./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_23f44a22-b8fa-4793-b9c9-9aacd2951882/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f44a22-b8fa-4793-b9c9-9aacd2951882/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f44a22-b8fa-4793-b9c9-9aacd2951882/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f44a22-b8fa-4793-b9c9-9aacd2951882/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f44a22-b8fa-4793-b9c9-9aacd2951882/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f44a22-b8fa-4793-b9c9-9aacd2951882/bin/utaipan-6cKwYrpEi9 --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 f1b2e6fc3090957bb44fbf381fe29c5adbd1106bdb77e2b6b77c5e6e962ffc5b --- 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-6b4ec56 [2022-11-20 20:30:33,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:30:33,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:30:33,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:30:33,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:30:33,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:30:33,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:30:33,641 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:30:33,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:30:33,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:30:33,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:30:33,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:30:33,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:30:33,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:30:33,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:30:33,666 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:30:33,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:30:33,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:30:33,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:30:33,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:30:33,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:30:33,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:30:33,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:30:33,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:30:33,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:30:33,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:30:33,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:30:33,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:30:33,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:30:33,703 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:30:33,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:30:33,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:30:33,708 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:30:33,709 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:30:33,710 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:30:33,711 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:30:33,711 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:30:33,712 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:30:33,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:30:33,713 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:30:33,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:30:33,715 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f44a22-b8fa-4793-b9c9-9aacd2951882/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-20 20:30:33,757 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:30:33,760 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:30:33,761 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:30:33,761 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:30:33,762 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:30:33,762 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:30:33,763 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:30:33,763 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:30:33,763 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:30:33,764 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:30:33,765 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:30:33,765 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:30:33,766 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:30:33,766 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:30:33,766 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:30:33,767 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:30:33,767 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:30:33,767 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:30:33,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:30:33,768 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 20:30:33,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:30:33,769 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 20:30:33,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:30:33,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:30:33,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:30:33,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:30:33,770 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 20:30:33,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:30:33,771 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:30:33,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:30:33,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:30:33,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:30:33,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:30:33,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:30:33,773 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:30:33,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:30:33,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:30:33,774 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:30:33,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:30:33,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:30:33,775 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:30:33,775 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_23f44a22-b8fa-4793-b9c9-9aacd2951882/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f44a22-b8fa-4793-b9c9-9aacd2951882/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1b2e6fc3090957bb44fbf381fe29c5adbd1106bdb77e2b6b77c5e6e962ffc5b [2022-11-20 20:30:34,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:30:34,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:30:34,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:30:34,121 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:30:34,122 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:30:34,123 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f44a22-b8fa-4793-b9c9-9aacd2951882/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/product-lines/email_spec27_product29.cil.c [2022-11-20 20:30:37,551 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:30:38,036 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:30:38,037 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f44a22-b8fa-4793-b9c9-9aacd2951882/sv-benchmarks/c/product-lines/email_spec27_product29.cil.c [2022-11-20 20:30:38,079 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f44a22-b8fa-4793-b9c9-9aacd2951882/bin/utaipan-6cKwYrpEi9/data/00d43b48b/72cd9a13910642e9b5769b0b82b8bda1/FLAGcb1feacbc [2022-11-20 20:30:38,184 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f44a22-b8fa-4793-b9c9-9aacd2951882/bin/utaipan-6cKwYrpEi9/data/00d43b48b/72cd9a13910642e9b5769b0b82b8bda1 [2022-11-20 20:30:38,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:30:38,189 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:30:38,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:30:38,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:30:38,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:30:38,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:30:38" (1/1) ... [2022-11-20 20:30:38,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c72ba05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:38, skipping insertion in model container [2022-11-20 20:30:38,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:30:38" (1/1) ... [2022-11-20 20:30:38,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:30:38,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:30:38,747 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_23f44a22-b8fa-4793-b9c9-9aacd2951882/sv-benchmarks/c/product-lines/email_spec27_product29.cil.c[37973,37986] [2022-11-20 20:30:39,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:30:39,039 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:30:39,137 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_23f44a22-b8fa-4793-b9c9-9aacd2951882/sv-benchmarks/c/product-lines/email_spec27_product29.cil.c[37973,37986] [2022-11-20 20:30:39,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:30:39,254 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:30:39,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:39 WrapperNode [2022-11-20 20:30:39,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:30:39,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:30:39,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:30:39,257 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:30:39,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:39" (1/1) ... [2022-11-20 20:30:39,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:39" (1/1) ... [2022-11-20 20:30:39,359 INFO L138 Inliner]: procedures = 131, calls = 228, calls flagged for inlining = 54, calls inlined = 47, statements flattened = 930 [2022-11-20 20:30:39,360 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:30:39,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:30:39,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:30:39,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:30:39,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:39" (1/1) ... [2022-11-20 20:30:39,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:39" (1/1) ... [2022-11-20 20:30:39,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:39" (1/1) ... [2022-11-20 20:30:39,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:39" (1/1) ... [2022-11-20 20:30:39,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:39" (1/1) ... [2022-11-20 20:30:39,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:39" (1/1) ... [2022-11-20 20:30:39,419 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:39" (1/1) ... [2022-11-20 20:30:39,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:39" (1/1) ... [2022-11-20 20:30:39,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:30:39,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:30:39,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:30:39,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:30:39,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:39" (1/1) ... [2022-11-20 20:30:39,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:30:39,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f44a22-b8fa-4793-b9c9-9aacd2951882/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:30:39,469 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f44a22-b8fa-4793-b9c9-9aacd2951882/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:30:39,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f44a22-b8fa-4793-b9c9-9aacd2951882/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:30:39,512 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-20 20:30:39,512 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-20 20:30:39,512 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-20 20:30:39,512 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-20 20:30:39,512 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-20 20:30:39,513 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-20 20:30:39,513 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-20 20:30:39,513 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-20 20:30:39,513 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-20 20:30:39,513 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-20 20:30:39,513 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-20 20:30:39,513 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-20 20:30:39,513 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-20 20:30:39,514 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-20 20:30:39,514 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-20 20:30:39,514 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-20 20:30:39,514 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-20 20:30:39,514 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-20 20:30:39,514 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-20 20:30:39,514 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-20 20:30:39,514 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-20 20:30:39,515 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-20 20:30:39,515 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-20 20:30:39,515 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-20 20:30:39,515 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-20 20:30:39,515 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-20 20:30:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-20 20:30:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-20 20:30:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-20 20:30:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:30:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-20 20:30:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-20 20:30:39,517 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-20 20:30:39,517 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-20 20:30:39,517 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-20 20:30:39,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-20 20:30:39,517 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-20 20:30:39,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-20 20:30:39,518 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-20 20:30:39,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-20 20:30:39,518 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-20 20:30:39,518 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-20 20:30:39,519 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2022-11-20 20:30:39,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2022-11-20 20:30:39,519 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-11-20 20:30:39,519 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-11-20 20:30:39,520 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-20 20:30:39,520 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-20 20:30:39,520 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-20 20:30:39,520 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-20 20:30:39,520 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-20 20:30:39,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-20 20:30:39,521 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-20 20:30:39,521 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-20 20:30:39,521 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-20 20:30:39,521 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-20 20:30:39,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 20:30:39,522 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-20 20:30:39,522 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-20 20:30:39,522 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-20 20:30:39,522 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-20 20:30:39,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:30:39,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:30:39,788 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:30:39,791 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:30:40,893 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:30:41,715 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:30:41,716 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 20:30:41,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:30:41 BoogieIcfgContainer [2022-11-20 20:30:41,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:30:41,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:30:41,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:30:41,738 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:30:41,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:30:38" (1/3) ... [2022-11-20 20:30:41,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654e0189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:30:41, skipping insertion in model container [2022-11-20 20:30:41,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:39" (2/3) ... [2022-11-20 20:30:41,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654e0189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:30:41, skipping insertion in model container [2022-11-20 20:30:41,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:30:41" (3/3) ... [2022-11-20 20:30:41,750 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product29.cil.c [2022-11-20 20:30:41,776 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:30:41,777 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 20:30:41,866 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:30:41,877 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;@11aceaaa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:30:41,878 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 20:30:41,886 INFO L276 IsEmpty]: Start isEmpty. Operand has 217 states, 122 states have (on average 1.3032786885245902) internal successors, (159), 127 states have internal predecessors, (159), 64 states have call successors, (64), 29 states have call predecessors, (64), 29 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2022-11-20 20:30:41,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-20 20:30:41,921 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:30:41,923 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:30:41,923 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:30:41,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:30:41,933 INFO L85 PathProgramCache]: Analyzing trace with hash -561152339, now seen corresponding path program 1 times [2022-11-20 20:30:41,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:30:41,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501156759] [2022-11-20 20:30:41,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:30:41,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:30:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:30:42,578 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-20 20:30:42,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:30:42,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501156759] [2022-11-20 20:30:42,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501156759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:30:42,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:30:42,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:30:42,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800214912] [2022-11-20 20:30:42,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:30:42,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 20:30:42,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:30:42,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 20:30:42,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 20:30:42,653 INFO L87 Difference]: Start difference. First operand has 217 states, 122 states have (on average 1.3032786885245902) internal successors, (159), 127 states have internal predecessors, (159), 64 states have call successors, (64), 29 states have call predecessors, (64), 29 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 20:30:42,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:30:42,902 INFO L93 Difference]: Finished difference Result 342 states and 445 transitions. [2022-11-20 20:30:42,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 20:30:42,905 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 110 [2022-11-20 20:30:42,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:30:42,919 INFO L225 Difference]: With dead ends: 342 [2022-11-20 20:30:42,919 INFO L226 Difference]: Without dead ends: 214 [2022-11-20 20:30:42,924 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 [2022-11-20 20:30:42,928 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:30:42,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 245 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:30:42,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-11-20 20:30:42,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2022-11-20 20:30:42,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 120 states have (on average 1.275) internal successors, (153), 124 states have internal predecessors, (153), 64 states have call successors, (64), 29 states have call predecessors, (64), 29 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2022-11-20 20:30:42,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 280 transitions. [2022-11-20 20:30:42,998 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 280 transitions. Word has length 110 [2022-11-20 20:30:42,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:30:43,000 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 280 transitions. [2022-11-20 20:30:43,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 20:30:43,000 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 280 transitions. [2022-11-20 20:30:43,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-20 20:30:43,005 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:30:43,005 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:30:43,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 20:30:43,006 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:30:43,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:30:43,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1368091390, now seen corresponding path program 1 times [2022-11-20 20:30:43,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:30:43,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142362438] [2022-11-20 20:30:43,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:30:43,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:30:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:30:43,362 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-20 20:30:43,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:30:43,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142362438] [2022-11-20 20:30:43,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142362438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:30:43,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:30:43,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:30:43,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792409776] [2022-11-20 20:30:43,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:30:43,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:30:43,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:30:43,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:30:43,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:30:43,368 INFO L87 Difference]: Start difference. First operand 214 states and 280 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 20:30:43,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:30:43,518 INFO L93 Difference]: Finished difference Result 338 states and 430 transitions. [2022-11-20 20:30:43,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:30:43,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 111 [2022-11-20 20:30:43,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:30:43,522 INFO L225 Difference]: With dead ends: 338 [2022-11-20 20:30:43,523 INFO L226 Difference]: Without dead ends: 216 [2022-11-20 20:30:43,525 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 [2022-11-20 20:30:43,527 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 0 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:30:43,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 483 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:30:43,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-11-20 20:30:43,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2022-11-20 20:30:43,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 122 states have (on average 1.2704918032786885) internal successors, (155), 126 states have internal predecessors, (155), 64 states have call successors, (64), 29 states have call predecessors, (64), 29 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2022-11-20 20:30:43,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 282 transitions. [2022-11-20 20:30:43,559 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 282 transitions. Word has length 111 [2022-11-20 20:30:43,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:30:43,560 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 282 transitions. [2022-11-20 20:30:43,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 20:30:43,561 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 282 transitions. [2022-11-20 20:30:43,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-20 20:30:43,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:30:43,565 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:30:43,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 20:30:43,566 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:30:43,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:30:43,567 INFO L85 PathProgramCache]: Analyzing trace with hash 859589149, now seen corresponding path program 1 times [2022-11-20 20:30:43,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:30:43,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726617536] [2022-11-20 20:30:43,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:30:43,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:30:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:30:43,722 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-20 20:30:43,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:30:43,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726617536] [2022-11-20 20:30:43,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726617536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:30:43,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:30:43,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:30:43,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604928570] [2022-11-20 20:30:43,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:30:43,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:30:43,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:30:43,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:30:43,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:30:43,726 INFO L87 Difference]: Start difference. First operand 216 states and 282 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 20:30:43,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:30:43,923 INFO L93 Difference]: Finished difference Result 467 states and 631 transitions. [2022-11-20 20:30:43,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:30:43,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 116 [2022-11-20 20:30:43,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:30:43,927 INFO L225 Difference]: With dead ends: 467 [2022-11-20 20:30:43,927 INFO L226 Difference]: Without dead ends: 269 [2022-11-20 20:30:43,929 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 [2022-11-20 20:30:43,930 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 59 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:30:43,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 494 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:30:43,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-11-20 20:30:43,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 264. [2022-11-20 20:30:43,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 156 states have (on average 1.3461538461538463) internal successors, (210), 160 states have internal predecessors, (210), 78 states have call successors, (78), 29 states have call predecessors, (78), 29 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2022-11-20 20:30:43,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 365 transitions. [2022-11-20 20:30:43,959 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 365 transitions. Word has length 116 [2022-11-20 20:30:43,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:30:43,960 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 365 transitions. [2022-11-20 20:30:43,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 20:30:43,961 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 365 transitions. [2022-11-20 20:30:43,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-20 20:30:43,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:30:43,964 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:30:43,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 20:30:43,964 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:30:43,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:30:43,965 INFO L85 PathProgramCache]: Analyzing trace with hash 443476845, now seen corresponding path program 1 times [2022-11-20 20:30:43,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:30:43,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455877274] [2022-11-20 20:30:43,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:30:43,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:30:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:30:44,186 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 20:30:44,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:30:44,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455877274] [2022-11-20 20:30:44,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455877274] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:30:44,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536952833] [2022-11-20 20:30:44,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:30:44,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:30:44,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f44a22-b8fa-4793-b9c9-9aacd2951882/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:30:44,192 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f44a22-b8fa-4793-b9c9-9aacd2951882/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:30:44,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f44a22-b8fa-4793-b9c9-9aacd2951882/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 20:30:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:30:44,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 1163 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:30:44,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:30:44,843 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 20:30:44,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:30:44,988 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 20:30:44,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536952833] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:30:44,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [859011741] [2022-11-20 20:30:45,018 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2022-11-20 20:30:45,019 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:30:45,023 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:30:45,029 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:30:45,030 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:31:14,741 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-20 20:31:15,116 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 258 for LOIs [2022-11-20 20:31:17,384 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 234 for LOIs [2022-11-20 20:31:17,462 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-20 20:31:17,939 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 260 for LOIs [2022-11-20 20:31:21,663 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 260 for LOIs [2022-11-20 20:31:35,595 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 245 for LOIs [2022-11-20 20:31:36,471 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 245 for LOIs [2022-11-20 20:31:36,513 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 455 for LOIs [2022-11-20 20:31:37,150 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 243 for LOIs [2022-11-20 20:31:37,223 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 437 for LOIs [2022-11-20 20:31:37,860 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 481 for LOIs [2022-11-20 20:31:41,285 INFO L197 IcfgInterpreter]: Interpreting procedure isVerified with input of size 245 for LOIs [2022-11-20 20:31:41,337 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 248 for LOIs [2022-11-20 20:31:41,384 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:31:55,540 WARN L233 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 444 DAG size of output: 244 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:32:01,217 WARN L233 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:32:15,625 WARN L233 SmtUtils]: Spent 5.41s on a formula simplification. DAG size of input: 464 DAG size of output: 283 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:32:21,338 WARN L233 SmtUtils]: Spent 5.53s on a formula simplification. DAG size of input: 476 DAG size of output: 309 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:32:32,198 WARN L233 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 498 DAG size of output: 307 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:32:38,894 WARN L233 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 508 DAG size of output: 287 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:33:00,811 WARN L233 SmtUtils]: Spent 21.54s on a formula simplification. DAG size of input: 577 DAG size of output: 448 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:33:12,462 WARN L233 SmtUtils]: Spent 11.24s on a formula simplification. DAG size of input: 579 DAG size of output: 329 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:33:34,501 WARN L233 SmtUtils]: Spent 13.95s on a formula simplification. DAG size of input: 476 DAG size of output: 364 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:33:59,687 WARN L233 SmtUtils]: Spent 6.05s on a formula simplification. DAG size of input: 455 DAG size of output: 260 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:34:06,565 WARN L233 SmtUtils]: Spent 6.24s on a formula simplification. DAG size of input: 481 DAG size of output: 276 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:34:31,331 WARN L233 SmtUtils]: Spent 11.75s on a formula simplification. DAG size of input: 437 DAG size of output: 341 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:34:43,858 WARN L233 SmtUtils]: Spent 11.84s on a formula simplification. DAG size of input: 456 DAG size of output: 349 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:34:50,491 WARN L233 SmtUtils]: Spent 6.04s on a formula simplification. DAG size of input: 461 DAG size of output: 348 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:35:52,408 WARN L233 SmtUtils]: Spent 12.68s on a formula simplification. DAG size of input: 580 DAG size of output: 378 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:36:01,725 WARN L233 SmtUtils]: Spent 8.34s on a formula simplification. DAG size of input: 577 DAG size of output: 388 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:36:20,945 WARN L233 SmtUtils]: Spent 5.91s on a formula simplification. DAG size of input: 613 DAG size of output: 420 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:36:27,971 WARN L233 SmtUtils]: Spent 5.91s on a formula simplification. DAG size of input: 613 DAG size of output: 420 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:36:27,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [859011741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:36:27,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-20 20:36:27,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [72] imperfect sequences [4, 4, 4] total 78 [2022-11-20 20:36:27,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530412110] [2022-11-20 20:36:27,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:36:27,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2022-11-20 20:36:27,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:36:27,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2022-11-20 20:36:27,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=5745, Unknown=0, NotChecked=0, Total=6006 [2022-11-20 20:36:27,982 INFO L87 Difference]: Start difference. First operand 264 states and 365 transitions. Second operand has 73 states, 47 states have (on average 1.148936170212766) internal successors, (54), 44 states have internal predecessors, (54), 22 states have call successors, (23), 15 states have call predecessors, (23), 12 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2022-11-20 20:36:43,848 WARN L233 SmtUtils]: Spent 9.55s on a formula simplification. DAG size of input: 573 DAG size of output: 419 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:36:55,353 WARN L233 SmtUtils]: Spent 9.34s on a formula simplification. DAG size of input: 580 DAG size of output: 422 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:38:05,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:38:05,552 INFO L93 Difference]: Finished difference Result 732 states and 1066 transitions. [2022-11-20 20:38:05,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-11-20 20:38:05,553 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 47 states have (on average 1.148936170212766) internal successors, (54), 44 states have internal predecessors, (54), 22 states have call successors, (23), 15 states have call predecessors, (23), 12 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) Word has length 106 [2022-11-20 20:38:05,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:38:05,558 INFO L225 Difference]: With dead ends: 732 [2022-11-20 20:38:05,558 INFO L226 Difference]: Without dead ends: 486 [2022-11-20 20:38:05,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 241 SyntacticMatches, 3 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1830 ImplicationChecksByTransitivity, 324.7s TimeCoverageRelationStatistics Valid=318, Invalid=7164, Unknown=0, NotChecked=0, Total=7482 [2022-11-20 20:38:05,563 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 240 mSDsluCounter, 9945 mSDsCounter, 0 mSdLazyCounter, 14410 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 10260 SdHoareTripleChecker+Invalid, 14440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.6s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 14410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:38:05,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 10260 Invalid, 14440 Unknown, 0 Unchecked, 0.6s Time], IncrementalHoareTripleChecker [30 Valid, 14410 Invalid, 0 Unknown, 0 Unchecked, 58.2s Time] [2022-11-20 20:38:05,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2022-11-20 20:38:05,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 400. [2022-11-20 20:38:05,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 256 states have (on average 1.37890625) internal successors, (353), 261 states have internal predecessors, (353), 103 states have call successors, (103), 42 states have call predecessors, (103), 40 states have return successors, (103), 98 states have call predecessors, (103), 102 states have call successors, (103) [2022-11-20 20:38:05,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 559 transitions. [2022-11-20 20:38:05,737 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 559 transitions. Word has length 106 [2022-11-20 20:38:05,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:38:05,738 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 559 transitions. [2022-11-20 20:38:05,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 47 states have (on average 1.148936170212766) internal successors, (54), 44 states have internal predecessors, (54), 22 states have call successors, (23), 15 states have call predecessors, (23), 12 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2022-11-20 20:38:05,738 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 559 transitions. [2022-11-20 20:38:05,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-20 20:38:05,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:38:05,741 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:38:05,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f44a22-b8fa-4793-b9c9-9aacd2951882/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-20 20:38:05,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f44a22-b8fa-4793-b9c9-9aacd2951882/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:38:05,951 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:38:05,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:38:05,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1628290052, now seen corresponding path program 1 times [2022-11-20 20:38:05,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:38:05,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970326313] [2022-11-20 20:38:05,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:38:05,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:38:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:38:06,155 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 20:38:06,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:38:06,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970326313] [2022-11-20 20:38:06,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970326313] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:38:06,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359469123] [2022-11-20 20:38:06,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:38:06,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:38:06,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f44a22-b8fa-4793-b9c9-9aacd2951882/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:38:06,158 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f44a22-b8fa-4793-b9c9-9aacd2951882/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:38:06,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f44a22-b8fa-4793-b9c9-9aacd2951882/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 20:38:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:38:06,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 1177 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:38:06,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:38:06,559 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 20:38:06,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:38:06,646 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 20:38:06,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359469123] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:38:06,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [252448387] [2022-11-20 20:38:06,654 INFO L159 IcfgInterpreter]: Started Sifa with 92 locations of interest [2022-11-20 20:38:06,654 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:38:06,655 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:38:06,655 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:38:06,655 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:38:29,410 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-20 20:38:29,701 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 258 for LOIs [2022-11-20 20:38:31,321 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 234 for LOIs [2022-11-20 20:38:31,357 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-20 20:38:31,644 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 258 for LOIs [2022-11-20 20:38:34,423 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 260 for LOIs [2022-11-20 20:38:54,675 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 435 for LOIs [2022-11-20 20:38:56,925 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 455 for LOIs [2022-11-20 20:38:57,579 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 243 for LOIs [2022-11-20 20:38:57,666 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 437 for LOIs [2022-11-20 20:38:58,293 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 481 for LOIs [2022-11-20 20:39:00,225 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 245 for LOIs [2022-11-20 20:39:00,266 INFO L197 IcfgInterpreter]: Interpreting procedure isVerified with input of size 245 for LOIs [2022-11-20 20:39:00,306 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 248 for LOIs [2022-11-20 20:39:00,350 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:39:33,784 WARN L233 SmtUtils]: Spent 5.21s on a formula simplification. DAG size of input: 476 DAG size of output: 309 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:40:10,059 WARN L233 SmtUtils]: Spent 19.85s on a formula simplification. DAG size of input: 577 DAG size of output: 448 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:40:20,895 WARN L233 SmtUtils]: Spent 10.47s on a formula simplification. DAG size of input: 579 DAG size of output: 329 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:40:41,060 WARN L233 SmtUtils]: Spent 12.95s on a formula simplification. DAG size of input: 476 DAG size of output: 364 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:41:03,609 WARN L233 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 455 DAG size of output: 260 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:41:09,635 WARN L233 SmtUtils]: Spent 5.54s on a formula simplification. DAG size of input: 481 DAG size of output: 276 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:41:33,698 WARN L233 SmtUtils]: Spent 11.60s on a formula simplification. DAG size of input: 437 DAG size of output: 341 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:41:45,993 WARN L233 SmtUtils]: Spent 11.67s on a formula simplification. DAG size of input: 456 DAG size of output: 349 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:41:52,504 WARN L233 SmtUtils]: Spent 5.95s on a formula simplification. DAG size of input: 461 DAG size of output: 348 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:42:35,186 WARN L233 SmtUtils]: Spent 7.39s on a formula simplification. DAG size of input: 550 DAG size of output: 358 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:42:41,570 WARN L233 SmtUtils]: Spent 5.52s on a formula simplification. DAG size of input: 550 DAG size of output: 367 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:42:50,622 WARN L233 SmtUtils]: Spent 7.32s on a formula simplification. DAG size of input: 564 DAG size of output: 411 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:43:14,433 WARN L233 SmtUtils]: Spent 8.91s on a formula simplification. DAG size of input: 573 DAG size of output: 417 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:43:23,705 WARN L233 SmtUtils]: Spent 8.33s on a formula simplification. DAG size of input: 573 DAG size of output: 407 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:43:42,353 WARN L233 SmtUtils]: Spent 9.16s on a formula simplification. DAG size of input: 618 DAG size of output: 467 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:43:45,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [252448387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:43:45,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-20 20:43:45,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [74] imperfect sequences [4, 4, 4] total 80 [2022-11-20 20:43:45,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842828010] [2022-11-20 20:43:45,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:43:45,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2022-11-20 20:43:45,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:43:45,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2022-11-20 20:43:45,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=6062, Unknown=0, NotChecked=0, Total=6320 [2022-11-20 20:43:45,495 INFO L87 Difference]: Start difference. First operand 400 states and 559 transitions. Second operand has 75 states, 48 states have (on average 1.1666666666666667) internal successors, (56), 45 states have internal predecessors, (56), 23 states have call successors, (24), 15 states have call predecessors, (24), 12 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2022-11-20 20:44:00,581 WARN L233 SmtUtils]: Spent 9.42s on a formula simplification. DAG size of input: 573 DAG size of output: 419 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)