 08:13:23,780 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 511 transitions. Word has length 78 [2022-12-14 08:13:23,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:13:23,781 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 511 transitions. [2022-12-14 08:13:23,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 33 states have internal predecessors, (41), 17 states have call successors, (17), 12 states have call predecessors, (17), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 08:13:23,781 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 511 transitions. [2022-12-14 08:13:23,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 08:13:23,784 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:13:23,785 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:13:23,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 08:13:23,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:13:23,987 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:13:23,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:13:23,989 INFO L85 PathProgramCache]: Analyzing trace with hash -312871141, now seen corresponding path program 1 times [2022-12-14 08:13:23,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:13:23,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827118018] [2022-12-14 08:13:23,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:13:23,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:13:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:13:24,115 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 08:13:24,116 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:13:24,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827118018] [2022-12-14 08:13:24,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827118018] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:13:24,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:13:24,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:13:24,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323230931] [2022-12-14 08:13:24,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:13:24,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:13:24,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:13:24,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:13:24,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:13:24,118 INFO L87 Difference]: Start difference. First operand 363 states and 511 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 08:13:24,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:13:24,440 INFO L93 Difference]: Finished difference Result 813 states and 1178 transitions. [2022-12-14 08:13:24,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:13:24,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 83 [2022-12-14 08:13:24,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:13:24,442 INFO L225 Difference]: With dead ends: 813 [2022-12-14 08:13:24,442 INFO L226 Difference]: Without dead ends: 488 [2022-12-14 08:13:24,443 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 08:13:24,444 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 57 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:13:24,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 521 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:13:24,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-12-14 08:13:24,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 481. [2022-12-14 08:13:24,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 325 states have (on average 1.44) internal successors, (468), 329 states have internal predecessors, (468), 120 states have call successors, (120), 38 states have call predecessors, (120), 35 states have return successors, (119), 115 states have call predecessors, (119), 119 states have call successors, (119) [2022-12-14 08:13:24,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 707 transitions. [2022-12-14 08:13:24,675 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 707 transitions. Word has length 83 [2022-12-14 08:13:24,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:13:24,675 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 707 transitions. [2022-12-14 08:13:24,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 08:13:24,676 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 707 transitions. [2022-12-14 08:13:24,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 08:13:24,678 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:13:24,678 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:13:24,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 08:13:24,679 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:13:24,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:13:24,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1928035847, now seen corresponding path program 1 times [2022-12-14 08:13:24,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:13:24,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533498337] [2022-12-14 08:13:24,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:13:24,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:13:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:13:24,818 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 08:13:24,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:13:24,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533498337] [2022-12-14 08:13:24,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533498337] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:13:24,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976501819] [2022-12-14 08:13:24,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:13:24,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:13:24,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:13:24,820 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:13:24,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 08:13:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:13:25,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 1122 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:13:25,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:13:25,036 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 08:13:25,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:13:25,093 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 08:13:25,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976501819] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:13:25,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1407997381] [2022-12-14 08:13:25,097 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 08:13:25,098 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:13:25,098 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:13:25,098 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:13:25,098 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:14:00,884 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 08:14:01,188 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-12-14 08:14:01,534 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:14:40,367 WARN L233 SmtUtils]: Spent 5.84s on a formula simplification. DAG size of input: 588 DAG size of output: 338 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:14:50,467 WARN L233 SmtUtils]: Spent 5.90s on a formula simplification. DAG size of input: 570 DAG size of output: 417 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:15:08,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1407997381] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:15:08,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:15:08,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2022-12-14 08:15:08,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905430006] [2022-12-14 08:15:08,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:15:08,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-14 08:15:08,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:15:08,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-14 08:15:08,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=809, Unknown=0, NotChecked=0, Total=930 [2022-12-14 08:15:08,747 INFO L87 Difference]: Start difference. First operand 481 states and 707 transitions. Second operand has 26 states, 20 states have (on average 2.2) internal successors, (44), 19 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2022-12-14 08:15:42,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:15:42,613 INFO L93 Difference]: Finished difference Result 927 states and 1403 transitions. [2022-12-14 08:15:42,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 08:15:42,614 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 20 states have (on average 2.2) internal successors, (44), 19 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 84 [2022-12-14 08:15:42,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:15:42,616 INFO L225 Difference]: With dead ends: 927 [2022-12-14 08:15:42,616 INFO L226 Difference]: Without dead ends: 579 [2022-12-14 08:15:42,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 92.1s TimeCoverageRelationStatistics Valid=207, Invalid=1275, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 08:15:42,617 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 234 mSDsluCounter, 3934 mSDsCounter, 0 mSdLazyCounter, 2624 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 4198 SdHoareTripleChecker+Invalid, 2637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-12-14 08:15:42,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 4198 Invalid, 2637 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 2624 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2022-12-14 08:15:42,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2022-12-14 08:15:42,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 509. [2022-12-14 08:15:42,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 350 states have (on average 1.44) internal successors, (504), 355 states have internal predecessors, (504), 122 states have call successors, (122), 39 states have call predecessors, (122), 36 states have return successors, (121), 116 states have call predecessors, (121), 121 states have call successors, (121) [2022-12-14 08:15:42,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 747 transitions. [2022-12-14 08:15:42,853 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 747 transitions. Word has length 84 [2022-12-14 08:15:42,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:15:42,853 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 747 transitions. [2022-12-14 08:15:42,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 20 states have (on average 2.2) internal successors, (44), 19 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2022-12-14 08:15:42,853 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 747 transitions. [2022-12-14 08:15:42,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 08:15:42,854 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:15:42,855 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:15:42,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 08:15:43,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:15:43,055 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:15:43,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:15:43,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1779445046, now seen corresponding path program 1 times [2022-12-14 08:15:43,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:15:43,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107776352] [2022-12-14 08:15:43,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:15:43,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:15:43,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:15:43,156 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 08:15:43,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:15:43,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107776352] [2022-12-14 08:15:43,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107776352] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:15:43,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757810284] [2022-12-14 08:15:43,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:15:43,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:15:43,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:15:43,158 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:15:43,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 08:15:43,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:15:43,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:15:43,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:15:43,371 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 08:15:43,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:15:43,411 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 08:15:43,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757810284] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:15:43,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [889919175] [2022-12-14 08:15:43,413 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2022-12-14 08:15:43,413 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:15:43,414 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:15:43,414 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:15:43,414 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:17:46,896 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 08:17:47,191 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 438 for LOIs [2022-12-14 08:17:47,508 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 457 for LOIs [2022-12-14 08:17:47,850 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 237 for LOIs [2022-12-14 08:17:47,917 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 08:17:48,219 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:18:20,801 WARN L233 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 512 DAG size of output: 357 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:18:38,623 WARN L233 SmtUtils]: Spent 6.00s on a formula simplification. DAG size of input: 569 DAG size of output: 438 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:18:44,200 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 565 DAG size of output: 434 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:19:00,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [889919175] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:19:00,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:19:00,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 08:19:00,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481384966] [2022-12-14 08:19:00,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:19:00,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 08:19:00,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:19:00,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 08:19:00,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1070, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 08:19:00,341 INFO L87 Difference]: Start difference. First operand 509 states and 747 transitions. Second operand has 30 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2022-12-14 08:19:23,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:19:23,084 INFO L93 Difference]: Finished difference Result 963 states and 1454 transitions. [2022-12-14 08:19:23,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 08:19:23,085 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) Word has length 87 [2022-12-14 08:19:23,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:19:23,088 INFO L225 Difference]: With dead ends: 963 [2022-12-14 08:19:23,088 INFO L226 Difference]: Without dead ends: 615 [2022-12-14 08:19:23,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 82.3s TimeCoverageRelationStatistics Valid=156, Invalid=1326, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 08:19:23,090 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 201 mSDsluCounter, 3885 mSDsCounter, 0 mSdLazyCounter, 3946 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 4151 SdHoareTripleChecker+Invalid, 3957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-12-14 08:19:23,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 4151 Invalid, 3957 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 3946 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2022-12-14 08:19:23,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2022-12-14 08:19:23,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 548. [2022-12-14 08:19:23,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 382 states have (on average 1.4371727748691099) internal successors, (549), 388 states have internal predecessors, (549), 126 states have call successors, (126), 42 states have call predecessors, (126), 39 states have return successors, (125), 119 states have call predecessors, (125), 125 states have call successors, (125) [2022-12-14 08:19:23,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 800 transitions. [2022-12-14 08:19:23,398 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 800 transitions. Word has length 87 [2022-12-14 08:19:23,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:19:23,398 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 800 transitions. [2022-12-14 08:19:23,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2022-12-14 08:19:23,399 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 800 transitions. [2022-12-14 08:19:23,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-14 08:19:23,401 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:19:23,401 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:19:23,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 08:19:23,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:19:23,602 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:19:23,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:19:23,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1961358912, now seen corresponding path program 1 times [2022-12-14 08:19:23,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:19:23,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834567212] [2022-12-14 08:19:23,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:19:23,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:19:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:19:23,736 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 08:19:23,736 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:19:23,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834567212] [2022-12-14 08:19:23,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834567212] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:19:23,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403030310] [2022-12-14 08:19:23,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:19:23,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:19:23,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:19:23,738 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:19:23,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da01be8d-7a02-4d45-8860-7cb78cc0795f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 08:19:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:19:23,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 1145 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 08:19:23,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:19:23,996 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 08:19:23,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:19:24,037 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 08:19:24,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403030310] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:19:24,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [39758132] [2022-12-14 08:19:24,040 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 08:19:24,041 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:19:24,041 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:19:24,041 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:19:24,041 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:20:16,774 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 08:20:17,071 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 268 for LOIs [2022-12-14 08:20:18,897 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 236 for LOIs [2022-12-14 08:20:18,935 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 08:20:19,233 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 268 for LOIs [2022-12-14 08:20:22,054 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 226 for LOIs [2022-12-14 08:20:22,090 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 278 for LOIs [2022-12-14 08:20:28,187 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 248 for LOIs [2022-12-14 08:20:28,257 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 245 for LOIs [2022-12-14 08:20:28,299 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 472 for LOIs [2022-12-14 08:20:32,991 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 253 for LOIs [2022-12-14 08:20:33,039 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:22:20,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [39758132] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:22:20,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:22:20,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [58] imperfect sequences [5, 5, 5] total 64 [2022-12-14 08:22:20,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869417936] [2022-12-14 08:22:20,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:22:20,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-12-14 08:22:20,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:22:20,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-12-14 08:22:20,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=3840, Unknown=0, NotChecked=0, Total=4032 [2022-12-14 08:22:20,941 INFO L87 Difference]: Start difference. First operand 548 states and 800 transitions. Second operand has 59 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 36 states have internal predecessors, (45), 18 states have call successors, (18), 12 states have call predecessors, (18), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)