./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec3_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec3_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --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 7d9bd30209b011511ea69bcafefe21478bc06dd6e294313a5c1455634308a9dd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:52:22,999 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:52:23,059 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 17:52:23,063 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:52:23,063 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:52:23,084 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:52:23,085 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:52:23,085 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:52:23,086 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:52:23,087 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:52:23,087 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:52:23,088 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:52:23,088 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:52:23,089 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:52:23,089 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:52:23,090 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:52:23,090 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:52:23,091 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:52:23,091 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:52:23,092 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:52:23,092 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:52:23,093 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:52:23,094 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:52:23,094 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:52:23,095 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:52:23,095 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:52:23,096 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:52:23,096 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:52:23,096 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:52:23,097 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:52:23,097 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:52:23,098 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:52:23,098 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:52:23,098 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:52:23,099 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:52:23,099 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:52:23,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:52:23,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:52:23,099 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:52:23,099 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:52:23,100 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:52:23,100 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:52:23,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:52:23,100 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:52:23,101 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:52:23,101 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:52:23,101 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:52:23,101 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d9bd30209b011511ea69bcafefe21478bc06dd6e294313a5c1455634308a9dd [2023-12-02 17:52:23,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:52:23,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:52:23,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:52:23,329 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:52:23,329 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:52:23,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec3_product25.cil.c [2023-12-02 17:52:26,033 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:52:26,288 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:52:26,289 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/sv-benchmarks/c/product-lines/email_spec3_product25.cil.c [2023-12-02 17:52:26,310 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/data/af5246922/662d2d208f264c6cb7e14df4595eb413/FLAGfa544dfd1 [2023-12-02 17:52:26,324 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/data/af5246922/662d2d208f264c6cb7e14df4595eb413 [2023-12-02 17:52:26,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:52:26,328 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:52:26,329 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:52:26,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:52:26,333 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:52:26,334 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:52:26" (1/1) ... [2023-12-02 17:52:26,335 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5947a7f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:26, skipping insertion in model container [2023-12-02 17:52:26,335 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:52:26" (1/1) ... [2023-12-02 17:52:26,411 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:52:26,857 WARN L240 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_0b1503e9-9f42-47f6-b8ed-3426580fbd85/sv-benchmarks/c/product-lines/email_spec3_product25.cil.c[64426,64439] [2023-12-02 17:52:26,861 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:52:26,874 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:52:26,906 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [48] [2023-12-02 17:52:26,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [460] [2023-12-02 17:52:26,908 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [826] [2023-12-02 17:52:26,908 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [844] [2023-12-02 17:52:26,908 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1073] [2023-12-02 17:52:26,908 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2153] [2023-12-02 17:52:26,908 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2202] [2023-12-02 17:52:26,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [2548] [2023-12-02 17:52:26,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2607] [2023-12-02 17:52:26,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2703] [2023-12-02 17:52:26,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2991] [2023-12-02 17:52:26,999 WARN L240 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_0b1503e9-9f42-47f6-b8ed-3426580fbd85/sv-benchmarks/c/product-lines/email_spec3_product25.cil.c[64426,64439] [2023-12-02 17:52:27,000 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:52:27,028 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:52:27,036 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:52:27,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27 WrapperNode [2023-12-02 17:52:27,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:52:27,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:52:27,037 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:52:27,037 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:52:27,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (1/1) ... [2023-12-02 17:52:27,073 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (1/1) ... [2023-12-02 17:52:27,127 INFO L138 Inliner]: procedures = 131, calls = 227, calls flagged for inlining = 59, calls inlined = 56, statements flattened = 1076 [2023-12-02 17:52:27,128 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:52:27,128 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:52:27,128 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:52:27,129 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:52:27,138 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (1/1) ... [2023-12-02 17:52:27,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (1/1) ... [2023-12-02 17:52:27,146 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (1/1) ... [2023-12-02 17:52:27,146 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (1/1) ... [2023-12-02 17:52:27,171 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (1/1) ... [2023-12-02 17:52:27,182 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (1/1) ... [2023-12-02 17:52:27,189 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (1/1) ... [2023-12-02 17:52:27,195 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (1/1) ... [2023-12-02 17:52:27,207 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:52:27,208 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:52:27,208 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:52:27,208 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:52:27,209 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (1/1) ... [2023-12-02 17:52:27,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:52:27,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:52:27,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:52:27,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:52:27,277 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-02 17:52:27,277 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-02 17:52:27,277 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-02 17:52:27,277 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-02 17:52:27,277 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2023-12-02 17:52:27,277 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2023-12-02 17:52:27,278 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 17:52:27,278 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 17:52:27,278 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 17:52:27,278 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 17:52:27,278 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 17:52:27,279 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 17:52:27,279 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 17:52:27,279 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 17:52:27,279 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 17:52:27,279 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 17:52:27,279 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 17:52:27,280 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 17:52:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 17:52:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 17:52:27,280 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 17:52:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 17:52:27,280 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 17:52:27,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:52:27,281 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 17:52:27,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 17:52:27,281 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-02 17:52:27,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-02 17:52:27,282 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-02 17:52:27,282 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-02 17:52:27,282 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 17:52:27,282 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 17:52:27,282 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-02 17:52:27,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-02 17:52:27,282 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 17:52:27,283 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 17:52:27,283 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 17:52:27,283 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 17:52:27,283 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-02 17:52:27,283 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-02 17:52:27,283 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 17:52:27,283 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 17:52:27,283 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 17:52:27,283 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 17:52:27,284 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 17:52:27,284 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 17:52:27,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 17:52:27,284 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 17:52:27,284 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 17:52:27,284 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-02 17:52:27,285 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-02 17:52:27,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:52:27,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:52:27,485 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:52:27,488 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:52:28,239 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:52:28,830 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:52:28,830 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 17:52:28,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:52:28 BoogieIcfgContainer [2023-12-02 17:52:28,832 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:52:28,834 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:52:28,834 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:52:28,837 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:52:28,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:52:26" (1/3) ... [2023-12-02 17:52:28,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea0892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:52:28, skipping insertion in model container [2023-12-02 17:52:28,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (2/3) ... [2023-12-02 17:52:28,839 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea0892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:52:28, skipping insertion in model container [2023-12-02 17:52:28,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:52:28" (3/3) ... [2023-12-02 17:52:28,840 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product25.cil.c [2023-12-02 17:52:28,860 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:52:28,860 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 17:52:28,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:52:28,920 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=LoopHeads, 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;@2cc68266, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:52:28,920 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 17:52:28,925 INFO L276 IsEmpty]: Start isEmpty. Operand has 201 states, 113 states have (on average 1.3097345132743363) internal successors, (148), 118 states have internal predecessors, (148), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-02 17:52:28,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 17:52:28,939 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:28,940 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] [2023-12-02 17:52:28,941 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:52:28,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:28,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1360577723, now seen corresponding path program 1 times [2023-12-02 17:52:28,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:52:28,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978922537] [2023-12-02 17:52:28,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:28,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:52:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:29,301 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:52:29,302 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:52:29,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978922537] [2023-12-02 17:52:29,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978922537] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:52:29,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:52:29,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:52:29,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572101585] [2023-12-02 17:52:29,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:52:29,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 17:52:29,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:52:29,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 17:52:29,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 17:52:29,343 INFO L87 Difference]: Start difference. First operand has 201 states, 113 states have (on average 1.3097345132743363) internal successors, (148), 118 states have internal predecessors, (148), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 17:52:29,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:52:29,473 INFO L93 Difference]: Finished difference Result 309 states and 415 transitions. [2023-12-02 17:52:29,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 17:52:29,476 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 70 [2023-12-02 17:52:29,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:52:29,488 INFO L225 Difference]: With dead ends: 309 [2023-12-02 17:52:29,489 INFO L226 Difference]: Without dead ends: 197 [2023-12-02 17:52:29,494 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 [2023-12-02 17:52:29,497 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:52:29,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 228 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:52:29,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-12-02 17:52:29,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2023-12-02 17:52:29,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 111 states have (on average 1.2792792792792793) internal successors, (142), 114 states have internal predecessors, (142), 62 states have call successors, (62), 24 states have call predecessors, (62), 23 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-02 17:52:29,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 263 transitions. [2023-12-02 17:52:29,559 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 263 transitions. Word has length 70 [2023-12-02 17:52:29,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:52:29,560 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 263 transitions. [2023-12-02 17:52:29,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 17:52:29,561 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 263 transitions. [2023-12-02 17:52:29,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 17:52:29,566 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:29,566 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] [2023-12-02 17:52:29,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 17:52:29,566 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:52:29,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:29,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1184599285, now seen corresponding path program 1 times [2023-12-02 17:52:29,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:52:29,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009235462] [2023-12-02 17:52:29,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:29,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:52:29,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:29,767 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:52:29,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:52:29,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009235462] [2023-12-02 17:52:29,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009235462] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:52:29,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:52:29,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:52:29,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269540953] [2023-12-02 17:52:29,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:52:29,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:52:29,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:52:29,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:52:29,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:52:29,772 INFO L87 Difference]: Start difference. First operand 197 states and 263 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 17:52:29,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:52:29,905 INFO L93 Difference]: Finished difference Result 304 states and 396 transitions. [2023-12-02 17:52:29,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:52:29,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2023-12-02 17:52:29,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:52:29,910 INFO L225 Difference]: With dead ends: 304 [2023-12-02 17:52:29,910 INFO L226 Difference]: Without dead ends: 199 [2023-12-02 17:52:29,912 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 [2023-12-02 17:52:29,913 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 0 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:52:29,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 449 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:52:29,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-12-02 17:52:29,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2023-12-02 17:52:29,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 113 states have (on average 1.2743362831858407) internal successors, (144), 116 states have internal predecessors, (144), 62 states have call successors, (62), 24 states have call predecessors, (62), 23 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-02 17:52:29,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 265 transitions. [2023-12-02 17:52:29,936 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 265 transitions. Word has length 71 [2023-12-02 17:52:29,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:52:29,937 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 265 transitions. [2023-12-02 17:52:29,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 17:52:29,937 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 265 transitions. [2023-12-02 17:52:29,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 17:52:29,941 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:29,941 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] [2023-12-02 17:52:29,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 17:52:29,942 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:52:29,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:29,942 INFO L85 PathProgramCache]: Analyzing trace with hash -2010058738, now seen corresponding path program 1 times [2023-12-02 17:52:29,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:52:29,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882756338] [2023-12-02 17:52:29,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:29,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:52:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:30,064 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:52:30,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:52:30,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882756338] [2023-12-02 17:52:30,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882756338] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:52:30,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:52:30,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:52:30,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722647629] [2023-12-02 17:52:30,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:52:30,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:52:30,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:52:30,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:52:30,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:52:30,067 INFO L87 Difference]: Start difference. First operand 199 states and 265 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 17:52:30,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:52:30,187 INFO L93 Difference]: Finished difference Result 433 states and 597 transitions. [2023-12-02 17:52:30,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:52:30,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 76 [2023-12-02 17:52:30,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:52:30,190 INFO L225 Difference]: With dead ends: 433 [2023-12-02 17:52:30,190 INFO L226 Difference]: Without dead ends: 252 [2023-12-02 17:52:30,191 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 [2023-12-02 17:52:30,193 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 59 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:52:30,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 455 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:52:30,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-12-02 17:52:30,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 247. [2023-12-02 17:52:30,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 147 states have (on average 1.3537414965986394) internal successors, (199), 150 states have internal predecessors, (199), 76 states have call successors, (76), 24 states have call predecessors, (76), 23 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-02 17:52:30,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 348 transitions. [2023-12-02 17:52:30,217 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 348 transitions. Word has length 76 [2023-12-02 17:52:30,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:52:30,218 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 348 transitions. [2023-12-02 17:52:30,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 17:52:30,218 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 348 transitions. [2023-12-02 17:52:30,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 17:52:30,221 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:30,221 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] [2023-12-02 17:52:30,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 17:52:30,222 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:52:30,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:30,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1763129765, now seen corresponding path program 1 times [2023-12-02 17:52:30,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:52:30,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207484504] [2023-12-02 17:52:30,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:30,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:52:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:30,412 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:52:30,412 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:52:30,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207484504] [2023-12-02 17:52:30,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207484504] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:52:30,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308451899] [2023-12-02 17:52:30,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:30,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:52:30,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:52:30,430 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:52:30,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 17:52:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:30,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 1044 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:52:30,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:52:30,832 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:52:30,833 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:52:30,900 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:52:30,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308451899] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:52:30,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1200732343] [2023-12-02 17:52:30,919 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2023-12-02 17:52:30,920 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:52:30,923 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:52:30,928 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:52:30,929 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:53:16,810 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2023-12-02 17:53:16,989 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-12-02 17:53:17,182 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:54:14,477 WARN L293 SmtUtils]: Spent 9.60s on a formula simplification. DAG size of input: 512 DAG size of output: 512 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:54:29,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1200732343] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:54:29,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:54:29,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 17:54:29,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899428386] [2023-12-02 17:54:29,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:54:29,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 17:54:29,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:54:29,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 17:54:29,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 17:54:29,309 INFO L87 Difference]: Start difference. First operand 247 states and 348 transitions. Second operand has 24 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 17:54:39,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:54:39,078 INFO L93 Difference]: Finished difference Result 541 states and 796 transitions. [2023-12-02 17:54:39,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 17:54:39,079 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 77 [2023-12-02 17:54:39,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:54:39,082 INFO L225 Difference]: With dead ends: 541 [2023-12-02 17:54:39,082 INFO L226 Difference]: Without dead ends: 312 [2023-12-02 17:54:39,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 72.1s TimeCoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 17:54:39,085 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 116 mSDsluCounter, 3189 mSDsCounter, 0 mSdLazyCounter, 2362 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 3425 SdHoareTripleChecker+Invalid, 2371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2023-12-02 17:54:39,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 3425 Invalid, 2371 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2362 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2023-12-02 17:54:39,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-12-02 17:54:39,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 270. [2023-12-02 17:54:39,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 169 states have (on average 1.3727810650887573) internal successors, (232), 172 states have internal predecessors, (232), 76 states have call successors, (76), 25 states have call predecessors, (76), 24 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-02 17:54:39,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 381 transitions. [2023-12-02 17:54:39,157 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 381 transitions. Word has length 77 [2023-12-02 17:54:39,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:54:39,158 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 381 transitions. [2023-12-02 17:54:39,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 17:54:39,158 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 381 transitions. [2023-12-02 17:54:39,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-02 17:54:39,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:54:39,161 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] [2023-12-02 17:54:39,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 17:54:39,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:54:39,366 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:54:39,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:54:39,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1999862514, now seen corresponding path program 1 times [2023-12-02 17:54:39,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:54:39,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501306058] [2023-12-02 17:54:39,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:54:39,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:54:39,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:54:39,457 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:54:39,458 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:54:39,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501306058] [2023-12-02 17:54:39,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501306058] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:54:39,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:54:39,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:54:39,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853171218] [2023-12-02 17:54:39,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:54:39,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:54:39,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:54:39,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:54:39,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:54:39,460 INFO L87 Difference]: Start difference. First operand 270 states and 381 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 17:54:39,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:54:39,660 INFO L93 Difference]: Finished difference Result 643 states and 942 transitions. [2023-12-02 17:54:39,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:54:39,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 82 [2023-12-02 17:54:39,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:54:39,664 INFO L225 Difference]: With dead ends: 643 [2023-12-02 17:54:39,664 INFO L226 Difference]: Without dead ends: 397 [2023-12-02 17:54:39,665 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 [2023-12-02 17:54:39,666 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 57 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:54:39,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 458 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:54:39,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2023-12-02 17:54:39,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 392. [2023-12-02 17:54:39,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 260 states have (on average 1.4307692307692308) internal successors, (372), 263 states have internal predecessors, (372), 107 states have call successors, (107), 25 states have call predecessors, (107), 24 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104) [2023-12-02 17:54:39,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 583 transitions. [2023-12-02 17:54:39,765 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 583 transitions. Word has length 82 [2023-12-02 17:54:39,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:54:39,765 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 583 transitions. [2023-12-02 17:54:39,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 17:54:39,766 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 583 transitions. [2023-12-02 17:54:39,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 17:54:39,769 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:54:39,769 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] [2023-12-02 17:54:39,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 17:54:39,770 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:54:39,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:54:39,770 INFO L85 PathProgramCache]: Analyzing trace with hash -552473498, now seen corresponding path program 1 times [2023-12-02 17:54:39,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:54:39,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662237647] [2023-12-02 17:54:39,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:54:39,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:54:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:54:39,930 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:54:39,931 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:54:39,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662237647] [2023-12-02 17:54:39,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662237647] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:54:39,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575191648] [2023-12-02 17:54:39,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:54:39,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:54:39,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:54:39,932 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:54:39,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 17:54:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:54:40,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:54:40,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:54:40,278 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:54:40,278 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:54:40,333 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:54:40,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575191648] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:54:40,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [327767164] [2023-12-02 17:54:40,338 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2023-12-02 17:54:40,338 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:54:40,338 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:54:40,339 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:54:40,339 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:55:45,685 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2023-12-02 17:55:45,855 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 493 for LOIs [2023-12-02 17:55:48,083 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:56:09,628 WARN L293 SmtUtils]: Spent 6.55s on a formula simplification. DAG size of input: 493 DAG size of output: 494 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:56:19,267 WARN L293 SmtUtils]: Spent 9.38s on a formula simplification. DAG size of input: 523 DAG size of output: 519 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:56:59,986 WARN L293 SmtUtils]: Spent 10.45s on a formula simplification. DAG size of input: 516 DAG size of output: 516 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:57:30,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [327767164] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:57:30,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:57:30,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 17:57:30,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524599204] [2023-12-02 17:57:30,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:57:30,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 17:57:30,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:57:30,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 17:57:30,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 17:57:30,530 INFO L87 Difference]: Start difference. First operand 392 states and 583 transitions. Second operand has 28 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2023-12-02 17:57:43,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:57:43,259 INFO L93 Difference]: Finished difference Result 802 states and 1223 transitions. [2023-12-02 17:57:43,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 17:57:43,260 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 83 [2023-12-02 17:57:43,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:57:43,263 INFO L225 Difference]: With dead ends: 802 [2023-12-02 17:57:43,263 INFO L226 Difference]: Without dead ends: 473 [2023-12-02 17:57:43,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 102.4s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 17:57:43,265 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 126 mSDsluCounter, 3016 mSDsCounter, 0 mSdLazyCounter, 2519 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 3224 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2023-12-02 17:57:43,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 3224 Invalid, 2527 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2519 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2023-12-02 17:57:43,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2023-12-02 17:57:43,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 406. [2023-12-02 17:57:43,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 272 states have (on average 1.4301470588235294) internal successors, (389), 275 states have internal predecessors, (389), 108 states have call successors, (108), 26 states have call predecessors, (108), 25 states have return successors, (105), 104 states have call predecessors, (105), 105 states have call successors, (105) [2023-12-02 17:57:43,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 602 transitions. [2023-12-02 17:57:43,383 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 602 transitions. Word has length 83 [2023-12-02 17:57:43,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:57:43,383 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 602 transitions. [2023-12-02 17:57:43,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2023-12-02 17:57:43,384 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 602 transitions. [2023-12-02 17:57:43,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 17:57:43,386 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:57:43,387 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] [2023-12-02 17:57:43,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 17:57:43,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:57:43,587 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:57:43,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:57:43,588 INFO L85 PathProgramCache]: Analyzing trace with hash 641328976, now seen corresponding path program 1 times [2023-12-02 17:57:43,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:57:43,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289874698] [2023-12-02 17:57:43,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:57:43,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:57:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:57:43,715 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:57:43,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:57:43,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289874698] [2023-12-02 17:57:43,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289874698] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:57:43,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797742612] [2023-12-02 17:57:43,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:57:43,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:57:43,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:57:43,717 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:57:43,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 17:57:44,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:57:44,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:57:44,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:57:44,064 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:57:44,064 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:57:44,121 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:57:44,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797742612] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:57:44,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2046459043] [2023-12-02 17:57:44,125 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2023-12-02 17:57:44,126 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:57:44,126 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:57:44,126 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:57:44,126 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:59:49,662 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2023-12-02 17:59:49,832 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 560 for LOIs [2023-12-02 17:59:51,678 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 569 for LOIs [2023-12-02 17:59:53,598 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 484 for LOIs [2023-12-02 17:59:54,408 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-12-02 17:59:54,581 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 18:00:55,275 WARN L293 SmtUtils]: Spent 11.56s on a formula simplification. DAG size of input: 597 DAG size of output: 592 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:01:01,015 WARN L293 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 598 DAG size of output: 590 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:01:53,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2046459043] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:01:53,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 18:01:53,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 18:01:53,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018718610] [2023-12-02 18:01:53,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:01:53,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 18:01:53,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:01:53,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 18:01:53,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 18:01:53,163 INFO L87 Difference]: Start difference. First operand 406 states and 602 transitions. Second operand has 33 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 10 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2023-12-02 18:02:16,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:02:16,833 INFO L93 Difference]: Finished difference Result 827 states and 1258 transitions. [2023-12-02 18:02:16,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 18:02:16,834 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 10 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) Word has length 86 [2023-12-02 18:02:16,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:02:16,838 INFO L225 Difference]: With dead ends: 827 [2023-12-02 18:02:16,838 INFO L226 Difference]: Without dead ends: 498 [2023-12-02 18:02:16,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 118.5s TimeCoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 18:02:16,840 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 90 mSDsluCounter, 3572 mSDsCounter, 0 mSdLazyCounter, 3582 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 3780 SdHoareTripleChecker+Invalid, 3591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2023-12-02 18:02:16,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 3780 Invalid, 3591 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 3582 Invalid, 0 Unknown, 0 Unchecked, 23.3s Time] [2023-12-02 18:02:16,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2023-12-02 18:02:17,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 442. [2023-12-02 18:02:17,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 302 states have (on average 1.4271523178807948) internal successors, (431), 305 states have internal predecessors, (431), 111 states have call successors, (111), 29 states have call predecessors, (111), 28 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2023-12-02 18:02:17,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 650 transitions. [2023-12-02 18:02:17,017 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 650 transitions. Word has length 86 [2023-12-02 18:02:17,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:02:17,018 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 650 transitions. [2023-12-02 18:02:17,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 10 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2023-12-02 18:02:17,018 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 650 transitions. [2023-12-02 18:02:17,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-02 18:02:17,020 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:02:17,021 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] [2023-12-02 18:02:17,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 18:02:17,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:02:17,221 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:02:17,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:02:17,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1148609769, now seen corresponding path program 1 times [2023-12-02 18:02:17,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:02:17,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902011330] [2023-12-02 18:02:17,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:02:17,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:02:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:02:17,325 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 18:02:17,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:02:17,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902011330] [2023-12-02 18:02:17,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902011330] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:02:17,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201838403] [2023-12-02 18:02:17,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:02:17,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:02:17,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:02:17,327 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:02:17,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1503e9-9f42-47f6-b8ed-3426580fbd85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 18:02:17,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:02:17,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:02:17,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:02:17,647 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 18:02:17,647 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:02:17,700 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 18:02:17,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201838403] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:02:17,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1811201782] [2023-12-02 18:02:17,704 INFO L159 IcfgInterpreter]: Started Sifa with 74 locations of interest [2023-12-02 18:02:17,704 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 18:02:17,704 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 18:02:17,704 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 18:02:17,705 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 18:03:58,930 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2023-12-02 18:03:59,189 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-12-02 18:03:59,365 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 18:04:58,971 WARN L293 SmtUtils]: Spent 9.86s on a formula simplification. DAG size of input: 521 DAG size of output: 521 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:05:09,819 WARN L293 SmtUtils]: Spent 10.48s on a formula simplification. DAG size of input: 521 DAG size of output: 521 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:05:21,039 WARN L293 SmtUtils]: Spent 10.87s on a formula simplification. DAG size of input: 527 DAG size of output: 527 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:05:31,874 WARN L293 SmtUtils]: Spent 10.45s on a formula simplification. DAG size of input: 525 DAG size of output: 525 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:05:42,635 WARN L293 SmtUtils]: Spent 10.33s on a formula simplification. DAG size of input: 529 DAG size of output: 529 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:05:53,778 WARN L293 SmtUtils]: Spent 10.69s on a formula simplification. DAG size of input: 527 DAG size of output: 527 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:06:04,819 WARN L293 SmtUtils]: Spent 10.54s on a formula simplification. DAG size of input: 531 DAG size of output: 531 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:06:15,741 WARN L293 SmtUtils]: Spent 10.42s on a formula simplification. DAG size of input: 529 DAG size of output: 529 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:06:38,893 WARN L293 SmtUtils]: Spent 22.53s on a formula simplification. DAG size of input: 539 DAG size of output: 529 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)