./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product35.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_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/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_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/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_b80c3046-f9b9-46cd-b839-378953aeb96a/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 4b1644ee409dd7fb9188781699149bb283de125dad063a54175775584b617862 --- 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 08:08:27,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:08:27,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:08:27,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:08:27,633 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:08:27,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:08:27,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:08:27,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:08:27,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:08:27,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:08:27,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:08:27,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:08:27,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:08:27,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:08:27,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:08:27,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:08:27,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:08:27,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:08:27,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:08:27,645 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:08:27,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:08:27,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:08:27,647 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:08:27,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:08:27,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:08:27,650 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:08:27,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:08:27,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:08:27,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:08:27,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:08:27,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:08:27,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:08:27,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:08:27,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:08:27,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:08:27,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:08:27,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:08:27,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:08:27,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:08:27,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:08:27,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:08:27,657 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 08:08:27,670 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:08:27,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:08:27,671 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:08:27,671 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:08:27,671 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:08:27,671 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:08:27,671 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:08:27,672 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:08:27,672 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:08:27,672 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:08:27,672 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:08:27,672 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:08:27,672 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:08:27,672 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:08:27,673 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:08:27,673 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:08:27,673 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:08:27,673 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:08:27,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:08:27,674 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:08:27,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:08:27,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:08:27,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:08:27,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:08:27,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:08:27,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:08:27,675 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:08:27,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:08:27,675 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:08:27,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:08:27,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:08:27,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:08:27,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:08:27,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:08:27,676 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:08:27,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:08:27,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:08:27,676 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:08:27,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:08:27,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:08:27,677 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:08:27,677 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_b80c3046-f9b9-46cd-b839-378953aeb96a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b1644ee409dd7fb9188781699149bb283de125dad063a54175775584b617862 [2022-12-14 08:08:27,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:08:27,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:08:27,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:08:27,856 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:08:27,857 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:08:27,858 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec6_product35.cil.c [2022-12-14 08:08:30,405 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:08:30,620 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:08:30,621 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/sv-benchmarks/c/product-lines/email_spec6_product35.cil.c [2022-12-14 08:08:30,632 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/data/fa0b2b2b8/d4cc1eb55c0f4e6eab878c791087c9e8/FLAG011df1d81 [2022-12-14 08:08:30,642 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/data/fa0b2b2b8/d4cc1eb55c0f4e6eab878c791087c9e8 [2022-12-14 08:08:30,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:08:30,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:08:30,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:08:30,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:08:30,649 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:08:30,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:08:30" (1/1) ... [2022-12-14 08:08:30,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31f38e53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:30, skipping insertion in model container [2022-12-14 08:08:30,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:08:30" (1/1) ... [2022-12-14 08:08:30,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:08:30,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:08:30,867 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:30,878 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:30,879 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:30,881 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:30,897 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:30,899 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:30,937 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:30,938 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:30,941 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:30,948 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:30,949 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:30,970 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_b80c3046-f9b9-46cd-b839-378953aeb96a/sv-benchmarks/c/product-lines/email_spec6_product35.cil.c[24735,24748] [2022-12-14 08:08:31,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:08:31,071 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:08:31,085 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:31,088 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:31,089 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:31,090 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:31,097 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:31,099 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:31,103 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:31,104 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:31,107 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:31,111 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:31,112 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:08:31,123 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_b80c3046-f9b9-46cd-b839-378953aeb96a/sv-benchmarks/c/product-lines/email_spec6_product35.cil.c[24735,24748] [2022-12-14 08:08:31,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:08:31,205 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:08:31,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:31 WrapperNode [2022-12-14 08:08:31,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:08:31,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:08:31,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:08:31,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:08:31,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:31" (1/1) ... [2022-12-14 08:08:31,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:31" (1/1) ... [2022-12-14 08:08:31,291 INFO L138 Inliner]: procedures = 138, calls = 254, calls flagged for inlining = 67, calls inlined = 64, statements flattened = 1175 [2022-12-14 08:08:31,292 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:08:31,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:08:31,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:08:31,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:08:31,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:31" (1/1) ... [2022-12-14 08:08:31,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:31" (1/1) ... [2022-12-14 08:08:31,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:31" (1/1) ... [2022-12-14 08:08:31,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:31" (1/1) ... [2022-12-14 08:08:31,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:31" (1/1) ... [2022-12-14 08:08:31,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:31" (1/1) ... [2022-12-14 08:08:31,343 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:31" (1/1) ... [2022-12-14 08:08:31,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:31" (1/1) ... [2022-12-14 08:08:31,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:08:31,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:08:31,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:08:31,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:08:31,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:31" (1/1) ... [2022-12-14 08:08:31,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:08:31,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:08:31,389 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:08:31,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:08:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 08:08:31,423 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 08:08:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 08:08:31,423 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 08:08:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 08:08:31,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 08:08:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 08:08:31,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 08:08:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 08:08:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 08:08:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 08:08:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 08:08:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-14 08:08:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-14 08:08:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 08:08:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 08:08:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 08:08:31,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 08:08:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 08:08:31,425 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 08:08:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 08:08:31,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 08:08:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 08:08:31,425 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 08:08:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 08:08:31,425 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 08:08:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 08:08:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 08:08:31,426 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 08:08:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-14 08:08:31,426 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-14 08:08:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 08:08:31,426 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 08:08:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:08:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 08:08:31,426 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 08:08:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 08:08:31,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 08:08:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 08:08:31,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 08:08:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 08:08:31,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 08:08:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 08:08:31,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 08:08:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 08:08:31,428 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 08:08:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 08:08:31,428 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 08:08:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 08:08:31,428 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 08:08:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 08:08:31,428 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 08:08:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 08:08:31,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 08:08:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 08:08:31,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 08:08:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:08:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 08:08:31,429 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 08:08:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 08:08:31,429 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 08:08:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:08:31,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:08:31,623 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:08:31,625 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:08:32,245 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:08:32,601 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:08:32,601 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 08:08:32,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:08:32 BoogieIcfgContainer [2022-12-14 08:08:32,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:08:32,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:08:32,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:08:32,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:08:32,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:08:30" (1/3) ... [2022-12-14 08:08:32,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e3c995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:08:32, skipping insertion in model container [2022-12-14 08:08:32,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:31" (2/3) ... [2022-12-14 08:08:32,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e3c995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:08:32, skipping insertion in model container [2022-12-14 08:08:32,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:08:32" (3/3) ... [2022-12-14 08:08:32,610 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product35.cil.c [2022-12-14 08:08:32,625 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:08:32,626 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 08:08:32,664 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:08:32,669 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;@29cfe550, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:08:32,669 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 08:08:32,673 INFO L276 IsEmpty]: Start isEmpty. Operand has 246 states, 138 states have (on average 1.2826086956521738) internal successors, (177), 143 states have internal predecessors, (177), 77 states have call successors, (77), 29 states have call predecessors, (77), 29 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2022-12-14 08:08:32,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 08:08:32,683 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:08:32,683 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:08:32,684 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:08:32,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:08:32,687 INFO L85 PathProgramCache]: Analyzing trace with hash 249683234, now seen corresponding path program 1 times [2022-12-14 08:08:32,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:08:32,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164700389] [2022-12-14 08:08:32,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:08:32,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:08:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:08:32,987 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 08:08:32,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:08:32,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164700389] [2022-12-14 08:08:32,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164700389] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:08:32,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:08:32,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:08:32,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629975900] [2022-12-14 08:08:32,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:08:32,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:08:32,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:08:33,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:08:33,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:08:33,028 INFO L87 Difference]: Start difference. First operand has 246 states, 138 states have (on average 1.2826086956521738) internal successors, (177), 143 states have internal predecessors, (177), 77 states have call successors, (77), 29 states have call predecessors, (77), 29 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 08:08:33,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:08:33,179 INFO L93 Difference]: Finished difference Result 400 states and 533 transitions. [2022-12-14 08:08:33,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 08:08:33,181 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 87 [2022-12-14 08:08:33,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:08:33,192 INFO L225 Difference]: With dead ends: 400 [2022-12-14 08:08:33,193 INFO L226 Difference]: Without dead ends: 243 [2022-12-14 08:08:33,198 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 08:08:33,201 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:08:33,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 280 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:08:33,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-12-14 08:08:33,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2022-12-14 08:08:33,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 136 states have (on average 1.2573529411764706) internal successors, (171), 140 states have internal predecessors, (171), 77 states have call successors, (77), 29 states have call predecessors, (77), 29 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2022-12-14 08:08:33,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 324 transitions. [2022-12-14 08:08:33,255 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 324 transitions. Word has length 87 [2022-12-14 08:08:33,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:08:33,257 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 324 transitions. [2022-12-14 08:08:33,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 08:08:33,258 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 324 transitions. [2022-12-14 08:08:33,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-14 08:08:33,262 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:08:33,262 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:08:33,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:08:33,263 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:08:33,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:08:33,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1736461600, now seen corresponding path program 1 times [2022-12-14 08:08:33,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:08:33,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640763801] [2022-12-14 08:08:33,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:08:33,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:08:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:08:33,455 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 08:08:33,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:08:33,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640763801] [2022-12-14 08:08:33,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640763801] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:08:33,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:08:33,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:08:33,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938062447] [2022-12-14 08:08:33,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:08:33,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:08:33,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:08:33,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:08:33,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:08:33,459 INFO L87 Difference]: Start difference. First operand 243 states and 324 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 08:08:33,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:08:33,602 INFO L93 Difference]: Finished difference Result 396 states and 518 transitions. [2022-12-14 08:08:33,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:08:33,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 88 [2022-12-14 08:08:33,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:08:33,605 INFO L225 Difference]: With dead ends: 396 [2022-12-14 08:08:33,605 INFO L226 Difference]: Without dead ends: 245 [2022-12-14 08:08:33,606 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 08:08:33,607 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 0 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:08:33,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 553 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:08:33,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2022-12-14 08:08:33,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2022-12-14 08:08:33,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 138 states have (on average 1.2536231884057971) internal successors, (173), 142 states have internal predecessors, (173), 77 states have call successors, (77), 29 states have call predecessors, (77), 29 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2022-12-14 08:08:33,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 326 transitions. [2022-12-14 08:08:33,628 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 326 transitions. Word has length 88 [2022-12-14 08:08:33,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:08:33,629 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 326 transitions. [2022-12-14 08:08:33,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 08:08:33,629 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 326 transitions. [2022-12-14 08:08:33,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-14 08:08:33,631 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:08:33,631 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:08:33,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:08:33,632 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:08:33,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:08:33,632 INFO L85 PathProgramCache]: Analyzing trace with hash -446639060, now seen corresponding path program 1 times [2022-12-14 08:08:33,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:08:33,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904327286] [2022-12-14 08:08:33,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:08:33,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:08:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:08:33,776 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:08:33,776 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:08:33,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904327286] [2022-12-14 08:08:33,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904327286] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:08:33,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:08:33,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:08:33,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63189310] [2022-12-14 08:08:33,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:08:33,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:08:33,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:08:33,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:08:33,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:08:33,779 INFO L87 Difference]: Start difference. First operand 245 states and 326 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 08:08:33,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:08:33,900 INFO L93 Difference]: Finished difference Result 525 states and 719 transitions. [2022-12-14 08:08:33,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:08:33,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 104 [2022-12-14 08:08:33,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:08:33,903 INFO L225 Difference]: With dead ends: 525 [2022-12-14 08:08:33,903 INFO L226 Difference]: Without dead ends: 298 [2022-12-14 08:08:33,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:08:33,906 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 59 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:08:33,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 571 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:08:33,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-12-14 08:08:33,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 293. [2022-12-14 08:08:33,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 172 states have (on average 1.3255813953488371) internal successors, (228), 176 states have internal predecessors, (228), 91 states have call successors, (91), 29 states have call predecessors, (91), 29 states have return successors, (90), 89 states have call predecessors, (90), 90 states have call successors, (90) [2022-12-14 08:08:33,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 409 transitions. [2022-12-14 08:08:33,932 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 409 transitions. Word has length 104 [2022-12-14 08:08:33,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:08:33,932 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 409 transitions. [2022-12-14 08:08:33,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 08:08:33,933 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 409 transitions. [2022-12-14 08:08:33,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-12-14 08:08:33,935 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:08:33,935 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:08:33,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 08:08:33,936 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:08:33,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:08:33,936 INFO L85 PathProgramCache]: Analyzing trace with hash -212138034, now seen corresponding path program 1 times [2022-12-14 08:08:33,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:08:33,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233848509] [2022-12-14 08:08:33,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:08:33,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:08:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:08:34,124 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:08:34,125 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:08:34,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233848509] [2022-12-14 08:08:34,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233848509] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:08:34,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584119981] [2022-12-14 08:08:34,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:08:34,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:08:34,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:08:34,127 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:08:34,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 08:08:34,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:08:34,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 1268 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:08:34,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:08:34,456 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:08:34,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:08:34,530 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:08:34,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584119981] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:08:34,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [351783594] [2022-12-14 08:08:34,548 INFO L159 IcfgInterpreter]: Started Sifa with 86 locations of interest [2022-12-14 08:08:34,548 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:08:34,552 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:08:34,557 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:08:34,557 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:09:08,606 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 08:09:08,912 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 273 for LOIs [2022-12-14 08:09:10,929 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 08:09:11,245 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 275 for LOIs [2022-12-14 08:09:14,236 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 241 for LOIs [2022-12-14 08:09:14,279 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 233 for LOIs [2022-12-14 08:09:14,320 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 241 for LOIs [2022-12-14 08:09:14,361 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 258 for LOIs [2022-12-14 08:09:14,413 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:09:48,476 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 591 DAG size of output: 348 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:10:19,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [351783594] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:10:19,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:10:19,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [4, 4, 4] total 46 [2022-12-14 08:10:19,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626152213] [2022-12-14 08:10:19,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:10:19,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-12-14 08:10:19,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:10:19,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-12-14 08:10:19,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1958, Unknown=0, NotChecked=0, Total=2070 [2022-12-14 08:10:19,172 INFO L87 Difference]: Start difference. First operand 293 states and 409 transitions. Second operand has 41 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 25 states have internal predecessors, (50), 13 states have call successors, (24), 9 states have call predecessors, (24), 7 states have return successors, (21), 11 states have call predecessors, (21), 11 states have call successors, (21) [2022-12-14 08:11:06,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:11:06,706 INFO L93 Difference]: Finished difference Result 716 states and 1069 transitions. [2022-12-14 08:11:06,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-14 08:11:06,707 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 25 states have internal predecessors, (50), 13 states have call successors, (24), 9 states have call predecessors, (24), 7 states have return successors, (21), 11 states have call predecessors, (21), 11 states have call successors, (21) Word has length 105 [2022-12-14 08:11:06,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:11:06,709 INFO L225 Difference]: With dead ends: 716 [2022-12-14 08:11:06,709 INFO L226 Difference]: Without dead ends: 441 [2022-12-14 08:11:06,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 90.1s TimeCoverageRelationStatistics Valid=199, Invalid=3107, Unknown=0, NotChecked=0, Total=3306 [2022-12-14 08:11:06,711 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 286 mSDsluCounter, 6581 mSDsCounter, 0 mSdLazyCounter, 7375 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 6902 SdHoareTripleChecker+Invalid, 7407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 7375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2022-12-14 08:11:06,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 6902 Invalid, 7407 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [32 Valid, 7375 Invalid, 0 Unknown, 0 Unchecked, 21.7s Time] [2022-12-14 08:11:06,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-12-14 08:11:06,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 340. [2022-12-14 08:11:06,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 208 states have (on average 1.3317307692307692) internal successors, (277), 212 states have internal predecessors, (277), 97 states have call successors, (97), 36 states have call predecessors, (97), 34 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-12-14 08:11:06,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 470 transitions. [2022-12-14 08:11:06,826 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 470 transitions. Word has length 105 [2022-12-14 08:11:06,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:11:06,827 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 470 transitions. [2022-12-14 08:11:06,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 25 states have internal predecessors, (50), 13 states have call successors, (24), 9 states have call predecessors, (24), 7 states have return successors, (21), 11 states have call predecessors, (21), 11 states have call successors, (21) [2022-12-14 08:11:06,827 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 470 transitions. [2022-12-14 08:11:06,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-14 08:11:06,828 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:11:06,829 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:11:06,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 08:11:07,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:11:07,029 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:11:07,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:11:07,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1674578560, now seen corresponding path program 1 times [2022-12-14 08:11:07,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:11:07,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503075978] [2022-12-14 08:11:07,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:07,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:11:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:07,125 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 08:11:07,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:11:07,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503075978] [2022-12-14 08:11:07,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503075978] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:11:07,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714104249] [2022-12-14 08:11:07,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:07,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:11:07,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:11:07,127 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:11:07,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 08:11:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:07,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 1205 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:11:07,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:11:07,390 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 08:11:07,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:11:07,430 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 08:11:07,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714104249] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:11:07,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1327295628] [2022-12-14 08:11:07,434 INFO L159 IcfgInterpreter]: Started Sifa with 79 locations of interest [2022-12-14 08:11:07,435 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:11:07,435 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:11:07,435 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:11:07,435 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:11:38,555 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 08:11:38,882 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 273 for LOIs [2022-12-14 08:11:40,849 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 241 for LOIs [2022-12-14 08:11:40,917 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 08:11:41,232 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 273 for LOIs [2022-12-14 08:11:44,255 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 283 for LOIs [2022-12-14 08:11:55,392 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 231 for LOIs [2022-12-14 08:11:55,431 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 253 for LOIs [2022-12-14 08:11:55,508 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 427 for LOIs [2022-12-14 08:11:55,758 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 477 for LOIs [2022-12-14 08:11:57,788 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 255 for LOIs [2022-12-14 08:11:57,835 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 258 for LOIs [2022-12-14 08:11:57,887 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:12:37,445 WARN L233 SmtUtils]: Spent 6.64s on a formula simplification. DAG size of input: 574 DAG size of output: 439 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:13:54,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1327295628] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:13:54,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:13:54,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [59] imperfect sequences [4, 4, 4] total 65 [2022-12-14 08:13:54,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022130798] [2022-12-14 08:13:54,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:13:54,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-12-14 08:13:54,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:13:54,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-12-14 08:13:54,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=3995, Unknown=0, NotChecked=0, Total=4160 [2022-12-14 08:13:54,159 INFO L87 Difference]: Start difference. First operand 340 states and 470 transitions. Second operand has 60 states, 38 states have (on average 1.236842105263158) internal successors, (47), 35 states have internal predecessors, (47), 19 states have call successors, (21), 13 states have call predecessors, (21), 10 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2022-12-14 08:15:20,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:15:20,693 INFO L93 Difference]: Finished difference Result 646 states and 913 transitions. [2022-12-14 08:15:20,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-12-14 08:15:20,694 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 38 states have (on average 1.236842105263158) internal successors, (47), 35 states have internal predecessors, (47), 19 states have call successors, (21), 13 states have call predecessors, (21), 10 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) Word has length 94 [2022-12-14 08:15:20,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:15:20,696 INFO L225 Difference]: With dead ends: 646 [2022-12-14 08:15:20,696 INFO L226 Difference]: Without dead ends: 502 [2022-12-14 08:15:20,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 219 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1382 ImplicationChecksByTransitivity, 164.2s TimeCoverageRelationStatistics Valid=283, Invalid=6197, Unknown=0, NotChecked=0, Total=6480 [2022-12-14 08:15:20,698 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 328 mSDsluCounter, 8908 mSDsCounter, 0 mSdLazyCounter, 12231 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 9234 SdHoareTripleChecker+Invalid, 12243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 12231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.6s IncrementalHoareTripleChecker+Time [2022-12-14 08:15:20,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 9234 Invalid, 12243 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [12 Valid, 12231 Invalid, 0 Unknown, 0 Unchecked, 37.6s Time] [2022-12-14 08:15:20,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2022-12-14 08:15:21,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 393. [2022-12-14 08:15:21,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 242 states have (on average 1.3181818181818181) internal successors, (319), 247 states have internal predecessors, (319), 111 states have call successors, (111), 41 states have call predecessors, (111), 39 states have return successors, (111), 106 states have call predecessors, (111), 110 states have call successors, (111) [2022-12-14 08:15:21,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 541 transitions. [2022-12-14 08:15:21,010 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 541 transitions. Word has length 94 [2022-12-14 08:15:21,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:15:21,010 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 541 transitions. [2022-12-14 08:15:21,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 38 states have (on average 1.236842105263158) internal successors, (47), 35 states have internal predecessors, (47), 19 states have call successors, (21), 13 states have call predecessors, (21), 10 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2022-12-14 08:15:21,011 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 541 transitions. [2022-12-14 08:15:21,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-12-14 08:15:21,012 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:15:21,012 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:15:21,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 08:15:21,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:15:21,214 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:15:21,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:15:21,215 INFO L85 PathProgramCache]: Analyzing trace with hash 2135345049, now seen corresponding path program 1 times [2022-12-14 08:15:21,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:15:21,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816558712] [2022-12-14 08:15:21,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:15:21,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:15:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:15:21,294 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:15:21,294 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:15:21,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816558712] [2022-12-14 08:15:21,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816558712] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:15:21,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:15:21,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:15:21,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701938313] [2022-12-14 08:15:21,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:15:21,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:15:21,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:15:21,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:15:21,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:15:21,296 INFO L87 Difference]: Start difference. First operand 393 states and 541 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 08:15:21,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:15:21,732 INFO L93 Difference]: Finished difference Result 888 states and 1262 transitions. [2022-12-14 08:15:21,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:15:21,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 99 [2022-12-14 08:15:21,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:15:21,734 INFO L225 Difference]: With dead ends: 888 [2022-12-14 08:15:21,734 INFO L226 Difference]: Without dead ends: 521 [2022-12-14 08:15:21,735 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 08:15:21,736 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 57 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:15:21,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 579 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:15:21,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-12-14 08:15:22,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 514. [2022-12-14 08:15:22,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 332 states have (on average 1.3825301204819278) internal successors, (459), 337 states have internal predecessors, (459), 142 states have call successors, (142), 41 states have call predecessors, (142), 39 states have return successors, (142), 137 states have call predecessors, (142), 141 states have call successors, (142) [2022-12-14 08:15:22,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 743 transitions. [2022-12-14 08:15:22,035 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 743 transitions. Word has length 99 [2022-12-14 08:15:22,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:15:22,035 INFO L495 AbstractCegarLoop]: Abstraction has 514 states and 743 transitions. [2022-12-14 08:15:22,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 08:15:22,036 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 743 transitions. [2022-12-14 08:15:22,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 08:15:22,037 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:15:22,037 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, 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 08:15:22,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 08:15:22,037 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:15:22,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:15:22,038 INFO L85 PathProgramCache]: Analyzing trace with hash -847190572, now seen corresponding path program 1 times [2022-12-14 08:15:22,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:15:22,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638689597] [2022-12-14 08:15:22,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:15:22,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:15:22,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:15:22,157 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 08:15:22,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:15:22,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638689597] [2022-12-14 08:15:22,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638689597] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:15:22,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994372541] [2022-12-14 08:15:22,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:15:22,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:15:22,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:15:22,159 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:15:22,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 08:15:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:15:22,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 1289 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:15:22,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:15:22,386 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 08:15:22,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:15:22,430 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 08:15:22,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994372541] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:15:22,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1328806685] [2022-12-14 08:15:22,432 INFO L159 IcfgInterpreter]: Started Sifa with 90 locations of interest [2022-12-14 08:15:22,432 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:15:22,433 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:15:22,433 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:15:22,433 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:16:05,316 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 08:16:05,762 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 08:16:06,326 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:16:47,480 WARN L233 SmtUtils]: Spent 7.85s on a formula simplification. DAG size of input: 593 DAG size of output: 335 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:16:57,452 WARN L233 SmtUtils]: Spent 6.48s on a formula simplification. DAG size of input: 572 DAG size of output: 410 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:17:03,349 WARN L233 SmtUtils]: Spent 5.64s on a formula simplification. DAG size of input: 568 DAG size of output: 406 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:17:16,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1328806685] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:17:16,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:17:16,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 08:17:16,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799303865] [2022-12-14 08:17:16,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:17:16,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 08:17:16,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:17:16,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 08:17:16,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=753, Unknown=0, NotChecked=0, Total=870 [2022-12-14 08:17:16,188 INFO L87 Difference]: Start difference. First operand 514 states and 743 transitions. Second operand has 25 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 8 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2022-12-14 08:17:49,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:17:49,803 INFO L93 Difference]: Finished difference Result 986 states and 1471 transitions. [2022-12-14 08:17:49,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 08:17:49,804 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 8 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 111 [2022-12-14 08:17:49,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:17:49,806 INFO L225 Difference]: With dead ends: 986 [2022-12-14 08:17:49,807 INFO L226 Difference]: Without dead ends: 611 [2022-12-14 08:17:49,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 96.4s TimeCoverageRelationStatistics Valid=213, Invalid=1269, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 08:17:49,808 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 189 mSDsluCounter, 3852 mSDsCounter, 0 mSdLazyCounter, 2100 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 4137 SdHoareTripleChecker+Invalid, 2123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-12-14 08:17:49,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 4137 Invalid, 2123 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 2100 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-12-14 08:17:49,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2022-12-14 08:17:50,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 544. [2022-12-14 08:17:50,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 360 states have (on average 1.3888888888888888) internal successors, (500), 365 states have internal predecessors, (500), 143 states have call successors, (143), 42 states have call predecessors, (143), 40 states have return successors, (143), 138 states have call predecessors, (143), 142 states have call successors, (143) [2022-12-14 08:17:50,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 786 transitions. [2022-12-14 08:17:50,141 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 786 transitions. Word has length 111 [2022-12-14 08:17:50,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:17:50,141 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 786 transitions. [2022-12-14 08:17:50,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 8 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2022-12-14 08:17:50,142 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 786 transitions. [2022-12-14 08:17:50,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-14 08:17:50,143 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:17:50,143 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:17:50,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 08:17:50,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:17:50,344 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:17:50,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:17:50,344 INFO L85 PathProgramCache]: Analyzing trace with hash -884216543, now seen corresponding path program 1 times [2022-12-14 08:17:50,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:17:50,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713585728] [2022-12-14 08:17:50,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:17:50,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:17:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:17:50,440 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 08:17:50,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:17:50,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713585728] [2022-12-14 08:17:50,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713585728] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:17:50,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153286560] [2022-12-14 08:17:50,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:17:50,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:17:50,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:17:50,442 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:17:50,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 08:17:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:17:50,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 1332 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:17:50,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:17:50,663 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 08:17:50,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:17:50,722 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 08:17:50,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153286560] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:17:50,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2076769864] [2022-12-14 08:17:50,725 INFO L159 IcfgInterpreter]: Started Sifa with 88 locations of interest [2022-12-14 08:17:50,726 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:17:50,726 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:17:50,726 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:17:50,726 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:18:32,890 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 08:18:33,203 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-12-14 08:18:33,270 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 247 for LOIs [2022-12-14 08:18:33,338 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 237 for LOIs [2022-12-14 08:18:33,408 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 08:18:33,719 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:19:12,217 WARN L233 SmtUtils]: Spent 7.49s on a formula simplification. DAG size of input: 623 DAG size of output: 443 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:19:19,855 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 547 DAG size of output: 394 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:19:31,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2076769864] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:19:31,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:19:31,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 08:19:31,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122176239] [2022-12-14 08:19:31,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:19:31,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 08:19:31,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:19:31,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 08:19:31,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1076, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 08:19:31,412 INFO L87 Difference]: Start difference. First operand 544 states and 786 transitions. Second operand has 30 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 10 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) [2022-12-14 08:19:52,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:19:52,082 INFO L93 Difference]: Finished difference Result 1013 states and 1506 transitions. [2022-12-14 08:19:52,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 08:19:52,083 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 10 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) Word has length 103 [2022-12-14 08:19:52,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:19:52,086 INFO L225 Difference]: With dead ends: 1013 [2022-12-14 08:19:52,086 INFO L226 Difference]: Without dead ends: 638 [2022-12-14 08:19:52,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 276 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 65.9s TimeCoverageRelationStatistics Valid=138, Invalid=1268, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 08:19:52,088 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 64 mSDsluCounter, 4650 mSDsCounter, 0 mSdLazyCounter, 3921 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 4926 SdHoareTripleChecker+Invalid, 3931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-12-14 08:19:52,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 4926 Invalid, 3931 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3921 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2022-12-14 08:19:52,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-12-14 08:19:52,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 582. [2022-12-14 08:19:52,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 392 states have (on average 1.3903061224489797) internal successors, (545), 397 states have internal predecessors, (545), 146 states have call successors, (146), 45 states have call predecessors, (146), 43 states have return successors, (146), 141 states have call predecessors, (146), 145 states have call successors, (146) [2022-12-14 08:19:52,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 837 transitions. [2022-12-14 08:19:52,509 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 837 transitions. Word has length 103 [2022-12-14 08:19:52,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:19:52,509 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 837 transitions. [2022-12-14 08:19:52,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 10 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) [2022-12-14 08:19:52,509 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 837 transitions. [2022-12-14 08:19:52,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-12-14 08:19:52,511 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:19:52,511 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:19:52,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 08:19:52,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:19:52,713 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:19:52,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:19:52,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1901380885, now seen corresponding path program 1 times [2022-12-14 08:19:52,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:19:52,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331059749] [2022-12-14 08:19:52,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:19:52,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:19:52,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:19:52,804 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 08:19:52,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:19:52,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331059749] [2022-12-14 08:19:52,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331059749] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:19:52,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918781369] [2022-12-14 08:19:52,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:19:52,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:19:52,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:19:52,806 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:19:52,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80c3046-f9b9-46cd-b839-378953aeb96a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 08:19:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:19:53,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:19:53,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:19:53,053 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 08:19:53,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:19:53,100 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 08:19:53,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918781369] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:19:53,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [556079923] [2022-12-14 08:19:53,103 INFO L159 IcfgInterpreter]: Started Sifa with 87 locations of interest [2022-12-14 08:19:53,103 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:19:53,104 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:19:53,104 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:19:53,104 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:20:34,552 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 08:20:34,870 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 273 for LOIs [2022-12-14 08:20:36,877 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 241 for LOIs [2022-12-14 08:20:36,920 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 08:20:37,228 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 273 for LOIs [2022-12-14 08:20:40,186 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 283 for LOIs [2022-12-14 08:20:49,810 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 231 for LOIs [2022-12-14 08:20:49,849 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 253 for LOIs [2022-12-14 08:20:49,924 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 437 for LOIs [2022-12-14 08:20:50,584 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 477 for LOIs [2022-12-14 08:20:55,858 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 255 for LOIs [2022-12-14 08:20:55,904 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 258 for LOIs [2022-12-14 08:20:55,956 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:21:35,254 WARN L233 SmtUtils]: Spent 9.14s on a formula simplification. DAG size of input: 599 DAG size of output: 421 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:21:55,366 WARN L233 SmtUtils]: Spent 5.06s on a formula simplification. DAG size of input: 561 DAG size of output: 419 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:22:36,563 WARN L233 SmtUtils]: Spent 8.55s on a formula simplification. DAG size of input: 477 DAG size of output: 368 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)