./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3245554d-f926-43cb-8240-3679e86c1121/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3245554d-f926-43cb-8240-3679e86c1121/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3245554d-f926-43cb-8240-3679e86c1121/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3245554d-f926-43cb-8240-3679e86c1121/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3245554d-f926-43cb-8240-3679e86c1121/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3245554d-f926-43cb-8240-3679e86c1121/bin/utaipan-EQgc7hIp5V --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 bad89116a36bb46e02a3fc807805b2b6d03550190d8073d361f25c2754b15f25 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:02:41,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:02:41,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:02:41,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:02:41,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:02:41,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:02:41,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:02:41,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:02:41,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:02:41,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:02:41,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:02:41,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:02:41,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:02:41,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:02:41,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:02:41,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:02:41,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:02:41,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:02:41,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:02:41,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:02:41,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:02:41,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:02:41,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:02:41,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:02:41,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:02:41,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:02:41,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:02:41,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:02:41,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:02:41,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:02:41,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:02:41,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:02:41,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:02:41,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:02:41,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:02:41,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:02:41,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:02:41,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:02:41,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:02:41,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:02:41,931 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:02:41,932 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3245554d-f926-43cb-8240-3679e86c1121/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:02:41,984 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:02:41,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:02:41,984 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:02:41,985 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:02:41,985 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:02:41,985 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:02:41,986 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:02:41,986 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:02:41,986 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:02:41,986 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:02:41,986 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:02:41,987 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:02:41,987 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:02:41,987 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:02:41,987 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:02:41,987 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:02:41,988 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:02:41,988 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:02:41,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:02:41,989 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:02:41,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:02:41,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:02:41,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:02:41,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:02:41,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:02:41,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:02:41,996 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:02:41,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:02:41,997 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:02:41,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:02:41,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:02:41,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:02:41,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:02:41,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:02:41,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:02:41,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:02:41,999 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:02:42,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:02:42,000 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:02:42,000 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:02:42,000 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:02:42,000 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_3245554d-f926-43cb-8240-3679e86c1121/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3245554d-f926-43cb-8240-3679e86c1121/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bad89116a36bb46e02a3fc807805b2b6d03550190d8073d361f25c2754b15f25 [2021-11-23 02:02:42,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:02:42,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:02:42,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:02:42,292 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:02:42,293 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:02:42,294 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3245554d-f926-43cb-8240-3679e86c1121/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/email_spec6_product31.cil.c [2021-11-23 02:02:42,362 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3245554d-f926-43cb-8240-3679e86c1121/bin/utaipan-EQgc7hIp5V/data/0ee58a957/e6cb515474ac49ce91d0913bfc6e3b38/FLAG0fe720f46 [2021-11-23 02:02:43,090 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:02:43,091 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3245554d-f926-43cb-8240-3679e86c1121/sv-benchmarks/c/product-lines/email_spec6_product31.cil.c [2021-11-23 02:02:43,121 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3245554d-f926-43cb-8240-3679e86c1121/bin/utaipan-EQgc7hIp5V/data/0ee58a957/e6cb515474ac49ce91d0913bfc6e3b38/FLAG0fe720f46 [2021-11-23 02:02:43,269 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3245554d-f926-43cb-8240-3679e86c1121/bin/utaipan-EQgc7hIp5V/data/0ee58a957/e6cb515474ac49ce91d0913bfc6e3b38 [2021-11-23 02:02:43,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:02:43,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:02:43,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:02:43,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:02:43,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:02:43,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:02:43" (1/1) ... [2021-11-23 02:02:43,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33f87beb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:43, skipping insertion in model container [2021-11-23 02:02:43,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:02:43" (1/1) ... [2021-11-23 02:02:43,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:02:43,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:02:43,836 WARN L230 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_3245554d-f926-43cb-8240-3679e86c1121/sv-benchmarks/c/product-lines/email_spec6_product31.cil.c[31008,31021] [2021-11-23 02:02:44,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:02:44,157 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:02:44,242 WARN L230 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_3245554d-f926-43cb-8240-3679e86c1121/sv-benchmarks/c/product-lines/email_spec6_product31.cil.c[31008,31021] [2021-11-23 02:02:44,288 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:02:44,352 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:02:44,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:44 WrapperNode [2021-11-23 02:02:44,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:02:44,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:02:44,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:02:44,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:02:44,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:44" (1/1) ... [2021-11-23 02:02:44,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:44" (1/1) ... [2021-11-23 02:02:44,493 INFO L137 Inliner]: procedures = 132, calls = 225, calls flagged for inlining = 62, calls inlined = 57, statements flattened = 1045 [2021-11-23 02:02:44,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:02:44,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:02:44,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:02:44,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:02:44,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:44" (1/1) ... [2021-11-23 02:02:44,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:44" (1/1) ... [2021-11-23 02:02:44,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:44" (1/1) ... [2021-11-23 02:02:44,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:44" (1/1) ... [2021-11-23 02:02:44,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:44" (1/1) ... [2021-11-23 02:02:44,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:44" (1/1) ... [2021-11-23 02:02:44,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:44" (1/1) ... [2021-11-23 02:02:44,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:02:44,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:02:44,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:02:44,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:02:44,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:44" (1/1) ... [2021-11-23 02:02:44,628 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:02:44,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3245554d-f926-43cb-8240-3679e86c1121/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:02:44,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3245554d-f926-43cb-8240-3679e86c1121/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:02:44,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3245554d-f926-43cb-8240-3679e86c1121/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:02:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-11-23 02:02:44,718 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-11-23 02:02:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-11-23 02:02:44,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-11-23 02:02:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-11-23 02:02:44,719 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-11-23 02:02:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-11-23 02:02:44,719 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-11-23 02:02:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-11-23 02:02:44,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-11-23 02:02:44,720 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-11-23 02:02:44,720 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-11-23 02:02:44,720 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-11-23 02:02:44,720 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-11-23 02:02:44,720 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-11-23 02:02:44,720 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-11-23 02:02:44,720 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-11-23 02:02:44,720 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-11-23 02:02:44,721 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-11-23 02:02:44,721 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-11-23 02:02:44,721 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-23 02:02:44,721 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-11-23 02:02:44,721 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-11-23 02:02:44,721 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-11-23 02:02:44,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-11-23 02:02:44,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:02:44,722 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-11-23 02:02:44,722 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-11-23 02:02:44,722 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-11-23 02:02:44,722 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-11-23 02:02:44,722 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-11-23 02:02:44,722 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-11-23 02:02:44,722 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-11-23 02:02:44,723 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-11-23 02:02:44,723 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-11-23 02:02:44,723 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-11-23 02:02:44,723 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-11-23 02:02:44,723 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-11-23 02:02:44,723 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-11-23 02:02:44,723 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-11-23 02:02:44,723 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-11-23 02:02:44,724 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-11-23 02:02:44,724 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-11-23 02:02:44,724 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-11-23 02:02:44,724 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-11-23 02:02:44,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-11-23 02:02:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:02:44,726 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-11-23 02:02:44,726 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-11-23 02:02:44,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:02:44,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:02:45,006 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:02:45,009 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:02:46,042 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:02:46,485 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:02:46,485 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 02:02:46,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:02:46 BoogieIcfgContainer [2021-11-23 02:02:46,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:02:46,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:02:46,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:02:46,495 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:02:46,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:02:43" (1/3) ... [2021-11-23 02:02:46,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f65f76b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:02:46, skipping insertion in model container [2021-11-23 02:02:46,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:44" (2/3) ... [2021-11-23 02:02:46,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f65f76b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:02:46, skipping insertion in model container [2021-11-23 02:02:46,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:02:46" (3/3) ... [2021-11-23 02:02:46,499 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec6_product31.cil.c [2021-11-23 02:02:46,506 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:02:46,506 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:02:46,562 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:02:46,570 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:02:46,570 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:02:46,596 INFO L276 IsEmpty]: Start isEmpty. Operand has 205 states, 119 states have (on average 1.3109243697478992) internal successors, (156), 123 states have internal predecessors, (156), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2021-11-23 02:02:46,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-23 02:02:46,611 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:02:46,612 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:02:46,612 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:02:46,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:02:46,623 INFO L85 PathProgramCache]: Analyzing trace with hash -371379297, now seen corresponding path program 1 times [2021-11-23 02:02:46,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:02:46,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968225097] [2021-11-23 02:02:46,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:02:46,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:02:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:02:47,061 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-23 02:02:47,062 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:02:47,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968225097] [2021-11-23 02:02:47,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968225097] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:02:47,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:02:47,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:02:47,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75183545] [2021-11-23 02:02:47,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:02:47,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:02:47,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:02:47,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:02:47,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:02:47,109 INFO L87 Difference]: Start difference. First operand has 205 states, 119 states have (on average 1.3109243697478992) internal successors, (156), 123 states have internal predecessors, (156), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-23 02:02:47,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:02:47,329 INFO L93 Difference]: Finished difference Result 327 states and 434 transitions. [2021-11-23 02:02:47,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:02:47,332 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 80 [2021-11-23 02:02:47,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:02:47,380 INFO L225 Difference]: With dead ends: 327 [2021-11-23 02:02:47,380 INFO L226 Difference]: Without dead ends: 202 [2021-11-23 02:02:47,393 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:02:47,398 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:02:47,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 237 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:02:47,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-11-23 02:02:47,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2021-11-23 02:02:47,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 117 states have (on average 1.2820512820512822) internal successors, (150), 120 states have internal predecessors, (150), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2021-11-23 02:02:47,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 271 transitions. [2021-11-23 02:02:47,518 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 271 transitions. Word has length 80 [2021-11-23 02:02:47,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:02:47,520 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 271 transitions. [2021-11-23 02:02:47,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-23 02:02:47,521 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 271 transitions. [2021-11-23 02:02:47,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-23 02:02:47,538 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:02:47,543 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:02:47,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:02:47,545 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:02:47,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:02:47,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1238501977, now seen corresponding path program 1 times [2021-11-23 02:02:47,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:02:47,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21096444] [2021-11-23 02:02:47,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:02:47,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:02:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:02:47,768 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-23 02:02:47,769 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:02:47,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21096444] [2021-11-23 02:02:47,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21096444] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:02:47,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:02:47,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:02:47,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446353599] [2021-11-23 02:02:47,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:02:47,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:02:47,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:02:47,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:02:47,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:02:47,777 INFO L87 Difference]: Start difference. First operand 202 states and 271 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-23 02:02:47,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:02:47,954 INFO L93 Difference]: Finished difference Result 323 states and 422 transitions. [2021-11-23 02:02:47,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:02:47,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 81 [2021-11-23 02:02:47,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:02:47,966 INFO L225 Difference]: With dead ends: 323 [2021-11-23 02:02:47,966 INFO L226 Difference]: Without dead ends: 204 [2021-11-23 02:02:47,973 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:02:47,975 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 0 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:02:47,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 467 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:02:47,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-11-23 02:02:48,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2021-11-23 02:02:48,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 119 states have (on average 1.2773109243697478) internal successors, (152), 122 states have internal predecessors, (152), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2021-11-23 02:02:48,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 273 transitions. [2021-11-23 02:02:48,013 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 273 transitions. Word has length 81 [2021-11-23 02:02:48,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:02:48,014 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 273 transitions. [2021-11-23 02:02:48,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-23 02:02:48,015 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 273 transitions. [2021-11-23 02:02:48,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-23 02:02:48,017 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:02:48,017 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:02:48,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:02:48,018 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:02:48,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:02:48,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1933579366, now seen corresponding path program 1 times [2021-11-23 02:02:48,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:02:48,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833797528] [2021-11-23 02:02:48,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:02:48,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:02:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:02:48,113 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-23 02:02:48,113 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:02:48,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833797528] [2021-11-23 02:02:48,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833797528] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:02:48,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:02:48,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:02:48,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542610601] [2021-11-23 02:02:48,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:02:48,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:02:48,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:02:48,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:02:48,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:02:48,117 INFO L87 Difference]: Start difference. First operand 204 states and 273 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-23 02:02:48,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:02:48,275 INFO L93 Difference]: Finished difference Result 438 states and 605 transitions. [2021-11-23 02:02:48,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:02:48,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 86 [2021-11-23 02:02:48,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:02:48,279 INFO L225 Difference]: With dead ends: 438 [2021-11-23 02:02:48,279 INFO L226 Difference]: Without dead ends: 252 [2021-11-23 02:02:48,280 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:02:48,282 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 57 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:02:48,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 486 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:02:48,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-11-23 02:02:48,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 247. [2021-11-23 02:02:48,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 151 states have (on average 1.3576158940397351) internal successors, (205), 154 states have internal predecessors, (205), 72 states have call successors, (72), 23 states have call predecessors, (72), 23 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2021-11-23 02:02:48,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 348 transitions. [2021-11-23 02:02:48,309 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 348 transitions. Word has length 86 [2021-11-23 02:02:48,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:02:48,310 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 348 transitions. [2021-11-23 02:02:48,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-23 02:02:48,310 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 348 transitions. [2021-11-23 02:02:48,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-23 02:02:48,313 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:02:48,313 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:02:48,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:02:48,314 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:02:48,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:02:48,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1100851635, now seen corresponding path program 1 times [2021-11-23 02:02:48,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:02:48,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735735698] [2021-11-23 02:02:48,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:02:48,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:02:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:02:48,465 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-23 02:02:48,465 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:02:48,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735735698] [2021-11-23 02:02:48,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735735698] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:02:48,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388848377] [2021-11-23 02:02:48,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:02:48,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:02:48,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3245554d-f926-43cb-8240-3679e86c1121/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:02:48,469 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3245554d-f926-43cb-8240-3679e86c1121/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:02:48,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3245554d-f926-43cb-8240-3679e86c1121/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:02:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:02:48,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 1103 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:02:48,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:02:49,064 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-23 02:02:49,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:02:49,357 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-23 02:02:49,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388848377] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:02:49,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [369832184] [2021-11-23 02:02:49,383 INFO L159 IcfgInterpreter]: Started Sifa with 72 locations of interest [2021-11-23 02:02:49,383 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:02:49,389 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:02:49,394 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:02:49,395 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:03:21,540 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2021-11-23 02:03:21,904 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 486 for LOIs [2021-11-23 02:03:52,194 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 454 for LOIs [2021-11-23 02:03:52,446 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2021-11-23 02:03:52,695 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 484 for LOIs [2021-11-23 02:04:20,367 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 442 for LOIs [2021-11-23 02:04:20,612 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 250 for LOIs [2021-11-23 02:04:20,709 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 248 for LOIs [2021-11-23 02:04:20,756 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 457 for LOIs [2021-11-23 02:04:21,340 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 252 for LOIs [2021-11-23 02:04:21,387 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:04:55,978 WARN L227 SmtUtils]: Spent 5.24s on a formula simplification. DAG size of input: 490 DAG size of output: 337 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:05:11,195 WARN L227 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 566 DAG size of output: 353 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:05:21,665 WARN L227 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 565 DAG size of output: 352 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:05:29,125 WARN L227 SmtUtils]: Spent 7.16s on a formula simplification. DAG size of input: 569 DAG size of output: 427 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:05:36,463 WARN L227 SmtUtils]: Spent 7.05s on a formula simplification. DAG size of input: 565 DAG size of output: 423 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:05:44,007 WARN L227 SmtUtils]: Spent 7.23s on a formula simplification. DAG size of input: 571 DAG size of output: 429 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:05:49,370 WARN L227 SmtUtils]: Spent 5.06s on a formula simplification. DAG size of input: 564 DAG size of output: 351 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:05:55,085 WARN L227 SmtUtils]: Spent 5.47s on a formula simplification. DAG size of input: 486 DAG size of output: 372 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:06:01,118 WARN L227 SmtUtils]: Spent 5.76s on a formula simplification. DAG size of input: 500 DAG size of output: 386 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:06:28,476 WARN L227 SmtUtils]: Spent 7.49s on a formula simplification. DAG size of input: 547 DAG size of output: 390 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:07:03,803 WARN L227 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 543 DAG size of output: 381 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:07:09,804 WARN L227 SmtUtils]: Spent 5.50s on a formula simplification. DAG size of input: 545 DAG size of output: 383 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:07:16,796 WARN L227 SmtUtils]: Spent 5.89s on a formula simplification. DAG size of input: 587 DAG size of output: 405 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:07:31,399 WARN L227 SmtUtils]: Spent 8.31s on a formula simplification. DAG size of input: 606 DAG size of output: 485 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:07:40,387 WARN L227 SmtUtils]: Spent 8.40s on a formula simplification. DAG size of input: 607 DAG size of output: 486 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:07:44,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [369832184] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:07:44,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:07:44,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [4, 4, 4] total 60 [2021-11-23 02:07:44,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281118836] [2021-11-23 02:07:44,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:07:44,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2021-11-23 02:07:44,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:07:44,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-11-23 02:07:44,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=3372, Unknown=0, NotChecked=0, Total=3540 [2021-11-23 02:07:44,415 INFO L87 Difference]: Start difference. First operand 247 states and 348 transitions. Second operand has 55 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 33 states have internal predecessors, (43), 17 states have call successors, (19), 11 states have call predecessors, (19), 9 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2021-11-23 02:08:43,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:43,173 INFO L93 Difference]: Finished difference Result 643 states and 957 transitions. [2021-11-23 02:08:43,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-23 02:08:43,175 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 33 states have internal predecessors, (43), 17 states have call successors, (19), 11 states have call predecessors, (19), 9 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) Word has length 87 [2021-11-23 02:08:43,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:43,180 INFO L225 Difference]: With dead ends: 643 [2021-11-23 02:08:43,180 INFO L226 Difference]: Without dead ends: 414 [2021-11-23 02:08:43,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 204 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1128 ImplicationChecksByTransitivity, 237.0s TimeCoverageRelationStatistics Valid=236, Invalid=4456, Unknown=0, NotChecked=0, Total=4692 [2021-11-23 02:08:43,186 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 248 mSDsluCounter, 7537 mSDsCounter, 0 mSdLazyCounter, 7539 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 7612 SdHoareTripleChecker+Invalid, 7578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 7539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:43,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 7612 Invalid, 7578 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [39 Valid, 7539 Invalid, 0 Unknown, 0 Unchecked, 24.2s Time] [2021-11-23 02:08:43,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-11-23 02:08:43,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 359. [2021-11-23 02:08:43,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 237 states have (on average 1.40084388185654) internal successors, (332), 241 states have internal predecessors, (332), 90 states have call successors, (90), 32 states have call predecessors, (90), 31 states have return successors, (90), 87 states have call predecessors, (90), 89 states have call successors, (90) [2021-11-23 02:08:43,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 512 transitions. [2021-11-23 02:08:43,360 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 512 transitions. Word has length 87 [2021-11-23 02:08:43,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:43,361 INFO L470 AbstractCegarLoop]: Abstraction has 359 states and 512 transitions. [2021-11-23 02:08:43,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 33 states have internal predecessors, (43), 17 states have call successors, (19), 11 states have call predecessors, (19), 9 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2021-11-23 02:08:43,362 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 512 transitions. [2021-11-23 02:08:43,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-23 02:08:43,365 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:43,365 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:08:43,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3245554d-f926-43cb-8240-3679e86c1121/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:08:43,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3245554d-f926-43cb-8240-3679e86c1121/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:08:43,591 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:08:43,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:43,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1234805997, now seen corresponding path program 1 times [2021-11-23 02:08:43,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:43,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461253639] [2021-11-23 02:08:43,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:43,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:43,680 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:08:43,681 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:43,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461253639] [2021-11-23 02:08:43,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461253639] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:08:43,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:08:43,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:08:43,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500129445] [2021-11-23 02:08:43,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:08:43,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:08:43,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:43,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:08:43,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:08:43,684 INFO L87 Difference]: Start difference. First operand 359 states and 512 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-23 02:08:43,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:43,967 INFO L93 Difference]: Finished difference Result 832 states and 1230 transitions. [2021-11-23 02:08:43,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:08:43,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 92 [2021-11-23 02:08:43,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:43,973 INFO L225 Difference]: With dead ends: 832 [2021-11-23 02:08:43,973 INFO L226 Difference]: Without dead ends: 499 [2021-11-23 02:08:43,975 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:08:43,976 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 55 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:43,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 487 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:08:43,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2021-11-23 02:08:44,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 492. [2021-11-23 02:08:44,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 345 states have (on average 1.4753623188405798) internal successors, (509), 349 states have internal predecessors, (509), 115 states have call successors, (115), 32 states have call predecessors, (115), 31 states have return successors, (115), 112 states have call predecessors, (115), 114 states have call successors, (115) [2021-11-23 02:08:44,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 739 transitions. [2021-11-23 02:08:44,154 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 739 transitions. Word has length 92 [2021-11-23 02:08:44,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:44,154 INFO L470 AbstractCegarLoop]: Abstraction has 492 states and 739 transitions. [2021-11-23 02:08:44,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-23 02:08:44,155 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 739 transitions. [2021-11-23 02:08:44,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-23 02:08:44,158 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:44,158 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:08:44,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:08:44,159 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:08:44,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:44,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1186984509, now seen corresponding path program 1 times [2021-11-23 02:08:44,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:44,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440416445] [2021-11-23 02:08:44,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:44,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:44,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:44,229 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:08:44,229 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:44,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440416445] [2021-11-23 02:08:44,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440416445] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:08:44,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868583111] [2021-11-23 02:08:44,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:44,230 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:08:44,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3245554d-f926-43cb-8240-3679e86c1121/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:08:44,232 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3245554d-f926-43cb-8240-3679e86c1121/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:08:44,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3245554d-f926-43cb-8240-3679e86c1121/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:08:44,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:44,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 1133 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:08:44,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:08:44,775 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:08:44,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:08:45,032 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:08:45,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868583111] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:08:45,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [441337096] [2021-11-23 02:08:45,038 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2021-11-23 02:08:45,038 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:08:45,039 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:08:45,039 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:08:45,039 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:09:18,424 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2021-11-23 02:09:18,684 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 269 for LOIs [2021-11-23 02:09:20,568 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2021-11-23 02:09:20,610 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2021-11-23 02:09:20,871 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 269 for LOIs [2021-11-23 02:09:41,106 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 229 for LOIs [2021-11-23 02:09:41,159 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 249 for LOIs [2021-11-23 02:09:41,235 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 429 for LOIs [2021-11-23 02:09:41,449 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 479 for LOIs [2021-11-23 02:09:42,973 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 251 for LOIs [2021-11-23 02:09:43,020 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:10:19,163 WARN L227 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 490 DAG size of output: 337 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:10:24,516 WARN L227 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 502 DAG size of output: 335 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:10:52,921 WARN L227 SmtUtils]: Spent 21.03s on a formula simplification. DAG size of input: 587 DAG size of output: 458 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:11:16,082 WARN L227 SmtUtils]: Spent 21.30s on a formula simplification. DAG size of input: 589 DAG size of output: 461 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:11:27,501 WARN L227 SmtUtils]: Spent 9.83s on a formula simplification. DAG size of input: 588 DAG size of output: 340 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:11:37,506 WARN L227 SmtUtils]: Spent 9.49s on a formula simplification. DAG size of input: 586 DAG size of output: 338 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:11:48,943 WARN L227 SmtUtils]: Spent 9.94s on a formula simplification. DAG size of input: 585 DAG size of output: 339 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:12:06,795 WARN L227 SmtUtils]: Spent 6.85s on a formula simplification. DAG size of input: 479 DAG size of output: 279 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:12:48,824 WARN L227 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 542 DAG size of output: 380 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:12:55,118 WARN L227 SmtUtils]: Spent 5.50s on a formula simplification. DAG size of input: 544 DAG size of output: 382 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:13:02,709 WARN L227 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 586 DAG size of output: 404 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:13:18,602 WARN L227 SmtUtils]: Spent 8.32s on a formula simplification. DAG size of input: 605 DAG size of output: 484 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:13:25,918 WARN L227 SmtUtils]: Spent 6.56s on a formula simplification. DAG size of input: 602 DAG size of output: 424 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:13:35,000 WARN L227 SmtUtils]: Spent 7.69s on a formula simplification. DAG size of input: 616 DAG size of output: 409 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:13:43,192 WARN L227 SmtUtils]: Spent 7.30s on a formula simplification. DAG size of input: 636 DAG size of output: 452 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:13:43,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [441337096] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:13:43,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:13:43,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [4, 4, 4] total 63 [2021-11-23 02:13:43,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033798771] [2021-11-23 02:13:43,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:13:43,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2021-11-23 02:13:43,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:13:43,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-11-23 02:13:43,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=3742, Unknown=0, NotChecked=0, Total=3906 [2021-11-23 02:13:43,199 INFO L87 Difference]: Start difference. First operand 492 states and 739 transitions. Second operand has 58 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 35 states have internal predecessors, (46), 18 states have call successors, (20), 11 states have call predecessors, (20), 9 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2021-11-23 02:14:02,000 WARN L227 SmtUtils]: Spent 16.17s on a formula simplification. DAG size of input: 565 DAG size of output: 453 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)