./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur --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 68503ade3bb1f8128c7da84cd7c3e560bf5cd62b2b0df855f3aa4d33b9063aa0 --- 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-38b53e6 [2022-11-25 23:42:44,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:42:44,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:42:44,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:42:44,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:42:44,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:42:44,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:42:44,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:42:44,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:42:44,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:42:44,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:42:44,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:42:44,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:42:44,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:42:44,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:42:44,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:42:44,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:42:44,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:42:44,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:42:44,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:42:44,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:42:44,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:42:44,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:42:44,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:42:44,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:42:44,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:42:44,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:42:44,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:42:44,076 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:42:44,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:42:44,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:42:44,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:42:44,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:42:44,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:42:44,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:42:44,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:42:44,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:42:44,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:42:44,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:42:44,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:42:44,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:42:44,088 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 23:42:44,123 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:42:44,128 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:42:44,129 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:42:44,129 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:42:44,130 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:42:44,130 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:42:44,130 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:42:44,131 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:42:44,131 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:42:44,131 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:42:44,132 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:42:44,133 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:42:44,133 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:42:44,133 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:42:44,133 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:42:44,133 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:42:44,134 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:42:44,134 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:42:44,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:42:44,135 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:42:44,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:42:44,135 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:42:44,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:42:44,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:42:44,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:42:44,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:42:44,136 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:42:44,137 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:42:44,137 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:42:44,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:42:44,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:42:44,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:42:44,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:42:44,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:42:44,138 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:42:44,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:42:44,139 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:42:44,139 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:42:44,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:42:44,140 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:42:44,140 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:42:44,142 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_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68503ade3bb1f8128c7da84cd7c3e560bf5cd62b2b0df855f3aa4d33b9063aa0 [2022-11-25 23:42:44,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:42:44,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:42:44,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:42:44,484 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:42:44,484 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:42:44,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/product-lines/email_spec1_product15.cil.c [2022-11-25 23:42:47,592 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:42:47,888 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:42:47,888 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/sv-benchmarks/c/product-lines/email_spec1_product15.cil.c [2022-11-25 23:42:47,906 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/data/0512e4f73/80d434fc379f4d75972faf6f75f06439/FLAG9db1fee5d [2022-11-25 23:42:47,921 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/data/0512e4f73/80d434fc379f4d75972faf6f75f06439 [2022-11-25 23:42:47,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:42:47,926 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:42:47,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:42:47,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:42:47,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:42:47,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:42:47" (1/1) ... [2022-11-25 23:42:47,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2779f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:42:47, skipping insertion in model container [2022-11-25 23:42:47,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:42:47" (1/1) ... [2022-11-25 23:42:47,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:42:48,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:42:48,434 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_ff739426-0735-4947-b869-ecf8ca13d3b1/sv-benchmarks/c/product-lines/email_spec1_product15.cil.c[34816,34829] [2022-11-25 23:42:48,512 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:42:48,514 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:42:48,517 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:42:48,563 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:42:48,573 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:42:48,577 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:42:48,589 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:42:48,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:42:48,616 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:42:48,672 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_ff739426-0735-4947-b869-ecf8ca13d3b1/sv-benchmarks/c/product-lines/email_spec1_product15.cil.c[34816,34829] [2022-11-25 23:42:48,685 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:42:48,686 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:42:48,689 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:42:48,710 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:42:48,712 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:42:48,714 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:42:48,719 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:42:48,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:42:48,753 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:42:48,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:42:48 WrapperNode [2022-11-25 23:42:48,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:42:48,780 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:42:48,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:42:48,780 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:42:48,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:42:48" (1/1) ... [2022-11-25 23:42:48,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:42:48" (1/1) ... [2022-11-25 23:42:48,867 INFO L138 Inliner]: procedures = 125, calls = 196, calls flagged for inlining = 54, calls inlined = 45, statements flattened = 875 [2022-11-25 23:42:48,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:42:48,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:42:48,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:42:48,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:42:48,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:42:48" (1/1) ... [2022-11-25 23:42:48,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:42:48" (1/1) ... [2022-11-25 23:42:48,883 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:42:48" (1/1) ... [2022-11-25 23:42:48,883 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:42:48" (1/1) ... [2022-11-25 23:42:48,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:42:48" (1/1) ... [2022-11-25 23:42:48,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:42:48" (1/1) ... [2022-11-25 23:42:48,907 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:42:48" (1/1) ... [2022-11-25 23:42:48,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:42:48" (1/1) ... [2022-11-25 23:42:48,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:42:48,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:42:48,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:42:48,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:42:48,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:42:48" (1/1) ... [2022-11-25 23:42:48,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:42:48,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:42:48,949 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:42:48,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:42:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-25 23:42:49,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-25 23:42:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-25 23:42:49,012 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-25 23:42:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-25 23:42:49,012 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-25 23:42:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-25 23:42:49,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-25 23:42:49,014 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-25 23:42:49,014 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-25 23:42:49,014 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-25 23:42:49,016 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-25 23:42:49,016 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-25 23:42:49,016 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-25 23:42:49,017 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-25 23:42:49,017 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-25 23:42:49,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-25 23:42:49,018 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-25 23:42:49,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-25 23:42:49,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:42:49,018 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-25 23:42:49,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-25 23:42:49,019 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-25 23:42:49,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-25 23:42:49,019 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-25 23:42:49,019 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-25 23:42:49,020 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-25 23:42:49,020 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-25 23:42:49,020 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-25 23:42:49,021 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-25 23:42:49,021 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-25 23:42:49,022 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-25 23:42:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-25 23:42:49,023 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-25 23:42:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:42:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-25 23:42:49,023 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-25 23:42:49,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:42:49,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:42:49,280 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:42:49,283 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:42:50,172 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:42:50,658 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:42:50,659 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 23:42:50,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:42:50 BoogieIcfgContainer [2022-11-25 23:42:50,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:42:50,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:42:50,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:42:50,669 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:42:50,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:42:47" (1/3) ... [2022-11-25 23:42:50,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b79e1fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:42:50, skipping insertion in model container [2022-11-25 23:42:50,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:42:48" (2/3) ... [2022-11-25 23:42:50,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b79e1fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:42:50, skipping insertion in model container [2022-11-25 23:42:50,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:42:50" (3/3) ... [2022-11-25 23:42:50,677 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product15.cil.c [2022-11-25 23:42:50,699 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:42:50,699 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:42:50,781 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:42:50,789 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;@8c4d7c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:42:50,789 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:42:50,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 94 states have internal predecessors, (124), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-11-25 23:42:50,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-25 23:42:50,808 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:42:50,808 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:42:50,809 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:42:50,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:42:50,815 INFO L85 PathProgramCache]: Analyzing trace with hash -926621199, now seen corresponding path program 1 times [2022-11-25 23:42:50,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:42:50,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301111199] [2022-11-25 23:42:50,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:42:50,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:42:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:42:51,203 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-25 23:42:51,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:42:51,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301111199] [2022-11-25 23:42:51,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301111199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:42:51,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:42:51,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:42:51,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494039499] [2022-11-25 23:42:51,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:42:51,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:42:51,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:42:51,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:42:51,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:42:51,265 INFO L87 Difference]: Start difference. First operand has 151 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 94 states have internal predecessors, (124), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 23:42:51,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:42:51,396 INFO L93 Difference]: Finished difference Result 219 states and 294 transitions. [2022-11-25 23:42:51,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:42:51,399 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2022-11-25 23:42:51,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:42:51,413 INFO L225 Difference]: With dead ends: 219 [2022-11-25 23:42:51,413 INFO L226 Difference]: Without dead ends: 148 [2022-11-25 23:42:51,419 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 [2022-11-25 23:42:51,425 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:42:51,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:42:51,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-11-25 23:42:51,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2022-11-25 23:42:51,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 88 states have (on average 1.3409090909090908) internal successors, (118), 91 states have internal predecessors, (118), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-11-25 23:42:51,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 201 transitions. [2022-11-25 23:42:51,506 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 201 transitions. Word has length 56 [2022-11-25 23:42:51,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:42:51,507 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 201 transitions. [2022-11-25 23:42:51,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 23:42:51,508 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 201 transitions. [2022-11-25 23:42:51,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-25 23:42:51,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:42:51,512 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:42:51,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:42:51,512 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:42:51,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:42:51,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1910243681, now seen corresponding path program 1 times [2022-11-25 23:42:51,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:42:51,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521071715] [2022-11-25 23:42:51,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:42:51,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:42:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:42:51,815 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-25 23:42:51,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:42:51,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521071715] [2022-11-25 23:42:51,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521071715] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:42:51,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:42:51,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:42:51,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870276965] [2022-11-25 23:42:51,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:42:51,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:42:51,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:42:51,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:42:51,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:42:51,822 INFO L87 Difference]: Start difference. First operand 148 states and 201 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 23:42:51,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:42:51,988 INFO L93 Difference]: Finished difference Result 215 states and 282 transitions. [2022-11-25 23:42:51,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:42:51,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 57 [2022-11-25 23:42:51,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:42:51,990 INFO L225 Difference]: With dead ends: 215 [2022-11-25 23:42:51,990 INFO L226 Difference]: Without dead ends: 150 [2022-11-25 23:42:51,991 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 [2022-11-25 23:42:51,993 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:42:51,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:42:51,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-25 23:42:52,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-25 23:42:52,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 90 states have (on average 1.3333333333333333) internal successors, (120), 93 states have internal predecessors, (120), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-11-25 23:42:52,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 203 transitions. [2022-11-25 23:42:52,009 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 203 transitions. Word has length 57 [2022-11-25 23:42:52,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:42:52,010 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 203 transitions. [2022-11-25 23:42:52,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 23:42:52,010 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 203 transitions. [2022-11-25 23:42:52,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-25 23:42:52,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:42:52,013 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:42:52,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:42:52,013 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:42:52,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:42:52,014 INFO L85 PathProgramCache]: Analyzing trace with hash -62910922, now seen corresponding path program 1 times [2022-11-25 23:42:52,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:42:52,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91877155] [2022-11-25 23:42:52,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:42:52,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:42:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:42:52,104 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-25 23:42:52,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:42:52,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91877155] [2022-11-25 23:42:52,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91877155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:42:52,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:42:52,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:42:52,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903972956] [2022-11-25 23:42:52,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:42:52,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:42:52,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:42:52,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:42:52,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:42:52,108 INFO L87 Difference]: Start difference. First operand 150 states and 203 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 23:42:52,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:42:52,200 INFO L93 Difference]: Finished difference Result 330 states and 465 transitions. [2022-11-25 23:42:52,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:42:52,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 62 [2022-11-25 23:42:52,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:42:52,203 INFO L225 Difference]: With dead ends: 330 [2022-11-25 23:42:52,203 INFO L226 Difference]: Without dead ends: 198 [2022-11-25 23:42:52,204 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 [2022-11-25 23:42:52,206 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 57 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:42:52,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 357 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:42:52,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-25 23:42:52,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 193. [2022-11-25 23:42:52,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 122 states have (on average 1.4180327868852458) internal successors, (173), 125 states have internal predecessors, (173), 53 states have call successors, (53), 17 states have call predecessors, (53), 17 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-11-25 23:42:52,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 278 transitions. [2022-11-25 23:42:52,234 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 278 transitions. Word has length 62 [2022-11-25 23:42:52,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:42:52,236 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 278 transitions. [2022-11-25 23:42:52,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 23:42:52,236 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 278 transitions. [2022-11-25 23:42:52,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-25 23:42:52,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:42:52,246 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:42:52,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:42:52,247 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:42:52,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:42:52,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1177494779, now seen corresponding path program 1 times [2022-11-25 23:42:52,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:42:52,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900488544] [2022-11-25 23:42:52,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:42:52,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:42:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:42:52,426 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-25 23:42:52,426 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:42:52,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900488544] [2022-11-25 23:42:52,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900488544] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:42:52,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614358443] [2022-11-25 23:42:52,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:42:52,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:42:52,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:42:52,431 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:42:52,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:42:52,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:42:52,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 916 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:42:52,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:42:52,869 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-25 23:42:52,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:42:52,964 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-25 23:42:52,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614358443] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:42:52,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1842847627] [2022-11-25 23:42:52,989 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-25 23:42:52,989 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:42:52,993 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:42:52,999 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:42:53,000 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:43:37,236 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-25 23:43:37,661 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-25 23:43:38,067 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 261 for LOIs [2022-11-25 23:43:40,136 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 241 for LOIs [2022-11-25 23:43:40,184 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 263 for LOIs [2022-11-25 23:43:45,150 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 233 for LOIs [2022-11-25 23:43:45,192 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 473 for LOIs [2022-11-25 23:43:48,911 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:44:19,487 WARN L233 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 468 DAG size of output: 296 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:44:24,672 WARN L233 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 480 DAG size of output: 291 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:44:33,570 WARN L233 SmtUtils]: Spent 7.68s on a formula simplification. DAG size of input: 490 DAG size of output: 350 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:44:39,791 WARN L233 SmtUtils]: Spent 5.98s on a formula simplification. DAG size of input: 502 DAG size of output: 325 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:44:49,782 WARN L233 SmtUtils]: Spent 8.54s on a formula simplification. DAG size of input: 512 DAG size of output: 372 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:45:03,948 WARN L233 SmtUtils]: Spent 13.81s on a formula simplification. DAG size of input: 587 DAG size of output: 356 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:45:14,767 WARN L233 SmtUtils]: Spent 10.26s on a formula simplification. DAG size of input: 559 DAG size of output: 430 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:45:22,581 WARN L233 SmtUtils]: Spent 7.43s on a formula simplification. DAG size of input: 563 DAG size of output: 367 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:45:30,265 WARN L233 SmtUtils]: Spent 7.33s on a formula simplification. DAG size of input: 559 DAG size of output: 363 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:45:38,147 WARN L233 SmtUtils]: Spent 7.48s on a formula simplification. DAG size of input: 565 DAG size of output: 369 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:45:57,234 WARN L233 SmtUtils]: Spent 14.74s on a formula simplification. DAG size of input: 473 DAG size of output: 364 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:46:26,544 WARN L233 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 481 DAG size of output: 298 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:46:36,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1842847627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:46:36,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:46:36,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [4, 4, 4] total 45 [2022-11-25 23:46:36,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014476528] [2022-11-25 23:46:36,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:46:36,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-11-25 23:46:36,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:46:36,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-11-25 23:46:36,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1866, Unknown=0, NotChecked=0, Total=1980 [2022-11-25 23:46:36,979 INFO L87 Difference]: Start difference. First operand 193 states and 278 transitions. Second operand has 40 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 25 states have internal predecessors, (33), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 23:46:45,434 WARN L233 SmtUtils]: Spent 5.68s on a formula simplification. DAG size of input: 509 DAG size of output: 354 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:46:52,396 WARN L233 SmtUtils]: Spent 6.58s on a formula simplification. DAG size of input: 449 DAG size of output: 412 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:46:58,518 WARN L233 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 457 DAG size of output: 377 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:47:04,600 WARN L233 SmtUtils]: Spent 5.58s on a formula simplification. DAG size of input: 453 DAG size of output: 373 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:47:10,758 WARN L233 SmtUtils]: Spent 5.50s on a formula simplification. DAG size of input: 459 DAG size of output: 379 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:47:50,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:50,854 INFO L93 Difference]: Finished difference Result 547 states and 866 transitions. [2022-11-25 23:47:50,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-25 23:47:50,855 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 25 states have internal predecessors, (33), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 63 [2022-11-25 23:47:50,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:50,861 INFO L225 Difference]: With dead ends: 547 [2022-11-25 23:47:50,862 INFO L226 Difference]: Without dead ends: 372 [2022-11-25 23:47:50,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 145 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 216.2s TimeCoverageRelationStatistics Valid=183, Invalid=2787, Unknown=0, NotChecked=0, Total=2970 [2022-11-25 23:47:50,867 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 266 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 5012 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 4190 SdHoareTripleChecker+Invalid, 5042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 5012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:50,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 4190 Invalid, 5042 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [30 Valid, 5012 Invalid, 0 Unknown, 0 Unchecked, 24.9s Time] [2022-11-25 23:47:50,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2022-11-25 23:47:51,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 284. [2022-11-25 23:47:51,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 203 states have (on average 1.4729064039408868) internal successors, (299), 206 states have internal predecessors, (299), 59 states have call successors, (59), 23 states have call predecessors, (59), 21 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2022-11-25 23:47:51,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 416 transitions. [2022-11-25 23:47:51,152 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 416 transitions. Word has length 63 [2022-11-25 23:47:51,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:51,153 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 416 transitions. [2022-11-25 23:47:51,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 25 states have internal predecessors, (33), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 23:47:51,154 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 416 transitions. [2022-11-25 23:47:51,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-25 23:47:51,156 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:51,156 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:51,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:47:51,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:51,365 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:47:51,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:51,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1162291949, now seen corresponding path program 1 times [2022-11-25 23:47:51,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:51,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301507030] [2022-11-25 23:47:51,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:51,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:51,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:51,542 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 23:47:51,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:51,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301507030] [2022-11-25 23:47:51,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301507030] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:51,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:51,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:47:51,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710360801] [2022-11-25 23:47:51,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:51,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:47:51,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:51,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:47:51,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:47:51,548 INFO L87 Difference]: Start difference. First operand 284 states and 416 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 23:47:51,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:51,944 INFO L93 Difference]: Finished difference Result 635 states and 957 transitions. [2022-11-25 23:47:51,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:47:51,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 68 [2022-11-25 23:47:51,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:51,950 INFO L225 Difference]: With dead ends: 635 [2022-11-25 23:47:51,951 INFO L226 Difference]: Without dead ends: 398 [2022-11-25 23:47:51,952 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 [2022-11-25 23:47:51,953 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 55 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:51,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 367 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:47:51,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-11-25 23:47:52,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 391. [2022-11-25 23:47:52,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 285 states have (on average 1.4982456140350877) internal successors, (427), 288 states have internal predecessors, (427), 84 states have call successors, (84), 23 states have call predecessors, (84), 21 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2022-11-25 23:47:52,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 594 transitions. [2022-11-25 23:47:52,231 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 594 transitions. Word has length 68 [2022-11-25 23:47:52,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:52,232 INFO L495 AbstractCegarLoop]: Abstraction has 391 states and 594 transitions. [2022-11-25 23:47:52,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 23:47:52,232 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 594 transitions. [2022-11-25 23:47:52,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-25 23:47:52,235 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:52,235 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:52,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:47:52,236 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:47:52,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:52,237 INFO L85 PathProgramCache]: Analyzing trace with hash 285726159, now seen corresponding path program 1 times [2022-11-25 23:47:52,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:52,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623525272] [2022-11-25 23:47:52,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:52,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:52,376 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 23:47:52,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:52,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623525272] [2022-11-25 23:47:52,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623525272] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:47:52,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305589025] [2022-11-25 23:47:52,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:52,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:52,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:52,387 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:47:52,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:47:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:52,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 937 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:47:52,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:47:52,756 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 23:47:52,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:47:52,847 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 23:47:52,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305589025] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:47:52,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [175289545] [2022-11-25 23:47:52,852 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2022-11-25 23:47:52,852 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:47:52,853 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:47:52,853 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:47:52,853 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:48:31,773 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-11-25 23:48:32,124 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-11-25 23:48:32,479 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 254 for LOIs [2022-11-25 23:48:34,257 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 234 for LOIs [2022-11-25 23:48:34,316 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 254 for LOIs [2022-11-25 23:48:39,243 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 226 for LOIs [2022-11-25 23:48:39,294 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 472 for LOIs [2022-11-25 23:48:41,389 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:48:59,790 WARN L233 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 470 DAG size of output: 288 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:49:15,687 WARN L233 SmtUtils]: Spent 6.10s on a formula simplification. DAG size of input: 468 DAG size of output: 296 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:49:21,141 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 480 DAG size of output: 291 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:49:30,317 WARN L233 SmtUtils]: Spent 7.91s on a formula simplification. DAG size of input: 490 DAG size of output: 350 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:49:36,733 WARN L233 SmtUtils]: Spent 6.19s on a formula simplification. DAG size of input: 502 DAG size of output: 325 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:49:46,980 WARN L233 SmtUtils]: Spent 8.77s on a formula simplification. DAG size of input: 512 DAG size of output: 372 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:50:10,479 WARN L233 SmtUtils]: Spent 23.11s on a formula simplification. DAG size of input: 588 DAG size of output: 458 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:50:33,364 WARN L233 SmtUtils]: Spent 6.43s on a formula simplification. DAG size of input: 472 DAG size of output: 263 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:51:08,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [175289545] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:51:08,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:51:08,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [4, 4, 4] total 49 [2022-11-25 23:51:08,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130698678] [2022-11-25 23:51:08,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:51:08,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-11-25 23:51:08,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:51:08,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-11-25 23:51:08,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=2208, Unknown=0, NotChecked=0, Total=2352 [2022-11-25 23:51:08,936 INFO L87 Difference]: Start difference. First operand 391 states and 594 transitions. Second operand has 44 states, 30 states have (on average 1.2) internal successors, (36), 28 states have internal predecessors, (36), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-25 23:51:34,452 WARN L233 SmtUtils]: Spent 22.51s on a formula simplification. DAG size of input: 483 DAG size of output: 458 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:51:40,657 WARN L233 SmtUtils]: Spent 5.79s on a formula simplification. DAG size of input: 487 DAG size of output: 348 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:51:46,913 WARN L233 SmtUtils]: Spent 5.85s on a formula simplification. DAG size of input: 493 DAG size of output: 354 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:51:53,236 WARN L233 SmtUtils]: Spent 5.80s on a formula simplification. DAG size of input: 489 DAG size of output: 350 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:51:59,541 WARN L233 SmtUtils]: Spent 5.79s on a formula simplification. DAG size of input: 495 DAG size of output: 356 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:52:05,837 WARN L233 SmtUtils]: Spent 5.58s on a formula simplification. DAG size of input: 491 DAG size of output: 352 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:52:12,420 WARN L233 SmtUtils]: Spent 5.99s on a formula simplification. DAG size of input: 497 DAG size of output: 358 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:52:18,928 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification. DAG size of input: 499 DAG size of output: 360 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:52:32,412 WARN L233 SmtUtils]: Spent 11.83s on a formula simplification. DAG size of input: 584 DAG size of output: 447 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:52:45,855 WARN L233 SmtUtils]: Spent 12.08s on a formula simplification. DAG size of input: 586 DAG size of output: 448 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:53:12,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:12,085 INFO L93 Difference]: Finished difference Result 784 states and 1215 transitions. [2022-11-25 23:53:12,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-25 23:53:12,086 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 30 states have (on average 1.2) internal successors, (36), 28 states have internal predecessors, (36), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 69 [2022-11-25 23:53:12,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:12,090 INFO L225 Difference]: With dead ends: 784 [2022-11-25 23:53:12,090 INFO L226 Difference]: Without dead ends: 519 [2022-11-25 23:53:12,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 161 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 789 ImplicationChecksByTransitivity, 245.4s TimeCoverageRelationStatistics Valid=254, Invalid=3528, Unknown=0, NotChecked=0, Total=3782 [2022-11-25 23:53:12,094 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 221 mSDsluCounter, 4007 mSDsCounter, 0 mSdLazyCounter, 4924 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 4217 SdHoareTripleChecker+Invalid, 4954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 4924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:53:12,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 4217 Invalid, 4954 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [30 Valid, 4924 Invalid, 0 Unknown, 0 Unchecked, 24.3s Time] [2022-11-25 23:53:12,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-11-25 23:53:12,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 414. [2022-11-25 23:53:12,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 305 states have (on average 1.498360655737705) internal successors, (457), 309 states have internal predecessors, (457), 86 states have call successors, (86), 24 states have call predecessors, (86), 22 states have return successors, (85), 82 states have call predecessors, (85), 85 states have call successors, (85) [2022-11-25 23:53:12,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 628 transitions. [2022-11-25 23:53:12,523 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 628 transitions. Word has length 69 [2022-11-25 23:53:12,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:12,524 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 628 transitions. [2022-11-25 23:53:12,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 30 states have (on average 1.2) internal successors, (36), 28 states have internal predecessors, (36), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-25 23:53:12,524 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 628 transitions. [2022-11-25 23:53:12,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-25 23:53:12,527 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:12,527 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:53:12,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:53:12,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:53:12,735 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:53:12,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:12,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1175061797, now seen corresponding path program 1 times [2022-11-25 23:53:12,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:53:12,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689734995] [2022-11-25 23:53:12,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:12,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:53:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:12,912 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-25 23:53:12,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:53:12,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689734995] [2022-11-25 23:53:12,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689734995] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:53:12,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67576893] [2022-11-25 23:53:12,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:12,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:53:12,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:53:12,915 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:53:12,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff739426-0735-4947-b869-ecf8ca13d3b1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 23:53:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:13,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 1043 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:53:13,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:53:13,378 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-25 23:53:13,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:53:13,473 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-25 23:53:13,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67576893] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:53:13,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1571143538] [2022-11-25 23:53:13,482 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-25 23:53:13,482 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:53:13,484 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:53:13,485 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:53:13,485 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:53:54,811 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-25 23:53:55,253 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 234 for LOIs [2022-11-25 23:53:55,322 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 222 for LOIs [2022-11-25 23:53:55,392 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-25 23:53:55,736 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 235 for LOIs [2022-11-25 23:53:55,807 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:54:09,345 WARN L233 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 444 DAG size of output: 243 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:54:14,714 WARN L233 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 467 DAG size of output: 263 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:54:28,833 WARN L233 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 468 DAG size of output: 296 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:54:34,014 WARN L233 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 480 DAG size of output: 291 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:54:43,043 WARN L233 SmtUtils]: Spent 7.78s on a formula simplification. DAG size of input: 490 DAG size of output: 350 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:54:48,990 WARN L233 SmtUtils]: Spent 5.73s on a formula simplification. DAG size of input: 502 DAG size of output: 325 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:54:58,777 WARN L233 SmtUtils]: Spent 8.39s on a formula simplification. DAG size of input: 512 DAG size of output: 372 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:55:16,336 WARN L233 SmtUtils]: Spent 17.24s on a formula simplification. DAG size of input: 623 DAG size of output: 483 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:55:31,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1571143538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:55:31,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:55:31,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 34 [2022-11-25 23:55:31,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921624990] [2022-11-25 23:55:31,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:55:31,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-25 23:55:31,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:55:31,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-25 23:55:31,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1019, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 23:55:31,309 INFO L87 Difference]: Start difference. First operand 414 states and 628 transitions. Second operand has 29 states, 19 states have (on average 1.894736842105263) internal successors, (36), 17 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2022-11-25 23:55:43,379 WARN L233 SmtUtils]: Spent 9.82s on a formula simplification. DAG size of input: 541 DAG size of output: 399 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:55:49,293 WARN L233 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 485 DAG size of output: 357 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:55:55,148 WARN L233 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 489 DAG size of output: 362 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:56:01,008 WARN L233 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 491 DAG size of output: 364 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:56:17,900 WARN L233 SmtUtils]: Spent 7.83s on a formula simplification. DAG size of input: 560 DAG size of output: 400 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)