./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/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_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/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_f055a89b-8703-4b10-a77a-7ceefd73844c/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 1c7cb2243c6731bf722079adc6952447a998ab6b938202887231d0b533119871 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:45:11,041 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:45:11,106 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 13:45:11,111 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:45:11,111 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:45:11,136 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:45:11,137 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:45:11,137 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:45:11,138 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:45:11,139 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:45:11,139 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:45:11,140 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:45:11,140 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:45:11,141 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:45:11,141 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:45:11,142 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:45:11,142 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:45:11,143 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:45:11,143 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:45:11,144 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:45:11,145 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:45:11,145 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:45:11,146 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:45:11,147 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:45:11,147 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:45:11,148 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:45:11,148 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:45:11,149 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:45:11,149 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:45:11,149 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:45:11,150 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:45:11,150 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:45:11,150 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:45:11,151 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:45:11,151 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:45:11,151 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:45:11,151 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:45:11,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:45:11,152 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:45:11,152 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:45:11,152 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:45:11,153 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:45:11,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:45:11,153 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:45:11,153 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:45:11,154 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:45:11,154 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:45:11,154 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_f055a89b-8703-4b10-a77a-7ceefd73844c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c7cb2243c6731bf722079adc6952447a998ab6b938202887231d0b533119871 [2023-12-02 13:45:11,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:45:11,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:45:11,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:45:11,381 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:45:11,382 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:45:11,383 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec1_product26.cil.c [2023-12-02 13:45:16,242 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:45:16,560 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:45:16,561 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/sv-benchmarks/c/product-lines/email_spec1_product26.cil.c [2023-12-02 13:45:16,582 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/data/ee175ab28/53db1700043a42d8acb31f512e5c769b/FLAGf79620fdb [2023-12-02 13:45:16,597 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/data/ee175ab28/53db1700043a42d8acb31f512e5c769b [2023-12-02 13:45:16,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:45:16,600 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:45:16,601 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:45:16,601 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:45:16,606 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:45:16,607 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:45:16" (1/1) ... [2023-12-02 13:45:16,608 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39f79c1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:16, skipping insertion in model container [2023-12-02 13:45:16,608 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:45:16" (1/1) ... [2023-12-02 13:45:16,676 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:45:17,044 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_f055a89b-8703-4b10-a77a-7ceefd73844c/sv-benchmarks/c/product-lines/email_spec1_product26.cil.c[21785,21798] [2023-12-02 13:45:17,184 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:45:17,199 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:45:17,210 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-12-02 13:45:17,212 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [392] [2023-12-02 13:45:17,213 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [504] [2023-12-02 13:45:17,213 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [855] [2023-12-02 13:45:17,213 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [890] [2023-12-02 13:45:17,213 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1112] [2023-12-02 13:45:17,214 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1121] [2023-12-02 13:45:17,214 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2181] [2023-12-02 13:45:17,214 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [2198] [2023-12-02 13:45:17,214 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2226] [2023-12-02 13:45:17,215 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2629] [2023-12-02 13:45:17,250 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_f055a89b-8703-4b10-a77a-7ceefd73844c/sv-benchmarks/c/product-lines/email_spec1_product26.cil.c[21785,21798] [2023-12-02 13:45:17,301 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:45:17,331 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:45:17,339 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:45:17,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:17 WrapperNode [2023-12-02 13:45:17,340 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:45:17,341 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:45:17,341 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:45:17,341 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:45:17,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:17" (1/1) ... [2023-12-02 13:45:17,376 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:17" (1/1) ... [2023-12-02 13:45:17,421 INFO L138 Inliner]: procedures = 131, calls = 225, calls flagged for inlining = 60, calls inlined = 57, statements flattened = 1123 [2023-12-02 13:45:17,422 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:45:17,422 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:45:17,422 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:45:17,422 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:45:17,433 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:17" (1/1) ... [2023-12-02 13:45:17,433 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:17" (1/1) ... [2023-12-02 13:45:17,440 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:17" (1/1) ... [2023-12-02 13:45:17,441 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:17" (1/1) ... [2023-12-02 13:45:17,469 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:17" (1/1) ... [2023-12-02 13:45:17,482 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:17" (1/1) ... [2023-12-02 13:45:17,488 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:17" (1/1) ... [2023-12-02 13:45:17,495 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:17" (1/1) ... [2023-12-02 13:45:17,505 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:45:17,506 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:45:17,507 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:45:17,507 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:45:17,508 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:17" (1/1) ... [2023-12-02 13:45:17,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:45:17,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:45:17,543 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:45:17,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:45:17,599 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-02 13:45:17,599 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-02 13:45:17,600 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-02 13:45:17,600 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-02 13:45:17,600 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-02 13:45:17,600 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-02 13:45:17,600 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-02 13:45:17,601 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-02 13:45:17,601 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 13:45:17,601 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 13:45:17,601 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-12-02 13:45:17,601 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-12-02 13:45:17,602 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 13:45:17,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 13:45:17,602 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 13:45:17,602 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 13:45:17,602 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-02 13:45:17,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-02 13:45:17,603 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 13:45:17,603 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 13:45:17,603 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 13:45:17,603 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 13:45:17,604 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 13:45:17,604 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-02 13:45:17,604 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-02 13:45:17,604 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 13:45:17,604 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 13:45:17,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:45:17,605 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-02 13:45:17,605 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-02 13:45:17,605 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 13:45:17,605 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 13:45:17,606 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 13:45:17,606 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 13:45:17,606 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 13:45:17,606 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 13:45:17,606 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 13:45:17,606 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 13:45:17,606 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-02 13:45:17,607 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-02 13:45:17,607 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 13:45:17,607 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 13:45:17,629 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 13:45:17,629 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 13:45:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:45:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 13:45:17,630 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 13:45:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-02 13:45:17,630 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-02 13:45:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:45:17,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:45:17,819 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:45:17,822 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:45:18,599 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:45:19,044 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:45:19,045 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:45:19,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:45:19 BoogieIcfgContainer [2023-12-02 13:45:19,046 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:45:19,048 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:45:19,048 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:45:19,051 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:45:19,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:45:16" (1/3) ... [2023-12-02 13:45:19,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae15b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:45:19, skipping insertion in model container [2023-12-02 13:45:19,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:17" (2/3) ... [2023-12-02 13:45:19,052 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae15b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:45:19, skipping insertion in model container [2023-12-02 13:45:19,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:45:19" (3/3) ... [2023-12-02 13:45:19,053 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product26.cil.c [2023-12-02 13:45:19,069 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:45:19,069 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:45:19,116 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:45:19,122 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;@412e5bf3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:45:19,122 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:45:19,127 INFO L276 IsEmpty]: Start isEmpty. Operand has 200 states, 113 states have (on average 1.3185840707964602) internal successors, (149), 118 states have internal predecessors, (149), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-02 13:45:19,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-02 13:45:19,140 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:45:19,141 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] [2023-12-02 13:45:19,141 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:45:19,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:45:19,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1286474552, now seen corresponding path program 1 times [2023-12-02 13:45:19,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:45:19,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222935058] [2023-12-02 13:45:19,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:45:19,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:45:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:45:19,452 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 13:45:19,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:45:19,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222935058] [2023-12-02 13:45:19,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222935058] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:45:19,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:45:19,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:45:19,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960358473] [2023-12-02 13:45:19,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:45:19,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 13:45:19,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:45:19,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 13:45:19,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:45:19,491 INFO L87 Difference]: Start difference. First operand has 200 states, 113 states have (on average 1.3185840707964602) internal successors, (149), 118 states have internal predecessors, (149), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 13:45:19,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:45:19,632 INFO L93 Difference]: Finished difference Result 308 states and 417 transitions. [2023-12-02 13:45:19,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 13:45:19,635 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2023-12-02 13:45:19,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:45:19,647 INFO L225 Difference]: With dead ends: 308 [2023-12-02 13:45:19,648 INFO L226 Difference]: Without dead ends: 197 [2023-12-02 13:45:19,653 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 13:45:19,657 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:45:19,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 230 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:45:19,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-12-02 13:45:19,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2023-12-02 13:45:19,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 111 states have (on average 1.2882882882882882) internal successors, (143), 115 states have internal predecessors, (143), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2023-12-02 13:45:19,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 266 transitions. [2023-12-02 13:45:19,717 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 266 transitions. Word has length 63 [2023-12-02 13:45:19,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:45:19,718 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 266 transitions. [2023-12-02 13:45:19,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 13:45:19,719 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 266 transitions. [2023-12-02 13:45:19,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 13:45:19,723 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:45:19,723 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] [2023-12-02 13:45:19,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:45:19,724 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:45:19,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:45:19,725 INFO L85 PathProgramCache]: Analyzing trace with hash -2067601738, now seen corresponding path program 1 times [2023-12-02 13:45:19,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:45:19,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577139503] [2023-12-02 13:45:19,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:45:19,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:45:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:45:19,930 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 13:45:19,931 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:45:19,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577139503] [2023-12-02 13:45:19,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577139503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:45:19,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:45:19,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:45:19,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336801421] [2023-12-02 13:45:19,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:45:19,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:45:19,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:45:19,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:45:19,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:45:19,935 INFO L87 Difference]: Start difference. First operand 197 states and 266 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 13:45:20,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:45:20,064 INFO L93 Difference]: Finished difference Result 304 states and 402 transitions. [2023-12-02 13:45:20,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:45:20,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 64 [2023-12-02 13:45:20,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:45:20,069 INFO L225 Difference]: With dead ends: 304 [2023-12-02 13:45:20,069 INFO L226 Difference]: Without dead ends: 199 [2023-12-02 13:45:20,070 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 13:45:20,072 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 0 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:45:20,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 453 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:45:20,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-12-02 13:45:20,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2023-12-02 13:45:20,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 113 states have (on average 1.2831858407079646) internal successors, (145), 117 states have internal predecessors, (145), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2023-12-02 13:45:20,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 268 transitions. [2023-12-02 13:45:20,097 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 268 transitions. Word has length 64 [2023-12-02 13:45:20,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:45:20,098 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 268 transitions. [2023-12-02 13:45:20,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 13:45:20,098 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 268 transitions. [2023-12-02 13:45:20,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-02 13:45:20,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:45:20,102 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] [2023-12-02 13:45:20,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 13:45:20,102 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:45:20,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:45:20,103 INFO L85 PathProgramCache]: Analyzing trace with hash 626237155, now seen corresponding path program 1 times [2023-12-02 13:45:20,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:45:20,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736229741] [2023-12-02 13:45:20,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:45:20,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:45:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:45:20,221 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 13:45:20,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:45:20,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736229741] [2023-12-02 13:45:20,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736229741] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:45:20,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:45:20,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:45:20,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432298934] [2023-12-02 13:45:20,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:45:20,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:45:20,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:45:20,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:45:20,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:45:20,224 INFO L87 Difference]: Start difference. First operand 199 states and 268 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 13:45:20,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:45:20,355 INFO L93 Difference]: Finished difference Result 433 states and 603 transitions. [2023-12-02 13:45:20,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:45:20,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 69 [2023-12-02 13:45:20,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:45:20,359 INFO L225 Difference]: With dead ends: 433 [2023-12-02 13:45:20,360 INFO L226 Difference]: Without dead ends: 252 [2023-12-02 13:45:20,361 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 13:45:20,363 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 59 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:45:20,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 464 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:45:20,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-12-02 13:45:20,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 247. [2023-12-02 13:45:20,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 147 states have (on average 1.3605442176870748) internal successors, (200), 151 states have internal predecessors, (200), 76 states have call successors, (76), 23 states have call predecessors, (76), 23 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2023-12-02 13:45:20,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 351 transitions. [2023-12-02 13:45:20,390 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 351 transitions. Word has length 69 [2023-12-02 13:45:20,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:45:20,390 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 351 transitions. [2023-12-02 13:45:20,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 13:45:20,390 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 351 transitions. [2023-12-02 13:45:20,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 13:45:20,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:45:20,393 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] [2023-12-02 13:45:20,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 13:45:20,394 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:45:20,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:45:20,394 INFO L85 PathProgramCache]: Analyzing trace with hash 256714217, now seen corresponding path program 1 times [2023-12-02 13:45:20,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:45:20,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222561082] [2023-12-02 13:45:20,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:45:20,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:45:20,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:45:20,623 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 13:45:20,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:45:20,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222561082] [2023-12-02 13:45:20,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222561082] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:45:20,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908433168] [2023-12-02 13:45:20,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:45:20,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:45:20,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:45:20,626 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:45:20,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 13:45:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:45:20,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 965 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:45:20,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:45:21,054 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 13:45:21,054 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:45:21,123 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 13:45:21,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908433168] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:45:21,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [380874457] [2023-12-02 13:45:21,148 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2023-12-02 13:45:21,149 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:45:21,152 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:45:21,158 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:45:21,159 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:46:07,074 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2023-12-02 13:46:07,242 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-12-02 13:46:07,406 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:47:02,763 WARN L293 SmtUtils]: Spent 9.11s on a formula simplification. DAG size of input: 498 DAG size of output: 498 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:47:12,291 WARN L293 SmtUtils]: Spent 9.23s on a formula simplification. DAG size of input: 499 DAG size of output: 498 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:47:22,480 WARN L293 SmtUtils]: Spent 9.83s on a formula simplification. DAG size of input: 505 DAG size of output: 504 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:47:32,557 WARN L293 SmtUtils]: Spent 9.68s on a formula simplification. DAG size of input: 503 DAG size of output: 502 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:47:36,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [380874457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:47:36,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:47:36,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 13:47:36,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91000495] [2023-12-02 13:47:36,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:47:36,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 13:47:36,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:47:36,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 13:47:36,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 13:47:36,182 INFO L87 Difference]: Start difference. First operand 247 states and 351 transitions. Second operand has 24 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2023-12-02 13:47:49,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:47:49,828 INFO L93 Difference]: Finished difference Result 541 states and 802 transitions. [2023-12-02 13:47:49,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 13:47:49,829 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 70 [2023-12-02 13:47:49,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:47:49,832 INFO L225 Difference]: With dead ends: 541 [2023-12-02 13:47:49,832 INFO L226 Difference]: Without dead ends: 312 [2023-12-02 13:47:49,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 88.8s TimeCoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 13:47:49,834 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 58 mSDsluCounter, 3554 mSDsCounter, 0 mSdLazyCounter, 2781 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3800 SdHoareTripleChecker+Invalid, 2790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:47:49,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3800 Invalid, 2790 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2781 Invalid, 0 Unknown, 0 Unchecked, 13.4s Time] [2023-12-02 13:47:49,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-12-02 13:47:49,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 270. [2023-12-02 13:47:49,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 169 states have (on average 1.378698224852071) internal successors, (233), 173 states have internal predecessors, (233), 76 states have call successors, (76), 24 states have call predecessors, (76), 24 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2023-12-02 13:47:49,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 384 transitions. [2023-12-02 13:47:49,928 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 384 transitions. Word has length 70 [2023-12-02 13:47:49,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:47:49,928 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 384 transitions. [2023-12-02 13:47:49,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2023-12-02 13:47:49,929 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 384 transitions. [2023-12-02 13:47:49,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 13:47:49,931 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:47:49,932 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] [2023-12-02 13:47:49,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:47:50,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:47:50,137 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:47:50,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:47:50,138 INFO L85 PathProgramCache]: Analyzing trace with hash -2094957628, now seen corresponding path program 1 times [2023-12-02 13:47:50,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:47:50,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011305464] [2023-12-02 13:47:50,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:47:50,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:47:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:47:50,226 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 13:47:50,226 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:47:50,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011305464] [2023-12-02 13:47:50,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011305464] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:47:50,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:47:50,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:47:50,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094554295] [2023-12-02 13:47:50,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:47:50,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:47:50,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:47:50,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:47:50,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:47:50,229 INFO L87 Difference]: Start difference. First operand 270 states and 384 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 13:47:50,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:47:50,443 INFO L93 Difference]: Finished difference Result 643 states and 948 transitions. [2023-12-02 13:47:50,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:47:50,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 75 [2023-12-02 13:47:50,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:47:50,447 INFO L225 Difference]: With dead ends: 643 [2023-12-02 13:47:50,448 INFO L226 Difference]: Without dead ends: 397 [2023-12-02 13:47:50,449 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 13:47:50,450 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 57 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:47:50,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 465 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:47:50,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2023-12-02 13:47:50,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 392. [2023-12-02 13:47:50,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 260 states have (on average 1.4346153846153846) internal successors, (373), 264 states have internal predecessors, (373), 107 states have call successors, (107), 24 states have call predecessors, (107), 24 states have return successors, (106), 105 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-02 13:47:50,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 586 transitions. [2023-12-02 13:47:50,564 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 586 transitions. Word has length 75 [2023-12-02 13:47:50,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:47:50,565 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 586 transitions. [2023-12-02 13:47:50,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 13:47:50,565 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 586 transitions. [2023-12-02 13:47:50,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 13:47:50,567 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:47:50,567 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] [2023-12-02 13:47:50,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 13:47:50,567 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:47:50,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:47:50,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1013188557, now seen corresponding path program 1 times [2023-12-02 13:47:50,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:47:50,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882132695] [2023-12-02 13:47:50,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:47:50,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:47:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:47:50,706 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 13:47:50,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:47:50,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882132695] [2023-12-02 13:47:50,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882132695] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:47:50,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921738679] [2023-12-02 13:47:50,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:47:50,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:47:50,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:47:50,711 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:47:50,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 13:47:51,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:47:51,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 992 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:47:51,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:47:51,039 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 13:47:51,039 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:47:51,091 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 13:47:51,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921738679] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:47:51,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [489160471] [2023-12-02 13:47:51,095 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2023-12-02 13:47:51,095 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:47:51,096 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:47:51,096 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:47:51,096 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:48:57,521 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2023-12-02 13:48:57,688 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 249 for LOIs [2023-12-02 13:48:57,922 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:49:53,386 WARN L293 SmtUtils]: Spent 9.23s on a formula simplification. DAG size of input: 501 DAG size of output: 501 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:50:03,227 WARN L293 SmtUtils]: Spent 9.51s on a formula simplification. DAG size of input: 502 DAG size of output: 501 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:50:13,588 WARN L293 SmtUtils]: Spent 9.98s on a formula simplification. DAG size of input: 508 DAG size of output: 507 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:50:23,705 WARN L293 SmtUtils]: Spent 9.73s on a formula simplification. DAG size of input: 506 DAG size of output: 505 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:50:44,966 WARN L293 SmtUtils]: Spent 20.76s on a formula simplification. DAG size of input: 516 DAG size of output: 505 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:51:08,165 WARN L293 SmtUtils]: Spent 22.67s on a formula simplification. DAG size of input: 514 DAG size of output: 503 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:51:20,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [489160471] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:51:20,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:51:20,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 13:51:20,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272339753] [2023-12-02 13:51:20,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:51:20,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 13:51:20,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:51:20,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 13:51:20,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 13:51:20,442 INFO L87 Difference]: Start difference. First operand 392 states and 586 transitions. Second operand has 28 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2023-12-02 13:51:37,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:51:37,056 INFO L93 Difference]: Finished difference Result 802 states and 1229 transitions. [2023-12-02 13:51:37,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 13:51:37,057 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 76 [2023-12-02 13:51:37,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:51:37,062 INFO L225 Difference]: With dead ends: 802 [2023-12-02 13:51:37,062 INFO L226 Difference]: Without dead ends: 473 [2023-12-02 13:51:37,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 142.5s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 13:51:37,066 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 126 mSDsluCounter, 3181 mSDsCounter, 0 mSdLazyCounter, 2730 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 3394 SdHoareTripleChecker+Invalid, 2738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:51:37,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 3394 Invalid, 2738 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2730 Invalid, 0 Unknown, 0 Unchecked, 16.2s Time] [2023-12-02 13:51:37,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2023-12-02 13:51:37,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 406. [2023-12-02 13:51:37,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 272 states have (on average 1.4338235294117647) internal successors, (390), 276 states have internal predecessors, (390), 108 states have call successors, (108), 25 states have call predecessors, (108), 25 states have return successors, (107), 106 states have call predecessors, (107), 107 states have call successors, (107) [2023-12-02 13:51:37,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 605 transitions. [2023-12-02 13:51:37,291 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 605 transitions. Word has length 76 [2023-12-02 13:51:37,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:51:37,292 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 605 transitions. [2023-12-02 13:51:37,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2023-12-02 13:51:37,292 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 605 transitions. [2023-12-02 13:51:37,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 13:51:37,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:51:37,296 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] [2023-12-02 13:51:37,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 13:51:37,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:51:37,497 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:51:37,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:51:37,497 INFO L85 PathProgramCache]: Analyzing trace with hash -18011333, now seen corresponding path program 1 times [2023-12-02 13:51:37,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:51:37,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982541909] [2023-12-02 13:51:37,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:51:37,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:51:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:51:37,718 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 13:51:37,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:51:37,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982541909] [2023-12-02 13:51:37,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982541909] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:51:37,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172355755] [2023-12-02 13:51:37,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:51:37,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:51:37,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:51:37,721 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:51:37,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 13:51:38,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:51:38,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:51:38,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:51:38,107 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 13:51:38,108 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:51:38,162 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 13:51:38,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172355755] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:51:38,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1285376331] [2023-12-02 13:51:38,166 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2023-12-02 13:51:38,166 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:51:38,167 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:51:38,167 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:51:38,167 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:53:07,298 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2023-12-02 13:53:07,488 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 537 for LOIs [2023-12-02 13:53:09,578 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 546 for LOIs [2023-12-02 13:53:11,609 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 469 for LOIs [2023-12-02 13:53:12,227 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-12-02 13:53:12,392 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:54:10,377 WARN L293 SmtUtils]: Spent 11.48s on a formula simplification. DAG size of input: 574 DAG size of output: 569 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:54:22,003 WARN L293 SmtUtils]: Spent 11.24s on a formula simplification. DAG size of input: 575 DAG size of output: 569 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:55:11,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1285376331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:55:11,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:55:11,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 13:55:11,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877552964] [2023-12-02 13:55:11,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:55:11,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 13:55:11,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:55:11,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 13:55:11,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 13:55:11,137 INFO L87 Difference]: Start difference. First operand 406 states and 605 transitions. Second operand has 33 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2023-12-02 13:55:35,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:55:35,908 INFO L93 Difference]: Finished difference Result 827 states and 1264 transitions. [2023-12-02 13:55:35,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 13:55:35,908 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) Word has length 79 [2023-12-02 13:55:35,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:55:35,912 INFO L225 Difference]: With dead ends: 827 [2023-12-02 13:55:35,912 INFO L226 Difference]: Without dead ends: 498 [2023-12-02 13:55:35,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 118.7s TimeCoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 13:55:35,914 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 90 mSDsluCounter, 3884 mSDsCounter, 0 mSdLazyCounter, 3943 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 4097 SdHoareTripleChecker+Invalid, 3952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:55:35,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 4097 Invalid, 3952 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 3943 Invalid, 0 Unknown, 0 Unchecked, 24.4s Time] [2023-12-02 13:55:35,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2023-12-02 13:55:36,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 442. [2023-12-02 13:55:36,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 302 states have (on average 1.4304635761589404) internal successors, (432), 306 states have internal predecessors, (432), 111 states have call successors, (111), 28 states have call predecessors, (111), 28 states have return successors, (110), 109 states have call predecessors, (110), 110 states have call successors, (110) [2023-12-02 13:55:36,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 653 transitions. [2023-12-02 13:55:36,085 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 653 transitions. Word has length 79 [2023-12-02 13:55:36,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:55:36,085 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 653 transitions. [2023-12-02 13:55:36,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2023-12-02 13:55:36,085 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 653 transitions. [2023-12-02 13:55:36,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 13:55:36,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:55:36,087 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] [2023-12-02 13:55:36,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 13:55:36,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:55:36,288 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:55:36,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:55:36,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1792340901, now seen corresponding path program 1 times [2023-12-02 13:55:36,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:55:36,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000985296] [2023-12-02 13:55:36,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:55:36,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:55:36,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:55:36,430 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 13:55:36,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:55:36,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000985296] [2023-12-02 13:55:36,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000985296] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:55:36,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197722028] [2023-12-02 13:55:36,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:55:36,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:55:36,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:55:36,432 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:55:36,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f055a89b-8703-4b10-a77a-7ceefd73844c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 13:55:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:55:36,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 989 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:55:36,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:55:36,751 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 13:55:36,751 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:55:36,804 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 13:55:36,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197722028] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:55:36,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1065148667] [2023-12-02 13:55:36,808 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2023-12-02 13:55:36,808 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:55:36,809 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:55:36,809 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:55:36,809 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:57:14,497 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2023-12-02 13:57:14,660 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-12-02 13:57:14,835 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:58:10,078 WARN L293 SmtUtils]: Spent 9.36s on a formula simplification. DAG size of input: 506 DAG size of output: 506 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:58:19,736 WARN L293 SmtUtils]: Spent 9.37s on a formula simplification. DAG size of input: 507 DAG size of output: 506 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:58:29,760 WARN L293 SmtUtils]: Spent 9.67s on a formula simplification. DAG size of input: 513 DAG size of output: 512 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:58:40,191 WARN L293 SmtUtils]: Spent 10.07s on a formula simplification. DAG size of input: 511 DAG size of output: 510 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:59:01,667 WARN L293 SmtUtils]: Spent 21.01s on a formula simplification. DAG size of input: 521 DAG size of output: 510 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:59:22,995 WARN L293 SmtUtils]: Spent 20.83s on a formula simplification. DAG size of input: 519 DAG size of output: 508 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)