./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product29.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_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/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_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/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_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/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 e2402328b10acba07d45e1b6bd18216e1645c73446d4739f1dc37852ed64162e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:50:16,997 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:50:17,065 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 12:50:17,070 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:50:17,070 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:50:17,093 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:50:17,094 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:50:17,094 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:50:17,095 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:50:17,095 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:50:17,096 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:50:17,097 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:50:17,097 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:50:17,098 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 12:50:17,098 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:50:17,099 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:50:17,099 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 12:50:17,100 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 12:50:17,100 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:50:17,101 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 12:50:17,102 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 12:50:17,102 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 12:50:17,103 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:50:17,103 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:50:17,112 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 12:50:17,113 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 12:50:17,113 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 12:50:17,114 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:50:17,114 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:50:17,114 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:50:17,115 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:50:17,115 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 12:50:17,116 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:50:17,116 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:50:17,116 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:50:17,117 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:50:17,117 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:50:17,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:50:17,117 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:50:17,118 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:50:17,118 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:50:17,118 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 12:50:17,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 12:50:17,118 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:50:17,119 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:50:17,119 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:50:17,119 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:50:17,119 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_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2402328b10acba07d45e1b6bd18216e1645c73446d4739f1dc37852ed64162e [2023-12-02 12:50:17,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:50:17,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:50:17,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:50:17,366 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:50:17,366 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:50:17,367 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec9_product29.cil.c [2023-12-02 12:50:20,130 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:50:20,411 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:50:20,412 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/sv-benchmarks/c/product-lines/email_spec9_product29.cil.c [2023-12-02 12:50:20,439 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/data/2c24ed687/7b7b242cd4e245868a29ce5f1138ff3f/FLAGa6b503956 [2023-12-02 12:50:20,453 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/data/2c24ed687/7b7b242cd4e245868a29ce5f1138ff3f [2023-12-02 12:50:20,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:50:20,457 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:50:20,458 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:50:20,458 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:50:20,463 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:50:20,464 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:50:20" (1/1) ... [2023-12-02 12:50:20,465 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2305b97a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:20, skipping insertion in model container [2023-12-02 12:50:20,465 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:50:20" (1/1) ... [2023-12-02 12:50:20,542 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:50:21,028 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_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/sv-benchmarks/c/product-lines/email_spec9_product29.cil.c[65089,65102] [2023-12-02 12:50:21,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:50:21,047 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:50:21,058 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2023-12-02 12:50:21,059 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [97] [2023-12-02 12:50:21,059 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptForward_spec.i","") [246] [2023-12-02 12:50:21,060 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [290] [2023-12-02 12:50:21,060 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [674] [2023-12-02 12:50:21,060 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [691] [2023-12-02 12:50:21,060 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1057] [2023-12-02 12:50:21,061 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1282] [2023-12-02 12:50:21,061 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1679] [2023-12-02 12:50:21,061 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2752] [2023-12-02 12:50:21,061 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3030] [2023-12-02 12:50:21,148 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_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/sv-benchmarks/c/product-lines/email_spec9_product29.cil.c[65089,65102] [2023-12-02 12:50:21,148 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:50:21,177 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 12:50:21,185 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:50:21,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:21 WrapperNode [2023-12-02 12:50:21,185 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:50:21,186 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:50:21,186 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:50:21,187 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:50:21,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:21" (1/1) ... [2023-12-02 12:50:21,220 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:21" (1/1) ... [2023-12-02 12:50:21,265 INFO L138 Inliner]: procedures = 132, calls = 232, calls flagged for inlining = 56, calls inlined = 48, statements flattened = 966 [2023-12-02 12:50:21,266 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:50:21,266 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:50:21,267 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:50:21,267 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:50:21,276 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:21" (1/1) ... [2023-12-02 12:50:21,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:21" (1/1) ... [2023-12-02 12:50:21,282 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:21" (1/1) ... [2023-12-02 12:50:21,283 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:21" (1/1) ... [2023-12-02 12:50:21,302 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:21" (1/1) ... [2023-12-02 12:50:21,312 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:21" (1/1) ... [2023-12-02 12:50:21,319 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:21" (1/1) ... [2023-12-02 12:50:21,323 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:21" (1/1) ... [2023-12-02 12:50:21,333 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:50:21,334 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:50:21,334 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:50:21,334 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:50:21,335 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:21" (1/1) ... [2023-12-02 12:50:21,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:50:21,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:50:21,369 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:50:21,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:50:21,412 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-02 12:50:21,412 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-02 12:50:21,412 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-02 12:50:21,412 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-02 12:50:21,412 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-02 12:50:21,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-02 12:50:21,413 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-02 12:50:21,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-02 12:50:21,413 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-02 12:50:21,413 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-02 12:50:21,413 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 12:50:21,413 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 12:50:21,414 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 12:50:21,414 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 12:50:21,414 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 12:50:21,414 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 12:50:21,414 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 12:50:21,414 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 12:50:21,414 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-02 12:50:21,415 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-02 12:50:21,415 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 12:50:21,415 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 12:50:21,415 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 12:50:21,415 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 12:50:21,415 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 12:50:21,416 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 12:50:21,416 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 12:50:21,416 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 12:50:21,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 12:50:21,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:50:21,416 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 12:50:21,416 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 12:50:21,416 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-02 12:50:21,417 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-02 12:50:21,417 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-02 12:50:21,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-02 12:50:21,417 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 12:50:21,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 12:50:21,417 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 12:50:21,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 12:50:21,417 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 12:50:21,418 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 12:50:21,418 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-02 12:50:21,418 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-02 12:50:21,418 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2023-12-02 12:50:21,418 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2023-12-02 12:50:21,418 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 12:50:21,418 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 12:50:21,418 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-02 12:50:21,418 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-02 12:50:21,419 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 12:50:21,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 12:50:21,419 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 12:50:21,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 12:50:21,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 12:50:21,419 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 12:50:21,419 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 12:50:21,420 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-02 12:50:21,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-02 12:50:21,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:50:21,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:50:21,635 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:50:21,638 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:50:22,348 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:50:22,936 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:50:22,936 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 12:50:22,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:50:22 BoogieIcfgContainer [2023-12-02 12:50:22,938 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:50:22,941 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:50:22,941 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:50:22,944 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:50:22,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:50:20" (1/3) ... [2023-12-02 12:50:22,945 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32daff00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:50:22, skipping insertion in model container [2023-12-02 12:50:22,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:21" (2/3) ... [2023-12-02 12:50:22,945 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32daff00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:50:22, skipping insertion in model container [2023-12-02 12:50:22,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:50:22" (3/3) ... [2023-12-02 12:50:22,947 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product29.cil.c [2023-12-02 12:50:22,967 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:50:22,967 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 12:50:23,020 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:50:23,027 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;@58bbeab8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:50:23,027 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 12:50:23,033 INFO L276 IsEmpty]: Start isEmpty. Operand has 213 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 125 states have internal predecessors, (157), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2023-12-02 12:50:23,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 12:50:23,046 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:50:23,047 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:50:23,048 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:50:23,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:50:23,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1945849668, now seen corresponding path program 1 times [2023-12-02 12:50:23,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:50:23,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497224922] [2023-12-02 12:50:23,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:50:23,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:50:23,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:50:23,380 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 12:50:23,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:50:23,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497224922] [2023-12-02 12:50:23,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497224922] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:50:23,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:50:23,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 12:50:23,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466661352] [2023-12-02 12:50:23,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:50:23,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 12:50:23,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:50:23,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 12:50:23,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 12:50:23,421 INFO L87 Difference]: Start difference. First operand has 213 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 125 states have internal predecessors, (157), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 12:50:23,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:50:23,553 INFO L93 Difference]: Finished difference Result 334 states and 437 transitions. [2023-12-02 12:50:23,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 12:50:23,555 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2023-12-02 12:50:23,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:50:23,567 INFO L225 Difference]: With dead ends: 334 [2023-12-02 12:50:23,567 INFO L226 Difference]: Without dead ends: 210 [2023-12-02 12:50:23,572 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 12:50:23,576 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:50:23,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 241 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:50:23,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-12-02 12:50:23,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2023-12-02 12:50:23,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 118 states have (on average 1.2796610169491525) internal successors, (151), 122 states have internal predecessors, (151), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-02 12:50:23,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 276 transitions. [2023-12-02 12:50:23,636 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 276 transitions. Word has length 71 [2023-12-02 12:50:23,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:50:23,637 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 276 transitions. [2023-12-02 12:50:23,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 12:50:23,638 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 276 transitions. [2023-12-02 12:50:23,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 12:50:23,642 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:50:23,642 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:50:23,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 12:50:23,643 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:50:23,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:50:23,644 INFO L85 PathProgramCache]: Analyzing trace with hash 2084992693, now seen corresponding path program 1 times [2023-12-02 12:50:23,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:50:23,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392099635] [2023-12-02 12:50:23,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:50:23,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:50:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:50:23,857 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 12:50:23,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:50:23,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392099635] [2023-12-02 12:50:23,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392099635] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:50:23,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:50:23,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:50:23,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404061462] [2023-12-02 12:50:23,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:50:23,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:50:23,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:50:23,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:50:23,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:50:23,861 INFO L87 Difference]: Start difference. First operand 210 states and 276 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 12:50:23,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:50:23,980 INFO L93 Difference]: Finished difference Result 330 states and 422 transitions. [2023-12-02 12:50:23,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:50:23,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2023-12-02 12:50:23,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:50:23,984 INFO L225 Difference]: With dead ends: 330 [2023-12-02 12:50:23,984 INFO L226 Difference]: Without dead ends: 212 [2023-12-02 12:50:23,985 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 12:50:23,987 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 0 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:50:23,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 475 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:50:23,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-12-02 12:50:24,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2023-12-02 12:50:24,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 120 states have (on average 1.275) internal successors, (153), 124 states have internal predecessors, (153), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-02 12:50:24,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 278 transitions. [2023-12-02 12:50:24,011 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 278 transitions. Word has length 72 [2023-12-02 12:50:24,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:50:24,011 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 278 transitions. [2023-12-02 12:50:24,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 12:50:24,012 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 278 transitions. [2023-12-02 12:50:24,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 12:50:24,016 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:50:24,016 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:50:24,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 12:50:24,016 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:50:24,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:50:24,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1467874737, now seen corresponding path program 1 times [2023-12-02 12:50:24,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:50:24,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122891803] [2023-12-02 12:50:24,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:50:24,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:50:24,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:50:24,140 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 12:50:24,140 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:50:24,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122891803] [2023-12-02 12:50:24,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122891803] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:50:24,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:50:24,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:50:24,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413767329] [2023-12-02 12:50:24,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:50:24,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:50:24,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:50:24,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:50:24,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:50:24,143 INFO L87 Difference]: Start difference. First operand 212 states and 278 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 12:50:24,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:50:24,260 INFO L93 Difference]: Finished difference Result 459 states and 623 transitions. [2023-12-02 12:50:24,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:50:24,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2023-12-02 12:50:24,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:50:24,264 INFO L225 Difference]: With dead ends: 459 [2023-12-02 12:50:24,264 INFO L226 Difference]: Without dead ends: 265 [2023-12-02 12:50:24,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:50:24,266 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 59 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 488 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 12:50:24,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 488 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:50:24,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-12-02 12:50:24,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 260. [2023-12-02 12:50:24,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 154 states have (on average 1.3506493506493507) internal successors, (208), 158 states have internal predecessors, (208), 77 states have call successors, (77), 28 states have call predecessors, (77), 28 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-02 12:50:24,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 361 transitions. [2023-12-02 12:50:24,293 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 361 transitions. Word has length 77 [2023-12-02 12:50:24,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:50:24,294 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 361 transitions. [2023-12-02 12:50:24,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 12:50:24,294 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 361 transitions. [2023-12-02 12:50:24,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 12:50:24,297 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:50:24,297 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 12:50:24,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 12:50:24,297 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:50:24,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:50:24,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1866496638, now seen corresponding path program 1 times [2023-12-02 12:50:24,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:50:24,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295922247] [2023-12-02 12:50:24,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:50:24,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:50:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:50:24,486 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 12:50:24,487 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:50:24,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295922247] [2023-12-02 12:50:24,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295922247] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:50:24,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341884241] [2023-12-02 12:50:24,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:50:24,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:50:24,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:50:24,492 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:50:24,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 12:50:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:50:24,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 12:50:24,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:50:24,913 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 12:50:24,914 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:50:24,978 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 12:50:24,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341884241] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:50:24,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [910734448] [2023-12-02 12:50:25,000 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2023-12-02 12:50:25,000 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 12:50:25,004 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 12:50:25,009 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 12:50:25,010 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 12:51:09,605 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 237 for LOIs [2023-12-02 12:51:09,920 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2023-12-02 12:51:10,172 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 12:52:09,532 WARN L293 SmtUtils]: Spent 9.69s on a formula simplification. DAG size of input: 520 DAG size of output: 520 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:52:19,625 WARN L293 SmtUtils]: Spent 9.79s on a formula simplification. DAG size of input: 520 DAG size of output: 520 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:52:29,921 WARN L293 SmtUtils]: Spent 9.96s on a formula simplification. DAG size of input: 522 DAG size of output: 522 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:52:40,253 WARN L293 SmtUtils]: Spent 9.98s on a formula simplification. DAG size of input: 520 DAG size of output: 520 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:52:44,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [910734448] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:52:44,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 12:52:44,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 12:52:44,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771991895] [2023-12-02 12:52:44,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:52:44,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 12:52:44,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:52:44,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 12:52:44,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2023-12-02 12:52:44,073 INFO L87 Difference]: Start difference. First operand 260 states and 361 transitions. Second operand has 24 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 12:53:05,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:53:05,361 INFO L93 Difference]: Finished difference Result 567 states and 822 transitions. [2023-12-02 12:53:05,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 12:53:05,362 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 78 [2023-12-02 12:53:05,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:53:05,366 INFO L225 Difference]: With dead ends: 567 [2023-12-02 12:53:05,366 INFO L226 Difference]: Without dead ends: 325 [2023-12-02 12:53:05,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 100.8s TimeCoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2023-12-02 12:53:05,369 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 114 mSDsluCounter, 3212 mSDsCounter, 0 mSdLazyCounter, 3002 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 3468 SdHoareTripleChecker+Invalid, 3013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:53:05,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 3468 Invalid, 3013 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 3002 Invalid, 0 Unknown, 0 Unchecked, 14.1s Time] [2023-12-02 12:53:05,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2023-12-02 12:53:05,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 283. [2023-12-02 12:53:05,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 176 states have (on average 1.3693181818181819) internal successors, (241), 180 states have internal predecessors, (241), 77 states have call successors, (77), 29 states have call predecessors, (77), 29 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-02 12:53:05,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 394 transitions. [2023-12-02 12:53:05,457 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 394 transitions. Word has length 78 [2023-12-02 12:53:05,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:53:05,458 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 394 transitions. [2023-12-02 12:53:05,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 12:53:05,458 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 394 transitions. [2023-12-02 12:53:05,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 12:53:05,461 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:53:05,461 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:53:05,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 12:53:05,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:53:05,667 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:53:05,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:53:05,668 INFO L85 PathProgramCache]: Analyzing trace with hash 828659465, now seen corresponding path program 1 times [2023-12-02 12:53:05,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:53:05,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617190452] [2023-12-02 12:53:05,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:53:05,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:53:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:53:05,761 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 12:53:05,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:53:05,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617190452] [2023-12-02 12:53:05,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617190452] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:53:05,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:53:05,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:53:05,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789444372] [2023-12-02 12:53:05,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:53:05,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:53:05,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:53:05,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:53:05,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:53:05,764 INFO L87 Difference]: Start difference. First operand 283 states and 394 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 12:53:05,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:53:05,971 INFO L93 Difference]: Finished difference Result 669 states and 968 transitions. [2023-12-02 12:53:05,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:53:05,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 83 [2023-12-02 12:53:05,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:53:05,976 INFO L225 Difference]: With dead ends: 669 [2023-12-02 12:53:05,976 INFO L226 Difference]: Without dead ends: 410 [2023-12-02 12:53:05,977 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 12:53:05,978 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 57 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:53:05,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 488 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:53:05,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2023-12-02 12:53:06,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 405. [2023-12-02 12:53:06,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 267 states have (on average 1.4269662921348314) internal successors, (381), 271 states have internal predecessors, (381), 108 states have call successors, (108), 29 states have call predecessors, (108), 29 states have return successors, (107), 106 states have call predecessors, (107), 107 states have call successors, (107) [2023-12-02 12:53:06,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 596 transitions. [2023-12-02 12:53:06,083 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 596 transitions. Word has length 83 [2023-12-02 12:53:06,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:53:06,083 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 596 transitions. [2023-12-02 12:53:06,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 12:53:06,084 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 596 transitions. [2023-12-02 12:53:06,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 12:53:06,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:53:06,087 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:53:06,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 12:53:06,087 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:53:06,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:53:06,088 INFO L85 PathProgramCache]: Analyzing trace with hash -149705571, now seen corresponding path program 1 times [2023-12-02 12:53:06,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:53:06,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150555360] [2023-12-02 12:53:06,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:53:06,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:53:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:53:06,234 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 12:53:06,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:53:06,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150555360] [2023-12-02 12:53:06,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150555360] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:53:06,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554103158] [2023-12-02 12:53:06,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:53:06,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:53:06,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:53:06,236 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:53:06,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 12:53:06,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:53:06,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 1061 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 12:53:06,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:53:06,561 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 12:53:06,561 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:53:06,614 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 12:53:06,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554103158] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:53:06,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1252698290] [2023-12-02 12:53:06,618 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2023-12-02 12:53:06,618 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 12:53:06,619 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 12:53:06,619 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 12:53:06,619 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 12:54:08,625 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 237 for LOIs [2023-12-02 12:54:08,847 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 497 for LOIs [2023-12-02 12:54:10,984 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 12:54:32,992 WARN L293 SmtUtils]: Spent 6.63s on a formula simplification. DAG size of input: 497 DAG size of output: 498 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:54:43,024 WARN L293 SmtUtils]: Spent 9.85s on a formula simplification. DAG size of input: 527 DAG size of output: 523 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:55:24,834 WARN L293 SmtUtils]: Spent 10.09s on a formula simplification. DAG size of input: 524 DAG size of output: 524 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:55:34,742 WARN L293 SmtUtils]: Spent 9.57s on a formula simplification. DAG size of input: 524 DAG size of output: 524 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:55:45,221 WARN L293 SmtUtils]: Spent 10.11s on a formula simplification. DAG size of input: 526 DAG size of output: 526 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:55:55,327 WARN L293 SmtUtils]: Spent 9.73s on a formula simplification. DAG size of input: 524 DAG size of output: 524 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:56:14,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1252698290] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:56:14,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 12:56:14,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 12:56:14,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852129098] [2023-12-02 12:56:14,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:56:14,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 12:56:14,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:56:14,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 12:56:14,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=941, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 12:56:14,836 INFO L87 Difference]: Start difference. First operand 405 states and 596 transitions. Second operand has 28 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2023-12-02 12:56:34,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:56:34,247 INFO L93 Difference]: Finished difference Result 828 states and 1249 transitions. [2023-12-02 12:56:34,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 12:56:34,247 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 84 [2023-12-02 12:56:34,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:56:34,250 INFO L225 Difference]: With dead ends: 828 [2023-12-02 12:56:34,251 INFO L226 Difference]: Without dead ends: 486 [2023-12-02 12:56:34,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 127.3s TimeCoverageRelationStatistics Valid=120, Invalid=1002, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 12:56:34,252 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 76 mSDsluCounter, 3251 mSDsCounter, 0 mSdLazyCounter, 3065 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 3470 SdHoareTripleChecker+Invalid, 3074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2023-12-02 12:56:34,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 3470 Invalid, 3074 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 3065 Invalid, 0 Unknown, 0 Unchecked, 15.6s Time] [2023-12-02 12:56:34,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2023-12-02 12:56:34,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 419. [2023-12-02 12:56:34,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 279 states have (on average 1.4265232974910393) internal successors, (398), 283 states have internal predecessors, (398), 109 states have call successors, (109), 30 states have call predecessors, (109), 30 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2023-12-02 12:56:34,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 615 transitions. [2023-12-02 12:56:34,367 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 615 transitions. Word has length 84 [2023-12-02 12:56:34,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:56:34,368 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 615 transitions. [2023-12-02 12:56:34,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2023-12-02 12:56:34,368 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 615 transitions. [2023-12-02 12:56:34,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-02 12:56:34,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:56:34,370 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:56:34,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 12:56:34,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 12:56:34,571 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:56:34,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:56:34,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1467643554, now seen corresponding path program 1 times [2023-12-02 12:56:34,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:56:34,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060965496] [2023-12-02 12:56:34,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:56:34,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:56:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:56:34,742 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 12:56:34,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:56:34,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060965496] [2023-12-02 12:56:34,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060965496] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:56:34,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864255368] [2023-12-02 12:56:34,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:56:34,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:56:34,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:56:34,744 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:56:34,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 12:56:35,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:56:35,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 12:56:35,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:56:35,077 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 12:56:35,078 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:56:35,139 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 12:56:35,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864255368] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:56:35,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1807965192] [2023-12-02 12:56:35,143 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2023-12-02 12:56:35,143 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 12:56:35,144 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 12:56:35,144 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 12:56:35,144 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 12:58:06,130 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 237 for LOIs [2023-12-02 12:58:06,344 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 564 for LOIs [2023-12-02 12:58:08,282 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 647 for LOIs [2023-12-02 12:58:13,330 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 488 for LOIs [2023-12-02 12:58:14,228 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2023-12-02 12:58:14,441 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 12:59:15,340 WARN L293 SmtUtils]: Spent 11.83s on a formula simplification. DAG size of input: 605 DAG size of output: 600 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:59:27,463 WARN L293 SmtUtils]: Spent 11.72s on a formula simplification. DAG size of input: 605 DAG size of output: 600 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:00:02,028 WARN L293 SmtUtils]: Spent 9.48s on a formula simplification. DAG size of input: 647 DAG size of output: 639 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:00:12,255 WARN L293 SmtUtils]: Spent 9.68s on a formula simplification. DAG size of input: 653 DAG size of output: 645 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:00:30,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1807965192] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:00:30,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:00:30,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 13:00:30,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156844644] [2023-12-02 13:00:30,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:00:30,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 13:00:30,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:00:30,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 13:00:30,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1291, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 13:00:30,965 INFO L87 Difference]: Start difference. First operand 419 states and 615 transitions. Second operand has 33 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2023-12-02 13:01:06,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:01:06,414 INFO L93 Difference]: Finished difference Result 853 states and 1284 transitions. [2023-12-02 13:01:06,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 13:01:06,415 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) Word has length 87 [2023-12-02 13:01:06,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:01:06,420 INFO L225 Difference]: With dead ends: 853 [2023-12-02 13:01:06,420 INFO L226 Difference]: Without dead ends: 511 [2023-12-02 13:01:06,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 143.5s TimeCoverageRelationStatistics Valid=124, Invalid=1436, Unknown=0, NotChecked=0, Total=1560 [2023-12-02 13:01:06,423 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 90 mSDsluCounter, 3679 mSDsCounter, 0 mSdLazyCounter, 4344 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 3900 SdHoareTripleChecker+Invalid, 4355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 4344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:01:06,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 3900 Invalid, 4355 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 4344 Invalid, 0 Unknown, 0 Unchecked, 28.0s Time] [2023-12-02 13:01:06,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2023-12-02 13:01:06,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 455. [2023-12-02 13:01:06,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 309 states have (on average 1.4239482200647249) internal successors, (440), 313 states have internal predecessors, (440), 112 states have call successors, (112), 33 states have call predecessors, (112), 33 states have return successors, (111), 110 states have call predecessors, (111), 111 states have call successors, (111) [2023-12-02 13:01:06,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 663 transitions. [2023-12-02 13:01:06,626 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 663 transitions. Word has length 87 [2023-12-02 13:01:06,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:01:06,627 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 663 transitions. [2023-12-02 13:01:06,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2023-12-02 13:01:06,627 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 663 transitions. [2023-12-02 13:01:06,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 13:01:06,629 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:01:06,630 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:01:06,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 13:01:06,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-12-02 13:01:06,830 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:01:06,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:01:06,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1585965061, now seen corresponding path program 1 times [2023-12-02 13:01:06,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:01:06,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779531879] [2023-12-02 13:01:06,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:01:06,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:01:06,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:01:06,959 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 13:01:06,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:01:06,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779531879] [2023-12-02 13:01:06,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779531879] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:01:06,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095123195] [2023-12-02 13:01:06,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:01:06,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:01:06,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:01:06,961 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:01:06,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b4eaeb-60dc-4ed5-9b0c-81e96e944340/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 13:01:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:01:07,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:01:07,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:01:07,284 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 13:01:07,284 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:01:07,341 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 13:01:07,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095123195] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:01:07,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1807488537] [2023-12-02 13:01:07,345 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2023-12-02 13:01:07,345 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:01:07,346 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:01:07,346 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:01:07,346 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:02:43,450 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 237 for LOIs [2023-12-02 13:02:43,667 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2023-12-02 13:02:43,881 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:03:44,288 WARN L293 SmtUtils]: Spent 10.17s on a formula simplification. DAG size of input: 528 DAG size of output: 528 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:03:54,704 WARN L293 SmtUtils]: Spent 10.08s on a formula simplification. DAG size of input: 528 DAG size of output: 528 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:04:05,041 WARN L293 SmtUtils]: Spent 10.00s on a formula simplification. DAG size of input: 530 DAG size of output: 530 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:04:15,588 WARN L293 SmtUtils]: Spent 10.18s on a formula simplification. DAG size of input: 528 DAG size of output: 528 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:04:37,985 WARN L293 SmtUtils]: Spent 21.92s on a formula simplification. DAG size of input: 540 DAG size of output: 530 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)