./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/bin/utaipan-Q6hlc19bkW --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 7f7652bf269245a8144605490a4a891295a82bf8357d2cf3971e290586b4e5c1 --- 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-4e7fbc6 [2022-11-23 14:54:34,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:54:34,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:54:34,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:54:34,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:54:34,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:54:34,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:54:34,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:54:34,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:54:34,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:54:34,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:54:34,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:54:34,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:54:34,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:54:34,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:54:34,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:54:34,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:54:34,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:54:34,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:54:34,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:54:34,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:54:34,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:54:34,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:54:34,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:54:34,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:54:34,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:54:34,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:54:34,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:54:34,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:54:34,241 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:54:34,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:54:34,242 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:54:34,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:54:34,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:54:34,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:54:34,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:54:34,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:54:34,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:54:34,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:54:34,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:54:34,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:54:34,256 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:54:34,302 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:54:34,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:54:34,303 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:54:34,303 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:54:34,304 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:54:34,304 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:54:34,304 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:54:34,304 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:54:34,305 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:54:34,305 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:54:34,306 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:54:34,306 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:54:34,306 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:54:34,306 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:54:34,307 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:54:34,307 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:54:34,307 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:54:34,307 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:54:34,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:54:34,309 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:54:34,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:54:34,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:54:34,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:54:34,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:54:34,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:54:34,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:54:34,310 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:54:34,311 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:54:34,311 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:54:34,311 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:54:34,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:54:34,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:54:34,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:54:34,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:54:34,312 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:54:34,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:54:34,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:54:34,313 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:54:34,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:54:34,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:54:34,314 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:54:34,315 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_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f7652bf269245a8144605490a4a891295a82bf8357d2cf3971e290586b4e5c1 [2022-11-23 14:54:34,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:54:34,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:54:34,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:54:34,669 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:54:34,669 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:54:34,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/email_spec27_product27.cil.c [2022-11-23 14:54:37,696 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:54:38,061 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:54:38,062 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/sv-benchmarks/c/product-lines/email_spec27_product27.cil.c [2022-11-23 14:54:38,079 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/bin/utaipan-Q6hlc19bkW/data/10608f4c0/148fa984a79c42c89cff608a24337586/FLAG996c2bcec [2022-11-23 14:54:38,094 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/bin/utaipan-Q6hlc19bkW/data/10608f4c0/148fa984a79c42c89cff608a24337586 [2022-11-23 14:54:38,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:54:38,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:54:38,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:54:38,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:54:38,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:54:38,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:54:38" (1/1) ... [2022-11-23 14:54:38,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@436d805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:38, skipping insertion in model container [2022-11-23 14:54:38,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:54:38" (1/1) ... [2022-11-23 14:54:38,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:54:38,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:54:38,793 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_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/sv-benchmarks/c/product-lines/email_spec27_product27.cil.c[57688,57701] [2022-11-23 14:54:38,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:54:38,850 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:54:38,975 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_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/sv-benchmarks/c/product-lines/email_spec27_product27.cil.c[57688,57701] [2022-11-23 14:54:38,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:54:39,014 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:54:39,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:39 WrapperNode [2022-11-23 14:54:39,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:54:39,016 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:54:39,016 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:54:39,016 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:54:39,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:39" (1/1) ... [2022-11-23 14:54:39,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:39" (1/1) ... [2022-11-23 14:54:39,098 INFO L138 Inliner]: procedures = 133, calls = 229, calls flagged for inlining = 63, calls inlined = 60, statements flattened = 1079 [2022-11-23 14:54:39,098 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:54:39,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:54:39,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:54:39,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:54:39,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:39" (1/1) ... [2022-11-23 14:54:39,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:39" (1/1) ... [2022-11-23 14:54:39,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:39" (1/1) ... [2022-11-23 14:54:39,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:39" (1/1) ... [2022-11-23 14:54:39,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:39" (1/1) ... [2022-11-23 14:54:39,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:39" (1/1) ... [2022-11-23 14:54:39,179 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:39" (1/1) ... [2022-11-23 14:54:39,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:39" (1/1) ... [2022-11-23 14:54:39,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:54:39,208 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:54:39,208 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:54:39,208 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:54:39,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:39" (1/1) ... [2022-11-23 14:54:39,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:54:39,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:54:39,270 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:54:39,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:54:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-23 14:54:39,325 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-23 14:54:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-23 14:54:39,326 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-23 14:54:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-23 14:54:39,326 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-23 14:54:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-23 14:54:39,326 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-23 14:54:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-23 14:54:39,326 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-23 14:54:39,327 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-23 14:54:39,327 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-23 14:54:39,327 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-23 14:54:39,327 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-23 14:54:39,327 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-23 14:54:39,327 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-23 14:54:39,327 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-23 14:54:39,328 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-23 14:54:39,328 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-23 14:54:39,328 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-23 14:54:39,328 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-23 14:54:39,328 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-23 14:54:39,329 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-23 14:54:39,329 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-23 14:54:39,329 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-23 14:54:39,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:54:39,330 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-23 14:54:39,330 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-23 14:54:39,331 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-23 14:54:39,331 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-23 14:54:39,332 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-23 14:54:39,332 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-23 14:54:39,333 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-23 14:54:39,333 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-23 14:54:39,333 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-23 14:54:39,333 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-23 14:54:39,333 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2022-11-23 14:54:39,333 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2022-11-23 14:54:39,334 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-23 14:54:39,334 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-23 14:54:39,334 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-23 14:54:39,334 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-23 14:54:39,334 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-23 14:54:39,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-23 14:54:39,335 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-23 14:54:39,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-23 14:54:39,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:54:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-23 14:54:39,336 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-23 14:54:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-23 14:54:39,337 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-23 14:54:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:54:39,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:54:39,685 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:54:39,687 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:54:40,840 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:54:41,483 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:54:41,484 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:54:41,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:54:41 BoogieIcfgContainer [2022-11-23 14:54:41,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:54:41,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:54:41,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:54:41,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:54:41,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:54:38" (1/3) ... [2022-11-23 14:54:41,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1965c8d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:54:41, skipping insertion in model container [2022-11-23 14:54:41,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:39" (2/3) ... [2022-11-23 14:54:41,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1965c8d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:54:41, skipping insertion in model container [2022-11-23 14:54:41,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:54:41" (3/3) ... [2022-11-23 14:54:41,500 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product27.cil.c [2022-11-23 14:54:41,521 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:54:41,521 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:54:41,587 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:54:41,594 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;@8f1aa24, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:54:41,594 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:54:41,600 INFO L276 IsEmpty]: Start isEmpty. Operand has 204 states, 116 states have (on average 1.3017241379310345) internal successors, (151), 119 states have internal predecessors, (151), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-23 14:54:41,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-23 14:54:41,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:54:41,614 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:54:41,615 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:54:41,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:54:41,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1959112043, now seen corresponding path program 1 times [2022-11-23 14:54:41,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:54:41,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684812679] [2022-11-23 14:54:41,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:54:41,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:54:41,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:54:42,063 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:54:42,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:54:42,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684812679] [2022-11-23 14:54:42,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684812679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:54:42,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:54:42,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:54:42,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931355324] [2022-11-23 14:54:42,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:54:42,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:54:42,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:54:42,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:54:42,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:54:42,120 INFO L87 Difference]: Start difference. First operand has 204 states, 116 states have (on average 1.3017241379310345) internal successors, (151), 119 states have internal predecessors, (151), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:54:42,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:54:42,380 INFO L93 Difference]: Finished difference Result 316 states and 421 transitions. [2022-11-23 14:54:42,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:54:42,387 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 75 [2022-11-23 14:54:42,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:54:42,401 INFO L225 Difference]: With dead ends: 316 [2022-11-23 14:54:42,401 INFO L226 Difference]: Without dead ends: 201 [2022-11-23 14:54:42,406 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 [2022-11-23 14:54:42,416 INFO L413 NwaCegarLoop]: 230 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, 230 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:54:42,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 230 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:54:42,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-11-23 14:54:42,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2022-11-23 14:54:42,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 114 states have (on average 1.2719298245614035) internal successors, (145), 116 states have internal predecessors, (145), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-11-23 14:54:42,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 268 transitions. [2022-11-23 14:54:42,519 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 268 transitions. Word has length 75 [2022-11-23 14:54:42,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:54:42,522 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 268 transitions. [2022-11-23 14:54:42,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:54:42,528 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 268 transitions. [2022-11-23 14:54:42,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-23 14:54:42,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:54:42,535 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:54:42,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:54:42,536 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:54:42,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:54:42,537 INFO L85 PathProgramCache]: Analyzing trace with hash 973138729, now seen corresponding path program 1 times [2022-11-23 14:54:42,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:54:42,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894298469] [2022-11-23 14:54:42,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:54:42,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:54:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:54:42,910 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:54:42,911 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:54:42,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894298469] [2022-11-23 14:54:42,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894298469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:54:42,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:54:42,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:54:42,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956939357] [2022-11-23 14:54:42,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:54:42,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:54:42,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:54:42,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:54:42,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:54:42,920 INFO L87 Difference]: Start difference. First operand 201 states and 268 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:54:43,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:54:43,097 INFO L93 Difference]: Finished difference Result 312 states and 406 transitions. [2022-11-23 14:54:43,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:54:43,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 76 [2022-11-23 14:54:43,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:54:43,107 INFO L225 Difference]: With dead ends: 312 [2022-11-23 14:54:43,107 INFO L226 Difference]: Without dead ends: 203 [2022-11-23 14:54:43,115 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 [2022-11-23 14:54:43,118 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 0 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:54:43,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 453 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:54:43,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-11-23 14:54:43,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2022-11-23 14:54:43,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 116 states have (on average 1.2672413793103448) internal successors, (147), 118 states have internal predecessors, (147), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-11-23 14:54:43,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 270 transitions. [2022-11-23 14:54:43,144 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 270 transitions. Word has length 76 [2022-11-23 14:54:43,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:54:43,145 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 270 transitions. [2022-11-23 14:54:43,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:54:43,146 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 270 transitions. [2022-11-23 14:54:43,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-23 14:54:43,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:54:43,152 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:54:43,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:54:43,152 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:54:43,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:54:43,153 INFO L85 PathProgramCache]: Analyzing trace with hash 996357324, now seen corresponding path program 1 times [2022-11-23 14:54:43,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:54:43,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323242561] [2022-11-23 14:54:43,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:54:43,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:54:43,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:54:43,328 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:54:43,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:54:43,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323242561] [2022-11-23 14:54:43,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323242561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:54:43,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:54:43,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:54:43,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256661372] [2022-11-23 14:54:43,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:54:43,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:54:43,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:54:43,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:54:43,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:54:43,334 INFO L87 Difference]: Start difference. First operand 203 states and 270 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:54:43,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:54:43,530 INFO L93 Difference]: Finished difference Result 441 states and 607 transitions. [2022-11-23 14:54:43,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:54:43,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 81 [2022-11-23 14:54:43,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:54:43,533 INFO L225 Difference]: With dead ends: 441 [2022-11-23 14:54:43,546 INFO L226 Difference]: Without dead ends: 256 [2022-11-23 14:54:43,547 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 [2022-11-23 14:54:43,548 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 59 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:54:43,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 466 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:54:43,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-11-23 14:54:43,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 251. [2022-11-23 14:54:43,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 150 states have (on average 1.3466666666666667) internal successors, (202), 152 states have internal predecessors, (202), 76 states have call successors, (76), 24 states have call predecessors, (76), 24 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-23 14:54:43,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 353 transitions. [2022-11-23 14:54:43,581 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 353 transitions. Word has length 81 [2022-11-23 14:54:43,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:54:43,582 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 353 transitions. [2022-11-23 14:54:43,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:54:43,582 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 353 transitions. [2022-11-23 14:54:43,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-23 14:54:43,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:54:43,584 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:54:43,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:54:43,585 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:54:43,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:54:43,585 INFO L85 PathProgramCache]: Analyzing trace with hash -694188139, now seen corresponding path program 1 times [2022-11-23 14:54:43,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:54:43,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668414391] [2022-11-23 14:54:43,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:54:43,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:54:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:54:43,836 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:54:43,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:54:43,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668414391] [2022-11-23 14:54:43,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668414391] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:54:43,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72082810] [2022-11-23 14:54:43,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:54:43,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:54:43,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:54:43,841 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:54:43,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:54:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:54:44,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 1101 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:54:44,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:54:44,284 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:54:44,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:54:44,387 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:54:44,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72082810] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:54:44,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [645204026] [2022-11-23 14:54:44,421 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-23 14:54:44,421 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:54:44,426 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:54:44,431 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:54:44,432 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:55:26,491 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-23 14:55:26,789 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 468 for LOIs [2022-11-23 14:55:58,854 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 446 for LOIs [2022-11-23 14:55:59,135 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-23 14:55:59,441 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 466 for LOIs [2022-11-23 14:56:13,589 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 268 for LOIs [2022-11-23 14:56:18,403 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 434 for LOIs [2022-11-23 14:56:18,624 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 250 for LOIs [2022-11-23 14:56:18,666 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 448 for LOIs [2022-11-23 14:56:19,317 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 444 for LOIs [2022-11-23 14:56:19,606 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:56:37,851 WARN L233 SmtUtils]: Spent 5.18s 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) [2022-11-23 14:57:11,557 WARN L233 SmtUtils]: Spent 6.92s on a formula simplification. DAG size of input: 508 DAG size of output: 346 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:57:22,514 WARN L233 SmtUtils]: Spent 10.66s on a formula simplification. DAG size of input: 589 DAG size of output: 346 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:57:28,431 WARN L233 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 555 DAG size of output: 333 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:57:34,414 WARN L233 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 557 DAG size of output: 335 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:57:41,306 WARN L233 SmtUtils]: Spent 6.58s on a formula simplification. DAG size of input: 561 DAG size of output: 363 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:57:48,169 WARN L233 SmtUtils]: Spent 6.53s on a formula simplification. DAG size of input: 557 DAG size of output: 359 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:57:55,112 WARN L233 SmtUtils]: Spent 6.61s on a formula simplification. DAG size of input: 563 DAG size of output: 365 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:58:01,074 WARN L233 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 556 DAG size of output: 334 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:58:11,795 WARN L233 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 482 DAG size of output: 320 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:58:23,950 WARN L233 SmtUtils]: Spent 5.46s on a formula simplification. DAG size of input: 522 DAG size of output: 299 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:58:38,130 WARN L233 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 518 DAG size of output: 282 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:58:45,194 WARN L233 SmtUtils]: Spent 6.55s on a formula simplification. DAG size of input: 531 DAG size of output: 327 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:58:57,230 WARN L233 SmtUtils]: Spent 6.05s on a formula simplification. DAG size of input: 568 DAG size of output: 356 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:59:26,533 WARN L233 SmtUtils]: Spent 7.64s on a formula simplification. DAG size of input: 497 DAG size of output: 391 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:59:35,603 WARN L233 SmtUtils]: Spent 8.42s on a formula simplification. DAG size of input: 513 DAG size of output: 407 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:59:50,472 WARN L233 SmtUtils]: Spent 6.48s on a formula simplification. DAG size of input: 533 DAG size of output: 331 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:59:56,615 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 533 DAG size of output: 338 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:59:56,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [645204026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:59:56,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:59:56,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [4, 4, 4] total 55 [2022-11-23 14:59:56,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395322583] [2022-11-23 14:59:56,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:59:56,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-23 14:59:56,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:59:56,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-23 14:59:56,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=2820, Unknown=0, NotChecked=0, Total=2970 [2022-11-23 14:59:56,624 INFO L87 Difference]: Start difference. First operand 251 states and 353 transitions. Second operand has 50 states, 33 states have (on average 1.303030303030303) internal successors, (43), 30 states have internal predecessors, (43), 16 states have call successors, (18), 11 states have call predecessors, (18), 8 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2022-11-23 15:00:04,590 WARN L233 SmtUtils]: Spent 5.17s on a formula simplification. DAG size of input: 472 DAG size of output: 344 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:01:15,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:01:15,329 INFO L93 Difference]: Finished difference Result 671 states and 1014 transitions. [2022-11-23 15:01:15,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-11-23 15:01:15,330 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 33 states have (on average 1.303030303030303) internal successors, (43), 30 states have internal predecessors, (43), 16 states have call successors, (18), 11 states have call predecessors, (18), 8 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) Word has length 82 [2022-11-23 15:01:15,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:01:15,334 INFO L225 Difference]: With dead ends: 671 [2022-11-23 15:01:15,334 INFO L226 Difference]: Without dead ends: 438 [2022-11-23 15:01:15,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 861 ImplicationChecksByTransitivity, 260.0s TimeCoverageRelationStatistics Valid=216, Invalid=3816, Unknown=0, NotChecked=0, Total=4032 [2022-11-23 15:01:15,338 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 337 mSDsluCounter, 5661 mSDsCounter, 0 mSdLazyCounter, 7831 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 5937 SdHoareTripleChecker+Invalid, 7868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 7831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:01:15,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 5937 Invalid, 7868 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [37 Valid, 7831 Invalid, 0 Unknown, 0 Unchecked, 34.8s Time] [2022-11-23 15:01:15,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2022-11-23 15:01:15,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 330. [2022-11-23 15:01:15,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 207 states have (on average 1.3429951690821256) internal successors, (278), 210 states have internal predecessors, (278), 91 states have call successors, (91), 33 states have call predecessors, (91), 31 states have return successors, (91), 86 states have call predecessors, (91), 90 states have call successors, (91) [2022-11-23 15:01:15,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 460 transitions. [2022-11-23 15:01:15,570 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 460 transitions. Word has length 82 [2022-11-23 15:01:15,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:01:15,571 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 460 transitions. [2022-11-23 15:01:15,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 33 states have (on average 1.303030303030303) internal successors, (43), 30 states have internal predecessors, (43), 16 states have call successors, (18), 11 states have call predecessors, (18), 8 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2022-11-23 15:01:15,571 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 460 transitions. [2022-11-23 15:01:15,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-23 15:01:15,575 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:01:15,575 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:01:15,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-23 15:01:15,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:01:15,784 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:01:15,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:01:15,785 INFO L85 PathProgramCache]: Analyzing trace with hash 970244270, now seen corresponding path program 1 times [2022-11-23 15:01:15,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:01:15,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498376378] [2022-11-23 15:01:15,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:01:15,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:01:15,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:01:15,917 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:01:15,917 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:01:15,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498376378] [2022-11-23 15:01:15,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498376378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:01:15,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:01:15,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:01:15,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739351250] [2022-11-23 15:01:15,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:01:15,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:01:15,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:01:15,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:01:15,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:01:15,922 INFO L87 Difference]: Start difference. First operand 330 states and 460 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 15:01:16,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:01:16,410 INFO L93 Difference]: Finished difference Result 762 states and 1100 transitions. [2022-11-23 15:01:16,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:01:16,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 87 [2022-11-23 15:01:16,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:01:16,414 INFO L225 Difference]: With dead ends: 762 [2022-11-23 15:01:16,415 INFO L226 Difference]: Without dead ends: 458 [2022-11-23 15:01:16,416 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 [2022-11-23 15:01:16,418 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 57 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:01:16,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 485 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:01:16,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-11-23 15:01:16,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 451. [2022-11-23 15:01:16,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 297 states have (on average 1.4074074074074074) internal successors, (418), 300 states have internal predecessors, (418), 122 states have call successors, (122), 33 states have call predecessors, (122), 31 states have return successors, (122), 117 states have call predecessors, (122), 121 states have call successors, (122) [2022-11-23 15:01:16,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 662 transitions. [2022-11-23 15:01:16,831 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 662 transitions. Word has length 87 [2022-11-23 15:01:16,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:01:16,835 INFO L495 AbstractCegarLoop]: Abstraction has 451 states and 662 transitions. [2022-11-23 15:01:16,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 15:01:16,835 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 662 transitions. [2022-11-23 15:01:16,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-23 15:01:16,849 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:01:16,850 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:01:16,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:01:16,850 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:01:16,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:01:16,856 INFO L85 PathProgramCache]: Analyzing trace with hash 96626831, now seen corresponding path program 1 times [2022-11-23 15:01:16,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:01:16,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566354777] [2022-11-23 15:01:16,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:01:16,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:01:16,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:01:17,044 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 15:01:17,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:01:17,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566354777] [2022-11-23 15:01:17,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566354777] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:01:17,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750809936] [2022-11-23 15:01:17,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:01:17,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:01:17,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:01:17,047 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:01:17,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e21c2e0-2424-4c1c-a4ec-6389615d39b5/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:01:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:01:17,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 1115 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:01:17,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:01:17,484 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 15:01:17,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:01:17,560 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 15:01:17,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750809936] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:01:17,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [246597628] [2022-11-23 15:01:17,565 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2022-11-23 15:01:17,565 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:01:17,566 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:01:17,566 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:01:17,566 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:01:55,434 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-23 15:01:55,734 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 468 for LOIs [2022-11-23 15:02:31,706 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 446 for LOIs [2022-11-23 15:02:32,003 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-23 15:02:32,380 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 466 for LOIs [2022-11-23 15:02:57,488 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 268 for LOIs [2022-11-23 15:03:20,149 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 434 for LOIs [2022-11-23 15:03:20,469 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 250 for LOIs [2022-11-23 15:03:20,518 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 448 for LOIs [2022-11-23 15:03:21,344 INFO L197 IcfgInterpreter]: Interpreting procedure isVerified with input of size 250 for LOIs [2022-11-23 15:03:21,397 INFO L197 IcfgInterpreter]: Interpreting procedure isSigned with input of size 434 for LOIs [2022-11-23 15:03:21,699 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 455 for LOIs [2022-11-23 15:03:22,730 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:03:57,592 WARN L233 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 476 DAG size of output: 294 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:04:16,141 WARN L233 SmtUtils]: Spent 7.51s on a formula simplification. DAG size of input: 508 DAG size of output: 346 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:04:33,464 WARN L233 SmtUtils]: Spent 16.95s on a formula simplification. DAG size of input: 585 DAG size of output: 408 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:04:40,185 WARN L233 SmtUtils]: Spent 6.41s on a formula simplification. DAG size of input: 555 DAG size of output: 333 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:04:46,757 WARN L233 SmtUtils]: Spent 6.23s on a formula simplification. DAG size of input: 557 DAG size of output: 335 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:04:54,383 WARN L233 SmtUtils]: Spent 7.29s on a formula simplification. DAG size of input: 561 DAG size of output: 363 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:05:01,931 WARN L233 SmtUtils]: Spent 7.20s on a formula simplification. DAG size of input: 557 DAG size of output: 359 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:05:10,743 WARN L233 SmtUtils]: Spent 8.44s on a formula simplification. DAG size of input: 563 DAG size of output: 365 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:05:17,673 WARN L233 SmtUtils]: Spent 6.49s on a formula simplification. DAG size of input: 556 DAG size of output: 334 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:05:23,377 WARN L233 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 468 DAG size of output: 306 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:05:29,516 WARN L233 SmtUtils]: Spent 5.80s on a formula simplification. DAG size of input: 482 DAG size of output: 320 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:05:43,298 WARN L233 SmtUtils]: Spent 5.97s on a formula simplification. DAG size of input: 522 DAG size of output: 299 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:05:58,311 WARN L233 SmtUtils]: Spent 5.38s on a formula simplification. DAG size of input: 518 DAG size of output: 282 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:06:05,415 WARN L233 SmtUtils]: Spent 6.63s on a formula simplification. DAG size of input: 531 DAG size of output: 327 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:06:17,727 WARN L233 SmtUtils]: Spent 6.58s on a formula simplification. DAG size of input: 568 DAG size of output: 356 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:06:25,328 WARN L233 SmtUtils]: Spent 7.04s on a formula simplification. DAG size of input: 455 DAG size of output: 324 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:06:33,380 WARN L233 SmtUtils]: Spent 7.48s on a formula simplification. DAG size of input: 479 DAG size of output: 331 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:06:57,564 WARN L233 SmtUtils]: Spent 8.08s on a formula simplification. DAG size of input: 497 DAG size of output: 391 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:07:07,392 WARN L233 SmtUtils]: Spent 9.08s on a formula simplification. DAG size of input: 513 DAG size of output: 407 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:07:24,347 WARN L233 SmtUtils]: Spent 6.81s on a formula simplification. DAG size of input: 533 DAG size of output: 331 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:07:31,255 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification. DAG size of input: 533 DAG size of output: 338 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:07:38,241 WARN L233 SmtUtils]: Spent 6.26s on a formula simplification. DAG size of input: 434 DAG size of output: 316 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:07:45,312 WARN L233 SmtUtils]: Spent 6.30s on a formula simplification. DAG size of input: 452 DAG size of output: 323 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:07:53,229 WARN L233 SmtUtils]: Spent 7.03s on a formula simplification. DAG size of input: 528 DAG size of output: 372 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:08:01,154 WARN L233 SmtUtils]: Spent 7.02s on a formula simplification. DAG size of input: 528 DAG size of output: 372 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:08:09,613 WARN L233 SmtUtils]: Spent 7.52s on a formula simplification. DAG size of input: 527 DAG size of output: 371 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)