./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product32.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_28d6ff0f-2f95-4ee3-bddd-3579158417bc/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/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_28d6ff0f-2f95-4ee3-bddd-3579158417bc/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/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_28d6ff0f-2f95-4ee3-bddd-3579158417bc/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 6b54f48e5606af61de5b12570bc2e15a173e4036917e2e3bdec28cef1386724b --- 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 20:00:34,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:00:34,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:00:34,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:00:34,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:00:34,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:00:34,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:00:34,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:00:34,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:00:34,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:00:34,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:00:34,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:00:34,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:00:34,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:00:34,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:00:35,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:00:35,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:00:35,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:00:35,011 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:00:35,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:00:35,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:00:35,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:00:35,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:00:35,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:00:35,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:00:35,045 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:00:35,045 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:00:35,047 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:00:35,048 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:00:35,050 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:00:35,052 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:00:35,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:00:35,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:00:35,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:00:35,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:00:35,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:00:35,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:00:35,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:00:35,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:00:35,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:00:35,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:00:35,068 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-20 20:00:35,118 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:00:35,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:00:35,119 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:00:35,120 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:00:35,121 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:00:35,121 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:00:35,122 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:00:35,122 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:00:35,122 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:00:35,123 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:00:35,124 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:00:35,124 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:00:35,125 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:00:35,125 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:00:35,125 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:00:35,126 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:00:35,126 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:00:35,126 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:00:35,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:00:35,128 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 20:00:35,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:00:35,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 20:00:35,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:00:35,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:00:35,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:00:35,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:00:35,130 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 20:00:35,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:00:35,131 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:00:35,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:00:35,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:00:35,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:00:35,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:00:35,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:00:35,133 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:00:35,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:00:35,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:00:35,134 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:00:35,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:00:35,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:00:35,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:00:35,135 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_28d6ff0f-2f95-4ee3-bddd-3579158417bc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b54f48e5606af61de5b12570bc2e15a173e4036917e2e3bdec28cef1386724b [2022-11-20 20:00:35,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:00:35,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:00:35,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:00:35,547 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:00:35,548 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:00:35,549 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/product-lines/email_spec27_product32.cil.c [2022-11-20 20:00:39,211 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:00:39,785 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:00:39,786 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/sv-benchmarks/c/product-lines/email_spec27_product32.cil.c [2022-11-20 20:00:39,810 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/bin/utaipan-6cKwYrpEi9/data/71b88e605/f017cf96fb874e0a9286ca769ef92eac/FLAG58e4843f3 [2022-11-20 20:00:39,837 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/bin/utaipan-6cKwYrpEi9/data/71b88e605/f017cf96fb874e0a9286ca769ef92eac [2022-11-20 20:00:39,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:00:39,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:00:39,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:00:39,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:00:39,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:00:39,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:00:39" (1/1) ... [2022-11-20 20:00:39,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38311683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:00:39, skipping insertion in model container [2022-11-20 20:00:39,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:00:39" (1/1) ... [2022-11-20 20:00:39,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:00:39,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:00:40,480 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_28d6ff0f-2f95-4ee3-bddd-3579158417bc/sv-benchmarks/c/product-lines/email_spec27_product32.cil.c[27975,27988] [2022-11-20 20:00:40,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:00:40,937 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:00:41,021 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_28d6ff0f-2f95-4ee3-bddd-3579158417bc/sv-benchmarks/c/product-lines/email_spec27_product32.cil.c[27975,27988] [2022-11-20 20:00:41,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:00:41,156 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:00:41,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:00:41 WrapperNode [2022-11-20 20:00:41,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:00:41,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:00:41,159 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:00:41,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:00:41,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:00:41" (1/1) ... [2022-11-20 20:00:41,213 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:00:41" (1/1) ... [2022-11-20 20:00:41,323 INFO L138 Inliner]: procedures = 134, calls = 238, calls flagged for inlining = 60, calls inlined = 53, statements flattened = 994 [2022-11-20 20:00:41,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:00:41,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:00:41,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:00:41,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:00:41,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:00:41" (1/1) ... [2022-11-20 20:00:41,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:00:41" (1/1) ... [2022-11-20 20:00:41,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:00:41" (1/1) ... [2022-11-20 20:00:41,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:00:41" (1/1) ... [2022-11-20 20:00:41,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:00:41" (1/1) ... [2022-11-20 20:00:41,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:00:41" (1/1) ... [2022-11-20 20:00:41,385 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:00:41" (1/1) ... [2022-11-20 20:00:41,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:00:41" (1/1) ... [2022-11-20 20:00:41,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:00:41,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:00:41,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:00:41,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:00:41,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:00:41" (1/1) ... [2022-11-20 20:00:41,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:00:41,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:00:41,443 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:00:41,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:00:41,499 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-20 20:00:41,500 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-20 20:00:41,500 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-20 20:00:41,500 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-20 20:00:41,500 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-20 20:00:41,500 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-20 20:00:41,501 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-20 20:00:41,501 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-20 20:00:41,501 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-20 20:00:41,501 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-20 20:00:41,501 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-20 20:00:41,502 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-20 20:00:41,502 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-20 20:00:41,502 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-20 20:00:41,503 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-20 20:00:41,503 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-20 20:00:41,503 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-20 20:00:41,503 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-20 20:00:41,503 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-20 20:00:41,504 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-20 20:00:41,504 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-20 20:00:41,504 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-20 20:00:41,505 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-20 20:00:41,506 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-20 20:00:41,506 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-20 20:00:41,507 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-20 20:00:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-20 20:00:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-20 20:00:41,508 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-20 20:00:41,508 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-20 20:00:41,510 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-20 20:00:41,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:00:41,510 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-20 20:00:41,510 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-20 20:00:41,511 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-20 20:00:41,511 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-20 20:00:41,511 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-20 20:00:41,512 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-20 20:00:41,512 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-20 20:00:41,512 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-20 20:00:41,512 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-20 20:00:41,512 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-20 20:00:41,513 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-20 20:00:41,513 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-20 20:00:41,513 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2022-11-20 20:00:41,513 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2022-11-20 20:00:41,514 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-20 20:00:41,515 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-20 20:00:41,515 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-20 20:00:41,515 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-20 20:00:41,515 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-20 20:00:41,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-20 20:00:41,516 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-20 20:00:41,516 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-20 20:00:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-20 20:00:41,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-20 20:00:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 20:00:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-20 20:00:41,517 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-20 20:00:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-20 20:00:41,518 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-20 20:00:41,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:00:41,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:00:41,800 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:00:41,811 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:00:43,011 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:00:43,857 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:00:43,857 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 20:00:43,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:00:43 BoogieIcfgContainer [2022-11-20 20:00:43,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:00:43,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:00:43,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:00:43,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:00:43,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:00:39" (1/3) ... [2022-11-20 20:00:43,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7859170a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:00:43, skipping insertion in model container [2022-11-20 20:00:43,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:00:41" (2/3) ... [2022-11-20 20:00:43,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7859170a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:00:43, skipping insertion in model container [2022-11-20 20:00:43,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:00:43" (3/3) ... [2022-11-20 20:00:43,879 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product32.cil.c [2022-11-20 20:00:43,904 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:00:43,905 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 20:00:43,989 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:00:43,998 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;@61f359a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:00:43,998 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 20:00:44,005 INFO L276 IsEmpty]: Start isEmpty. Operand has 223 states, 126 states have (on average 1.3015873015873016) internal successors, (164), 131 states have internal predecessors, (164), 66 states have call successors, (66), 29 states have call predecessors, (66), 29 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2022-11-20 20:00:44,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-20 20:00:44,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:00:44,039 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:00:44,040 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:00:44,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:00:44,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1988615148, now seen corresponding path program 1 times [2022-11-20 20:00:44,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:00:44,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981462488] [2022-11-20 20:00:44,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:00:44,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:00:44,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:00:44,747 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 20:00:44,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:00:44,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981462488] [2022-11-20 20:00:44,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981462488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:00:44,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:00:44,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:00:44,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385908998] [2022-11-20 20:00:44,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:00:44,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 20:00:44,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:00:44,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 20:00:44,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 20:00:44,826 INFO L87 Difference]: Start difference. First operand has 223 states, 126 states have (on average 1.3015873015873016) internal successors, (164), 131 states have internal predecessors, (164), 66 states have call successors, (66), 29 states have call predecessors, (66), 29 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 20:00:45,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:00:45,088 INFO L93 Difference]: Finished difference Result 354 states and 463 transitions. [2022-11-20 20:00:45,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 20:00:45,098 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 99 [2022-11-20 20:00:45,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:00:45,124 INFO L225 Difference]: With dead ends: 354 [2022-11-20 20:00:45,124 INFO L226 Difference]: Without dead ends: 220 [2022-11-20 20:00:45,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 20:00:45,141 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:00:45,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 251 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:00:45,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-20 20:00:45,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2022-11-20 20:00:45,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 124 states have (on average 1.2741935483870968) internal successors, (158), 128 states have internal predecessors, (158), 66 states have call successors, (66), 29 states have call predecessors, (66), 29 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-11-20 20:00:45,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 289 transitions. [2022-11-20 20:00:45,222 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 289 transitions. Word has length 99 [2022-11-20 20:00:45,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:00:45,224 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 289 transitions. [2022-11-20 20:00:45,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 20:00:45,225 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 289 transitions. [2022-11-20 20:00:45,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-20 20:00:45,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:00:45,232 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:00:45,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 20:00:45,233 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:00:45,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:00:45,234 INFO L85 PathProgramCache]: Analyzing trace with hash 567149928, now seen corresponding path program 1 times [2022-11-20 20:00:45,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:00:45,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170554519] [2022-11-20 20:00:45,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:00:45,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:00:45,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:00:45,629 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 20:00:45,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:00:45,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170554519] [2022-11-20 20:00:45,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170554519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:00:45,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:00:45,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:00:45,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153487913] [2022-11-20 20:00:45,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:00:45,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:00:45,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:00:45,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:00:45,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:00:45,634 INFO L87 Difference]: Start difference. First operand 220 states and 289 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 20:00:45,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:00:45,860 INFO L93 Difference]: Finished difference Result 350 states and 448 transitions. [2022-11-20 20:00:45,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:00:45,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 100 [2022-11-20 20:00:45,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:00:45,864 INFO L225 Difference]: With dead ends: 350 [2022-11-20 20:00:45,864 INFO L226 Difference]: Without dead ends: 222 [2022-11-20 20:00:45,866 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 20:00:45,868 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 0 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:00:45,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 495 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:00:45,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-11-20 20:00:45,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2022-11-20 20:00:45,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 126 states have (on average 1.2698412698412698) internal successors, (160), 130 states have internal predecessors, (160), 66 states have call successors, (66), 29 states have call predecessors, (66), 29 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-11-20 20:00:45,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 291 transitions. [2022-11-20 20:00:45,896 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 291 transitions. Word has length 100 [2022-11-20 20:00:45,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:00:45,897 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 291 transitions. [2022-11-20 20:00:45,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 20:00:45,898 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 291 transitions. [2022-11-20 20:00:45,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-20 20:00:45,902 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:00:45,903 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] [2022-11-20 20:00:45,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 20:00:45,903 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:00:45,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:00:45,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1728211291, now seen corresponding path program 1 times [2022-11-20 20:00:45,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:00:45,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745109434] [2022-11-20 20:00:45,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:00:45,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:00:45,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:00:46,144 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 20:00:46,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:00:46,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745109434] [2022-11-20 20:00:46,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745109434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:00:46,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:00:46,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:00:46,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901694732] [2022-11-20 20:00:46,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:00:46,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:00:46,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:00:46,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:00:46,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:00:46,153 INFO L87 Difference]: Start difference. First operand 222 states and 291 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 20:00:46,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:00:46,376 INFO L93 Difference]: Finished difference Result 479 states and 649 transitions. [2022-11-20 20:00:46,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:00:46,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 105 [2022-11-20 20:00:46,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:00:46,379 INFO L225 Difference]: With dead ends: 479 [2022-11-20 20:00:46,390 INFO L226 Difference]: Without dead ends: 275 [2022-11-20 20:00:46,392 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 20:00:46,394 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 59 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:00:46,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 516 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:00:46,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-11-20 20:00:46,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 270. [2022-11-20 20:00:46,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 160 states have (on average 1.34375) internal successors, (215), 164 states have internal predecessors, (215), 80 states have call successors, (80), 29 states have call predecessors, (80), 29 states have return successors, (79), 78 states have call predecessors, (79), 79 states have call successors, (79) [2022-11-20 20:00:46,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 374 transitions. [2022-11-20 20:00:46,448 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 374 transitions. Word has length 105 [2022-11-20 20:00:46,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:00:46,451 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 374 transitions. [2022-11-20 20:00:46,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 20:00:46,452 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 374 transitions. [2022-11-20 20:00:46,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-20 20:00:46,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:00:46,465 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, 1] [2022-11-20 20:00:46,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 20:00:46,465 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:00:46,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:00:46,466 INFO L85 PathProgramCache]: Analyzing trace with hash 602295634, now seen corresponding path program 1 times [2022-11-20 20:00:46,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:00:46,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587105133] [2022-11-20 20:00:46,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:00:46,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:00:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:00:46,869 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-20 20:00:46,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:00:46,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587105133] [2022-11-20 20:00:46,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587105133] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:00:46,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400490636] [2022-11-20 20:00:46,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:00:46,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:00:46,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:00:46,881 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:00:46,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 20:00:47,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:00:47,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 1291 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:00:47,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:00:47,575 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-20 20:00:47,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:00:47,713 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-20 20:00:47,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400490636] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:00:47,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [960637709] [2022-11-20 20:00:47,746 INFO L159 IcfgInterpreter]: Started Sifa with 96 locations of interest [2022-11-20 20:00:47,747 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:00:47,757 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:00:47,765 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:00:47,765 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:01:31,448 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-20 20:01:31,763 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 267 for LOIs [2022-11-20 20:01:34,202 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-20 20:01:34,536 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 269 for LOIs [2022-11-20 20:01:38,676 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-11-20 20:01:38,714 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 229 for LOIs [2022-11-20 20:01:38,766 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 237 for LOIs [2022-11-20 20:01:38,803 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 254 for LOIs [2022-11-20 20:01:38,858 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:02:10,546 WARN L233 SmtUtils]: Spent 5.78s on a formula simplification. DAG size of input: 464 DAG size of output: 292 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:02:18,198 WARN L233 SmtUtils]: Spent 7.47s on a formula simplification. DAG size of input: 476 DAG size of output: 352 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:02:30,139 WARN L233 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 498 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:02:38,458 WARN L233 SmtUtils]: Spent 7.02s on a formula simplification. DAG size of input: 508 DAG size of output: 337 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:02:47,807 WARN L233 SmtUtils]: Spent 7.61s on a formula simplification. DAG size of input: 555 DAG size of output: 367 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:02:55,575 WARN L233 SmtUtils]: Spent 7.41s on a formula simplification. DAG size of input: 559 DAG size of output: 372 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:03:03,455 WARN L233 SmtUtils]: Spent 7.52s on a formula simplification. DAG size of input: 555 DAG size of output: 368 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:03:11,212 WARN L233 SmtUtils]: Spent 7.39s on a formula simplification. DAG size of input: 561 DAG size of output: 374 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:03:53,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [960637709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:03:53,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-20 20:03:53,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [4, 4, 4] total 46 [2022-11-20 20:03:53,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988105376] [2022-11-20 20:03:53,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:03:53,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-20 20:03:53,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:03:53,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-20 20:03:53,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1953, Unknown=0, NotChecked=0, Total=2070 [2022-11-20 20:03:53,248 INFO L87 Difference]: Start difference. First operand 270 states and 374 transitions. Second operand has 41 states, 27 states have (on average 2.111111111111111) internal successors, (57), 25 states have internal predecessors, (57), 13 states have call successors, (26), 9 states have call predecessors, (26), 7 states have return successors, (23), 11 states have call predecessors, (23), 11 states have call successors, (23) [2022-11-20 20:05:16,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:05:16,216 INFO L93 Difference]: Finished difference Result 705 states and 1067 transitions. [2022-11-20 20:05:16,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-20 20:05:16,217 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 27 states have (on average 2.111111111111111) internal successors, (57), 25 states have internal predecessors, (57), 13 states have call successors, (26), 9 states have call predecessors, (26), 7 states have return successors, (23), 11 states have call predecessors, (23), 11 states have call successors, (23) Word has length 117 [2022-11-20 20:05:16,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:05:16,220 INFO L225 Difference]: With dead ends: 705 [2022-11-20 20:05:16,220 INFO L226 Difference]: Without dead ends: 453 [2022-11-20 20:05:16,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 184.9s TimeCoverageRelationStatistics Valid=201, Invalid=2991, Unknown=0, NotChecked=0, Total=3192 [2022-11-20 20:05:16,224 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 411 mSDsluCounter, 6166 mSDsCounter, 0 mSdLazyCounter, 6732 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 6481 SdHoareTripleChecker+Invalid, 6767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 6732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.7s IncrementalHoareTripleChecker+Time [2022-11-20 20:05:16,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 6481 Invalid, 6767 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [35 Valid, 6732 Invalid, 0 Unknown, 0 Unchecked, 31.7s Time] [2022-11-20 20:05:16,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-11-20 20:05:16,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 352. [2022-11-20 20:05:16,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 231 states have (on average 1.4155844155844155) internal successors, (327), 235 states have internal predecessors, (327), 86 states have call successors, (86), 36 states have call predecessors, (86), 34 states have return successors, (85), 82 states have call predecessors, (85), 85 states have call successors, (85) [2022-11-20 20:05:16,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 498 transitions. [2022-11-20 20:05:16,465 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 498 transitions. Word has length 117 [2022-11-20 20:05:16,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:05:16,466 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 498 transitions. [2022-11-20 20:05:16,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 27 states have (on average 2.111111111111111) internal successors, (57), 25 states have internal predecessors, (57), 13 states have call successors, (26), 9 states have call predecessors, (26), 7 states have return successors, (23), 11 states have call predecessors, (23), 11 states have call successors, (23) [2022-11-20 20:05:16,467 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 498 transitions. [2022-11-20 20:05:16,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-20 20:05:16,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:05:16,470 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1] [2022-11-20 20:05:16,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 20:05:16,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:05:16,680 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:05:16,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:05:16,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1945523816, now seen corresponding path program 1 times [2022-11-20 20:05:16,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:05:16,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206327976] [2022-11-20 20:05:16,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:05:16,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:05:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:05:16,869 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-20 20:05:16,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:05:16,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206327976] [2022-11-20 20:05:16,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206327976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:05:16,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:05:16,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:05:16,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220535840] [2022-11-20 20:05:16,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:05:16,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:05:16,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:05:16,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:05:16,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:05:16,874 INFO L87 Difference]: Start difference. First operand 352 states and 498 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-20 20:05:17,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:05:17,259 INFO L93 Difference]: Finished difference Result 791 states and 1152 transitions. [2022-11-20 20:05:17,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:05:17,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 122 [2022-11-20 20:05:17,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:05:17,264 INFO L225 Difference]: With dead ends: 791 [2022-11-20 20:05:17,264 INFO L226 Difference]: Without dead ends: 477 [2022-11-20 20:05:17,265 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 20:05:17,266 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 57 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:05:17,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 519 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:05:17,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-11-20 20:05:17,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 470. [2022-11-20 20:05:17,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 318 states have (on average 1.449685534591195) internal successors, (461), 322 states have internal predecessors, (461), 117 states have call successors, (117), 36 states have call predecessors, (117), 34 states have return successors, (116), 113 states have call predecessors, (116), 116 states have call successors, (116) [2022-11-20 20:05:17,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 694 transitions. [2022-11-20 20:05:17,506 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 694 transitions. Word has length 122 [2022-11-20 20:05:17,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:05:17,507 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 694 transitions. [2022-11-20 20:05:17,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-20 20:05:17,507 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 694 transitions. [2022-11-20 20:05:17,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-20 20:05:17,510 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:05:17,511 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1] [2022-11-20 20:05:17,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 20:05:17,511 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:05:17,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:05:17,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1174085287, now seen corresponding path program 1 times [2022-11-20 20:05:17,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:05:17,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371144132] [2022-11-20 20:05:17,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:05:17,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:05:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:05:17,735 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-20 20:05:17,735 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:05:17,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371144132] [2022-11-20 20:05:17,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371144132] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:05:17,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358996875] [2022-11-20 20:05:17,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:05:17,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:05:17,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:05:17,738 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:05:17,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 20:05:18,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:05:18,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 1312 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:05:18,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:05:18,193 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-20 20:05:18,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:05:18,313 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-20 20:05:18,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358996875] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:05:18,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [568162045] [2022-11-20 20:05:18,319 INFO L159 IcfgInterpreter]: Started Sifa with 100 locations of interest [2022-11-20 20:05:18,319 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:05:18,320 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:05:18,320 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:05:18,320 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:05:55,086 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-20 20:05:55,430 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 263 for LOIs [2022-11-20 20:05:57,419 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-11-20 20:05:57,708 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 263 for LOIs [2022-11-20 20:06:00,932 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 233 for LOIs [2022-11-20 20:06:00,998 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 225 for LOIs [2022-11-20 20:06:01,043 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 233 for LOIs [2022-11-20 20:06:01,086 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 250 for LOIs [2022-11-20 20:06:01,139 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:06:24,905 WARN L233 SmtUtils]: Spent 5.36s on a formula simplification. DAG size of input: 442 DAG size of output: 270 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:06:30,303 WARN L233 SmtUtils]: Spent 5.22s on a formula simplification. DAG size of input: 465 DAG size of output: 290 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:06:36,500 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification. DAG size of input: 464 DAG size of output: 292 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:06:44,105 WARN L233 SmtUtils]: Spent 7.44s on a formula simplification. DAG size of input: 476 DAG size of output: 352 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:06:56,652 WARN L233 SmtUtils]: Spent 6.21s on a formula simplification. DAG size of input: 498 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:07:05,745 WARN L233 SmtUtils]: Spent 7.76s on a formula simplification. DAG size of input: 508 DAG size of output: 337 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:07:17,542 WARN L233 SmtUtils]: Spent 11.44s on a formula simplification. DAG size of input: 584 DAG size of output: 333 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:08:00,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [568162045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:08:00,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-20 20:08:00,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [4, 4, 4] total 50 [2022-11-20 20:08:00,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943665378] [2022-11-20 20:08:00,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:08:00,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-11-20 20:08:00,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:08:00,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-11-20 20:08:00,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=2299, Unknown=0, NotChecked=0, Total=2450 [2022-11-20 20:08:00,630 INFO L87 Difference]: Start difference. First operand 470 states and 694 transitions. Second operand has 45 states, 30 states have (on average 2.0) internal successors, (60), 28 states have internal predecessors, (60), 14 states have call successors, (27), 9 states have call predecessors, (27), 7 states have return successors, (24), 12 states have call predecessors, (24), 12 states have call successors, (24) [2022-11-20 20:09:13,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:09:13,045 INFO L93 Difference]: Finished difference Result 944 states and 1424 transitions. [2022-11-20 20:09:13,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-20 20:09:13,046 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 30 states have (on average 2.0) internal successors, (60), 28 states have internal predecessors, (60), 14 states have call successors, (27), 9 states have call predecessors, (27), 7 states have return successors, (24), 12 states have call predecessors, (24), 12 states have call successors, (24) Word has length 123 [2022-11-20 20:09:13,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:09:13,050 INFO L225 Difference]: With dead ends: 944 [2022-11-20 20:09:13,051 INFO L226 Difference]: Without dead ends: 592 [2022-11-20 20:09:13,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 766 ImplicationChecksByTransitivity, 163.3s TimeCoverageRelationStatistics Valid=242, Invalid=3418, Unknown=0, NotChecked=0, Total=3660 [2022-11-20 20:09:13,054 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 330 mSDsluCounter, 5512 mSDsCounter, 0 mSdLazyCounter, 6422 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 5792 SdHoareTripleChecker+Invalid, 6464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 6422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.8s IncrementalHoareTripleChecker+Time [2022-11-20 20:09:13,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 5792 Invalid, 6464 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [42 Valid, 6422 Invalid, 0 Unknown, 0 Unchecked, 27.8s Time] [2022-11-20 20:09:13,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-11-20 20:09:13,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 498. [2022-11-20 20:09:13,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 343 states have (on average 1.4518950437317784) internal successors, (498), 348 states have internal predecessors, (498), 119 states have call successors, (119), 37 states have call predecessors, (119), 35 states have return successors, (118), 114 states have call predecessors, (118), 118 states have call successors, (118) [2022-11-20 20:09:13,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 735 transitions. [2022-11-20 20:09:13,449 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 735 transitions. Word has length 123 [2022-11-20 20:09:13,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:09:13,450 INFO L495 AbstractCegarLoop]: Abstraction has 498 states and 735 transitions. [2022-11-20 20:09:13,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 30 states have (on average 2.0) internal successors, (60), 28 states have internal predecessors, (60), 14 states have call successors, (27), 9 states have call predecessors, (27), 7 states have return successors, (24), 12 states have call predecessors, (24), 12 states have call successors, (24) [2022-11-20 20:09:13,450 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 735 transitions. [2022-11-20 20:09:13,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-20 20:09:13,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:09:13,453 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 20:09:13,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 20:09:13,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:09:13,655 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:09:13,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:09:13,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1009357379, now seen corresponding path program 1 times [2022-11-20 20:09:13,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:09:13,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344693791] [2022-11-20 20:09:13,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:09:13,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:09:13,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:09:13,831 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 20:09:13,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:09:13,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344693791] [2022-11-20 20:09:13,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344693791] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:09:13,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669866976] [2022-11-20 20:09:13,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:09:13,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:09:13,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:09:13,834 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:09:13,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28d6ff0f-2f95-4ee3-bddd-3579158417bc/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 20:09:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:09:14,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:09:14,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:09:14,224 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 20:09:14,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:09:14,315 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 20:09:14,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669866976] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:09:14,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1713571043] [2022-11-20 20:09:14,324 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2022-11-20 20:09:14,325 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:09:14,326 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:09:14,326 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:09:14,330 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:09:53,350 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-20 20:09:53,636 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 267 for LOIs [2022-11-20 20:09:55,416 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-11-20 20:09:55,452 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-20 20:09:55,729 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 267 for LOIs [2022-11-20 20:10:00,016 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 277 for LOIs [2022-11-20 20:10:18,627 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 251 for LOIs [2022-11-20 20:10:19,257 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 251 for LOIs [2022-11-20 20:10:19,297 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 452 for LOIs [2022-11-20 20:10:19,842 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 249 for LOIs [2022-11-20 20:10:19,909 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 431 for LOIs [2022-11-20 20:10:20,465 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 473 for LOIs [2022-11-20 20:10:22,225 INFO L197 IcfgInterpreter]: Interpreting procedure isVerified with input of size 251 for LOIs [2022-11-20 20:10:22,265 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 254 for LOIs [2022-11-20 20:10:22,311 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:10:40,616 WARN L233 SmtUtils]: Spent 5.16s 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 20:10:54,023 WARN L233 SmtUtils]: Spent 5.22s on a formula simplification. DAG size of input: 464 DAG size of output: 292 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:11:00,826 WARN L233 SmtUtils]: Spent 6.64s on a formula simplification. DAG size of input: 476 DAG size of output: 352 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:11:12,211 WARN L233 SmtUtils]: Spent 5.77s on a formula simplification. DAG size of input: 498 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:11:20,164 WARN L233 SmtUtils]: Spent 6.69s on a formula simplification. DAG size of input: 508 DAG size of output: 337 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:11:32,425 WARN L233 SmtUtils]: Spent 7.36s on a formula simplification. DAG size of input: 556 DAG size of output: 377 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:11:42,055 WARN L233 SmtUtils]: Spent 9.33s on a formula simplification. DAG size of input: 560 DAG size of output: 430 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:11:51,593 WARN L233 SmtUtils]: Spent 9.23s on a formula simplification. DAG size of input: 556 DAG size of output: 426 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:12:01,309 WARN L233 SmtUtils]: Spent 9.39s on a formula simplification. DAG size of input: 562 DAG size of output: 432 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:12:14,417 WARN L233 SmtUtils]: Spent 5.91s on a formula simplification. DAG size of input: 473 DAG size of output: 279 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:12:39,009 WARN L233 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 452 DAG size of output: 269 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:12:45,305 WARN L233 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 478 DAG size of output: 285 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:13:11,730 WARN L233 SmtUtils]: Spent 6.21s on a formula simplification. DAG size of input: 431 DAG size of output: 255 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:13:18,711 WARN L233 SmtUtils]: Spent 6.30s on a formula simplification. DAG size of input: 450 DAG size of output: 263 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:13:24,720 WARN L233 SmtUtils]: Spent 5.42s on a formula simplification. DAG size of input: 467 DAG size of output: 336 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:13:30,804 WARN L233 SmtUtils]: Spent 5.47s on a formula simplification. DAG size of input: 469 DAG size of output: 338 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:14:03,035 WARN L233 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 545 DAG size of output: 372 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:14:09,330 WARN L233 SmtUtils]: Spent 5.45s on a formula simplification. DAG size of input: 546 DAG size of output: 370 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)