./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje --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 b01b58381ce8e0150d6e0f0de264371fec0586e2ead4f1a313de13afba1fd67c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:26:47,459 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:26:47,563 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 01:26:47,573 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:26:47,573 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:26:47,613 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:26:47,616 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:26:47,616 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:26:47,617 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:26:47,618 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:26:47,619 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:26:47,619 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:26:47,620 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:26:47,622 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:26:47,624 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:26:47,624 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:26:47,625 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:26:47,625 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:26:47,625 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:26:47,626 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:26:47,626 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:26:47,627 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:26:47,628 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:26:47,628 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:26:47,629 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:26:47,629 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:26:47,630 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:26:47,630 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:26:47,631 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:26:47,631 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:26:47,640 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:26:47,641 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:26:47,642 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:26:47,642 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:26:47,643 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:26:47,643 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:26:47,644 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:26:47,644 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:26:47,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:26:47,645 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:26:47,645 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:26:47,646 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:26:47,646 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:26:47,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:26:47,647 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:26:47,647 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:26:47,648 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:26:47,648 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_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b01b58381ce8e0150d6e0f0de264371fec0586e2ead4f1a313de13afba1fd67c [2024-11-09 01:26:48,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:26:48,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:26:48,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:26:48,041 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:26:48,043 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:26:48,045 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/product-lines/email_spec8_product22.cil.c Unable to find full path for "g++" [2024-11-09 01:26:50,271 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:26:50,614 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:26:50,615 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/sv-benchmarks/c/product-lines/email_spec8_product22.cil.c [2024-11-09 01:26:50,644 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/data/89b71020d/da64443746bb47c98c191ea14f42a4fa/FLAGfa7602338 [2024-11-09 01:26:50,866 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/data/89b71020d/da64443746bb47c98c191ea14f42a4fa [2024-11-09 01:26:50,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:26:50,871 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:26:50,872 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:26:50,873 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:26:50,880 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:26:50,881 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:26:50" (1/1) ... [2024-11-09 01:26:50,882 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@760d025b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:50, skipping insertion in model container [2024-11-09 01:26:50,882 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:26:50" (1/1) ... [2024-11-09 01:26:50,976 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:26:51,598 WARN L250 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_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/sv-benchmarks/c/product-lines/email_spec8_product22.cil.c[29813,29826] [2024-11-09 01:26:51,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:26:51,850 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:26:51,865 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-11-09 01:26:51,867 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [375] [2024-11-09 01:26:51,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [787] [2024-11-09 01:26:51,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1006] [2024-11-09 01:26:51,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1372] [2024-11-09 01:26:51,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1381] [2024-11-09 01:26:51,869 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1398] [2024-11-09 01:26:51,869 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1704] [2024-11-09 01:26:51,869 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1739] [2024-11-09 01:26:51,870 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2804] [2024-11-09 01:26:51,870 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptAutoResponder_spec.i","") [2907] [2024-11-09 01:26:51,931 WARN L250 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_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/sv-benchmarks/c/product-lines/email_spec8_product22.cil.c[29813,29826] [2024-11-09 01:26:51,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:26:52,028 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:26:52,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:52 WrapperNode [2024-11-09 01:26:52,029 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:26:52,030 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:26:52,030 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:26:52,030 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:26:52,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:52" (1/1) ... [2024-11-09 01:26:52,075 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:52" (1/1) ... [2024-11-09 01:26:52,181 INFO L138 Inliner]: procedures = 129, calls = 193, calls flagged for inlining = 60, calls inlined = 55, statements flattened = 1037 [2024-11-09 01:26:52,181 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:26:52,182 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:26:52,182 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:26:52,182 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:26:52,209 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:52" (1/1) ... [2024-11-09 01:26:52,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:52" (1/1) ... [2024-11-09 01:26:52,250 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:52" (1/1) ... [2024-11-09 01:26:52,251 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:52" (1/1) ... [2024-11-09 01:26:52,276 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:52" (1/1) ... [2024-11-09 01:26:52,287 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:52" (1/1) ... [2024-11-09 01:26:52,292 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:52" (1/1) ... [2024-11-09 01:26:52,301 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:52" (1/1) ... [2024-11-09 01:26:52,316 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:26:52,321 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:26:52,321 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:26:52,321 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:26:52,322 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:52" (1/1) ... [2024-11-09 01:26:52,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:26:52,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:26:52,390 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:26:52,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:26:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-09 01:26:52,435 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-09 01:26:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-09 01:26:52,436 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-09 01:26:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-09 01:26:52,436 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-09 01:26:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-09 01:26:52,437 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-09 01:26:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-09 01:26:52,437 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-09 01:26:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-09 01:26:52,438 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-09 01:26:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-09 01:26:52,438 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-09 01:26:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-09 01:26:52,438 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-09 01:26:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-09 01:26:52,439 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-09 01:26:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-09 01:26:52,439 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-09 01:26:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:26:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-09 01:26:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-09 01:26:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-09 01:26:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-09 01:26:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-09 01:26:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-09 01:26:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-09 01:26:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-09 01:26:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-09 01:26:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-09 01:26:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-09 01:26:52,442 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-09 01:26:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-09 01:26:52,442 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-09 01:26:52,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:26:52,443 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-09 01:26:52,443 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-09 01:26:52,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:26:52,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:26:52,789 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:26:52,793 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:26:53,930 INFO L? ?]: Removed 439 outVars from TransFormulas that were not future-live. [2024-11-09 01:26:53,930 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:26:54,704 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:26:54,705 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 01:26:54,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:26:54 BoogieIcfgContainer [2024-11-09 01:26:54,706 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:26:54,709 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:26:54,709 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:26:54,712 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:26:54,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:26:50" (1/3) ... [2024-11-09 01:26:54,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c90dfa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:26:54, skipping insertion in model container [2024-11-09 01:26:54,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:52" (2/3) ... [2024-11-09 01:26:54,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c90dfa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:26:54, skipping insertion in model container [2024-11-09 01:26:54,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:26:54" (3/3) ... [2024-11-09 01:26:54,715 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product22.cil.c [2024-11-09 01:26:54,734 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:26:54,735 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 01:26:54,823 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:26:54,831 INFO L333 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, 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;@70492acd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:26:54,832 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 01:26:54,837 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 100 states have (on average 1.35) internal successors, (135), 104 states have internal predecessors, (135), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-09 01:26:54,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 01:26:54,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:26:54,854 INFO L215 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] [2024-11-09 01:26:54,855 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:26:54,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:26:54,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1252609004, now seen corresponding path program 1 times [2024-11-09 01:26:54,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:26:54,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013681296] [2024-11-09 01:26:54,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:54,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:26:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:26:55,280 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:26:55,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:26:55,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013681296] [2024-11-09 01:26:55,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013681296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:26:55,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:26:55,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:26:55,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384800237] [2024-11-09 01:26:55,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:26:55,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 01:26:55,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:26:55,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 01:26:55,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:26:55,320 INFO L87 Difference]: Start difference. First operand has 170 states, 100 states have (on average 1.35) internal successors, (135), 104 states have internal predecessors, (135), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 01:26:55,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:26:55,501 INFO L93 Difference]: Finished difference Result 257 states and 348 transitions. [2024-11-09 01:26:55,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 01:26:55,504 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2024-11-09 01:26:55,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:26:55,518 INFO L225 Difference]: With dead ends: 257 [2024-11-09 01:26:55,519 INFO L226 Difference]: Without dead ends: 167 [2024-11-09 01:26:55,525 INFO L431 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 [2024-11-09 01:26:55,530 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:26:55,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 198 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:26:55,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-09 01:26:55,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-11-09 01:26:55,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 98 states have (on average 1.316326530612245) internal successors, (129), 101 states have internal predecessors, (129), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-09 01:26:55,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 228 transitions. [2024-11-09 01:26:55,584 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 228 transitions. Word has length 56 [2024-11-09 01:26:55,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:26:55,586 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 228 transitions. [2024-11-09 01:26:55,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 01:26:55,586 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 228 transitions. [2024-11-09 01:26:55,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-09 01:26:55,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:26:55,590 INFO L215 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] [2024-11-09 01:26:55,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 01:26:55,591 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:26:55,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:26:55,591 INFO L85 PathProgramCache]: Analyzing trace with hash -2012222966, now seen corresponding path program 1 times [2024-11-09 01:26:55,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:26:55,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832620934] [2024-11-09 01:26:55,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:55,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:26:55,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:26:55,871 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:26:55,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:26:55,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832620934] [2024-11-09 01:26:55,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832620934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:26:55,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:26:55,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:26:55,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129175637] [2024-11-09 01:26:55,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:26:55,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:26:55,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:26:55,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:26:55,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:26:55,879 INFO L87 Difference]: Start difference. First operand 167 states and 228 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 01:26:56,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:26:56,074 INFO L93 Difference]: Finished difference Result 253 states and 336 transitions. [2024-11-09 01:26:56,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:26:56,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 57 [2024-11-09 01:26:56,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:26:56,078 INFO L225 Difference]: With dead ends: 253 [2024-11-09 01:26:56,078 INFO L226 Difference]: Without dead ends: 169 [2024-11-09 01:26:56,079 INFO L431 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 [2024-11-09 01:26:56,080 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 0 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:26:56,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 389 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:26:56,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-09 01:26:56,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2024-11-09 01:26:56,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 100 states have (on average 1.31) internal successors, (131), 103 states have internal predecessors, (131), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-09 01:26:56,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 230 transitions. [2024-11-09 01:26:56,101 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 230 transitions. Word has length 57 [2024-11-09 01:26:56,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:26:56,102 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 230 transitions. [2024-11-09 01:26:56,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 01:26:56,102 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 230 transitions. [2024-11-09 01:26:56,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 01:26:56,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:26:56,105 INFO L215 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] [2024-11-09 01:26:56,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 01:26:56,106 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:26:56,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:26:56,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1146477337, now seen corresponding path program 1 times [2024-11-09 01:26:56,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:26:56,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774214125] [2024-11-09 01:26:56,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:56,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:26:56,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:26:56,220 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:26:56,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:26:56,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774214125] [2024-11-09 01:26:56,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774214125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:26:56,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:26:56,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:26:56,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271400152] [2024-11-09 01:26:56,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:26:56,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:26:56,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:26:56,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:26:56,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:26:56,224 INFO L87 Difference]: Start difference. First operand 169 states and 230 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 01:26:56,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:26:56,344 INFO L93 Difference]: Finished difference Result 368 states and 519 transitions. [2024-11-09 01:26:56,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:26:56,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 62 [2024-11-09 01:26:56,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:26:56,347 INFO L225 Difference]: With dead ends: 368 [2024-11-09 01:26:56,348 INFO L226 Difference]: Without dead ends: 217 [2024-11-09 01:26:56,349 INFO L431 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 [2024-11-09 01:26:56,350 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 57 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:26:56,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 383 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:26:56,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-09 01:26:56,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 212. [2024-11-09 01:26:56,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 132 states have (on average 1.393939393939394) internal successors, (184), 135 states have internal predecessors, (184), 61 states have call successors, (61), 18 states have call predecessors, (61), 18 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-09 01:26:56,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 305 transitions. [2024-11-09 01:26:56,382 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 305 transitions. Word has length 62 [2024-11-09 01:26:56,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:26:56,384 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 305 transitions. [2024-11-09 01:26:56,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 01:26:56,385 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 305 transitions. [2024-11-09 01:26:56,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 01:26:56,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:26:56,391 INFO L215 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] [2024-11-09 01:26:56,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 01:26:56,391 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:26:56,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:26:56,392 INFO L85 PathProgramCache]: Analyzing trace with hash -233028579, now seen corresponding path program 1 times [2024-11-09 01:26:56,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:26:56,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518779029] [2024-11-09 01:26:56,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:56,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:26:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:26:56,653 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:26:56,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:26:56,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518779029] [2024-11-09 01:26:56,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518779029] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:26:56,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510814636] [2024-11-09 01:26:56,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:56,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:26:56,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:26:56,659 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:26:56,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 01:26:57,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:26:57,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 794 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:26:57,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:26:57,224 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:26:57,226 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:26:57,335 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:26:57,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510814636] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:26:57,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1173943326] [2024-11-09 01:26:57,363 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2024-11-09 01:26:57,364 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:26:57,369 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:26:57,375 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:26:57,379 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:27:31,081 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 228 for LOIs [2024-11-09 01:27:31,257 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 227 for LOIs [2024-11-09 01:27:31,447 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:28:44,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1173943326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:28:44,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:28:44,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-09 01:28:44,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339602087] [2024-11-09 01:28:44,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:28:44,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 01:28:44,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:28:44,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 01:28:44,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-09 01:28:44,391 INFO L87 Difference]: Start difference. First operand 212 states and 305 transitions. Second operand has 23 states, 15 states have (on average 2.2) internal successors, (33), 14 states have internal predecessors, (33), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-09 01:28:52,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:28:52,897 INFO L93 Difference]: Finished difference Result 438 states and 646 transitions. [2024-11-09 01:28:52,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 01:28:52,898 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 2.2) internal successors, (33), 14 states have internal predecessors, (33), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 63 [2024-11-09 01:28:52,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:28:52,901 INFO L225 Difference]: With dead ends: 438 [2024-11-09 01:28:52,901 INFO L226 Difference]: Without dead ends: 244 [2024-11-09 01:28:52,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 72.9s TimeCoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-09 01:28:52,904 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 25 mSDsluCounter, 2510 mSDsCounter, 0 mSdLazyCounter, 1723 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2688 SdHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:28:52,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2688 Invalid, 1732 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1723 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2024-11-09 01:28:52,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-09 01:28:52,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 235. [2024-11-09 01:28:52,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 154 states have (on average 1.4090909090909092) internal successors, (217), 157 states have internal predecessors, (217), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-09 01:28:52,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 338 transitions. [2024-11-09 01:28:52,977 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 338 transitions. Word has length 63 [2024-11-09 01:28:52,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:28:52,978 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 338 transitions. [2024-11-09 01:28:52,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 2.2) internal successors, (33), 14 states have internal predecessors, (33), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-09 01:28:52,979 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 338 transitions. [2024-11-09 01:28:52,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 01:28:52,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:28:52,981 INFO L215 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] [2024-11-09 01:28:53,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 01:28:53,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-09 01:28:53,182 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:28:53,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:28:53,184 INFO L85 PathProgramCache]: Analyzing trace with hash 260932622, now seen corresponding path program 1 times [2024-11-09 01:28:53,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:28:53,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442278303] [2024-11-09 01:28:53,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:28:53,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:28:53,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:28:53,368 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 01:28:53,368 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:28:53,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442278303] [2024-11-09 01:28:53,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442278303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:28:53,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:28:53,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:28:53,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485802969] [2024-11-09 01:28:53,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:28:53,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:28:53,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:28:53,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:28:53,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:28:53,371 INFO L87 Difference]: Start difference. First operand 235 states and 338 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 01:28:53,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:28:53,711 INFO L93 Difference]: Finished difference Result 563 states and 840 transitions. [2024-11-09 01:28:53,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:28:53,712 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 68 [2024-11-09 01:28:53,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:28:53,717 INFO L225 Difference]: With dead ends: 563 [2024-11-09 01:28:53,717 INFO L226 Difference]: Without dead ends: 352 [2024-11-09 01:28:53,718 INFO L431 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 [2024-11-09 01:28:53,720 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 55 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:28:53,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 405 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:28:53,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-11-09 01:28:53,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 347. [2024-11-09 01:28:53,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 241 states have (on average 1.4647302904564314) internal successors, (353), 244 states have internal predecessors, (353), 86 states have call successors, (86), 19 states have call predecessors, (86), 19 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-09 01:28:53,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 524 transitions. [2024-11-09 01:28:53,843 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 524 transitions. Word has length 68 [2024-11-09 01:28:53,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:28:53,844 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 524 transitions. [2024-11-09 01:28:53,844 INFO L472 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 01:28:53,844 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 524 transitions. [2024-11-09 01:28:53,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 01:28:53,848 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:28:53,849 INFO L215 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] [2024-11-09 01:28:53,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 01:28:53,849 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:28:53,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:28:53,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1525981535, now seen corresponding path program 1 times [2024-11-09 01:28:53,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:28:53,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868217439] [2024-11-09 01:28:53,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:28:53,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:28:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:28:54,022 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 01:28:54,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:28:54,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868217439] [2024-11-09 01:28:54,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868217439] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:28:54,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393137817] [2024-11-09 01:28:54,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:28:54,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:28:54,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:28:54,027 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:28:54,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 01:28:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:28:54,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:28:54,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:28:54,435 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 01:28:54,436 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:28:54,519 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 01:28:54,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393137817] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:28:54,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1392042817] [2024-11-09 01:28:54,524 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-09 01:28:54,524 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:28:54,527 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:28:54,527 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:28:54,527 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:29:41,109 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 228 for LOIs [2024-11-09 01:29:41,244 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 437 for LOIs [2024-11-09 01:29:42,579 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:30:09,226 WARN L286 SmtUtils]: Spent 8.37s on a formula simplification. DAG size of input: 437 DAG size of output: 437 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:30:21,159 WARN L286 SmtUtils]: Spent 11.49s on a formula simplification. DAG size of input: 461 DAG size of output: 457 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:31:23,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1392042817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:31:23,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:31:23,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-09 01:31:23,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191603594] [2024-11-09 01:31:23,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:31:23,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 01:31:23,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:31:23,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 01:31:23,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-09 01:31:23,044 INFO L87 Difference]: Start difference. First operand 347 states and 524 transitions. Second operand has 26 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-09 01:31:35,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:31:35,466 INFO L93 Difference]: Finished difference Result 702 states and 1087 transitions. [2024-11-09 01:31:35,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-09 01:31:35,468 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 69 [2024-11-09 01:31:35,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:31:35,471 INFO L225 Difference]: With dead ends: 702 [2024-11-09 01:31:35,472 INFO L226 Difference]: Without dead ends: 418 [2024-11-09 01:31:35,473 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 100.4s TimeCoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-09 01:31:35,474 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 41 mSDsluCounter, 2841 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3017 SdHoareTripleChecker+Invalid, 2392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:31:35,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3017 Invalid, 2392 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2024-11-09 01:31:35,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-11-09 01:31:35,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 361. [2024-11-09 01:31:35,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 253 states have (on average 1.4624505928853755) internal successors, (370), 256 states have internal predecessors, (370), 87 states have call successors, (87), 20 states have call predecessors, (87), 20 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-09 01:31:35,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 543 transitions. [2024-11-09 01:31:35,606 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 543 transitions. Word has length 69 [2024-11-09 01:31:35,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:31:35,607 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 543 transitions. [2024-11-09 01:31:35,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-09 01:31:35,607 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 543 transitions. [2024-11-09 01:31:35,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 01:31:35,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:31:35,610 INFO L215 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] [2024-11-09 01:31:35,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 01:31:35,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 01:31:35,810 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:31:35,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:31:35,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1481083250, now seen corresponding path program 1 times [2024-11-09 01:31:35,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:31:35,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077415414] [2024-11-09 01:31:35,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:31:35,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:31:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:31:36,025 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:31:36,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:31:36,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077415414] [2024-11-09 01:31:36,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077415414] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:31:36,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116768779] [2024-11-09 01:31:36,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:31:36,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:31:36,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:31:36,033 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:31:36,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 01:31:36,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:31:36,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 879 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:31:36,428 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:31:36,469 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:31:36,470 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:31:36,577 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:31:36,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116768779] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:31:36,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1170798783] [2024-11-09 01:31:36,584 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2024-11-09 01:31:36,589 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:31:36,589 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:31:36,590 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:31:36,590 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:32:36,050 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 228 for LOIs [2024-11-09 01:32:36,188 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 483 for LOIs [2024-11-09 01:32:37,123 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 428 for LOIs [2024-11-09 01:32:37,468 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 227 for LOIs [2024-11-09 01:32:37,590 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 492 for LOIs [2024-11-09 01:32:38,624 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:33:41,107 WARN L286 SmtUtils]: Spent 13.05s on a formula simplification. DAG size of input: 512 DAG size of output: 507 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:33:55,351 WARN L286 SmtUtils]: Spent 13.45s on a formula simplification. DAG size of input: 513 DAG size of output: 507 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:34:17,435 WARN L286 SmtUtils]: Spent 5.58s on a formula simplification. DAG size of input: 493 DAG size of output: 493 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:34:23,928 WARN L286 SmtUtils]: Spent 5.86s on a formula simplification. DAG size of input: 498 DAG size of output: 494 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:34:30,147 WARN L286 SmtUtils]: Spent 5.71s on a formula simplification. DAG size of input: 492 DAG size of output: 488 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:34:36,310 WARN L286 SmtUtils]: Spent 5.67s on a formula simplification. DAG size of input: 492 DAG size of output: 488 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:34:42,428 WARN L286 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 488 DAG size of output: 484 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:34:48,409 WARN L286 SmtUtils]: Spent 5.34s on a formula simplification. DAG size of input: 483 DAG size of output: 479 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:34:54,585 WARN L286 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 483 DAG size of output: 479 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:35:00,670 WARN L286 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 479 DAG size of output: 475 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:35:00,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1170798783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:35:00,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:35:00,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-09 01:35:00,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181401130] [2024-11-09 01:35:00,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:35:00,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-09 01:35:00,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:35:00,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-09 01:35:00,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 01:35:00,678 INFO L87 Difference]: Start difference. First operand 361 states and 543 transitions. Second operand has 33 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2024-11-09 01:35:18,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:35:18,293 INFO L93 Difference]: Finished difference Result 727 states and 1122 transitions. [2024-11-09 01:35:18,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-09 01:35:18,294 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) Word has length 72 [2024-11-09 01:35:18,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:35:18,297 INFO L225 Difference]: With dead ends: 727 [2024-11-09 01:35:18,298 INFO L226 Difference]: Without dead ends: 443 [2024-11-09 01:35:18,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 142.1s TimeCoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 01:35:18,301 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 75 mSDsluCounter, 2977 mSDsCounter, 0 mSdLazyCounter, 2943 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 3151 SdHoareTripleChecker+Invalid, 2952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:35:18,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 3151 Invalid, 2952 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2943 Invalid, 0 Unknown, 0 Unchecked, 17.3s Time] [2024-11-09 01:35:18,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-09 01:35:18,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 397. [2024-11-09 01:35:18,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 283 states have (on average 1.4558303886925794) internal successors, (412), 286 states have internal predecessors, (412), 90 states have call successors, (90), 23 states have call predecessors, (90), 23 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-09 01:35:18,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 591 transitions. [2024-11-09 01:35:18,504 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 591 transitions. Word has length 72 [2024-11-09 01:35:18,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:35:18,505 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 591 transitions. [2024-11-09 01:35:18,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2024-11-09 01:35:18,505 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 591 transitions. [2024-11-09 01:35:18,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 01:35:18,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:35:18,508 INFO L215 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] [2024-11-09 01:35:18,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 01:35:18,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-09 01:35:18,713 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:35:18,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:35:18,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1032545668, now seen corresponding path program 1 times [2024-11-09 01:35:18,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:35:18,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4609899] [2024-11-09 01:35:18,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:35:18,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:35:18,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:35:18,862 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:35:18,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:35:18,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4609899] [2024-11-09 01:35:18,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4609899] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:35:18,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757793593] [2024-11-09 01:35:18,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:35:18,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:35:18,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:35:18,866 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:35:18,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 01:35:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:35:19,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:35:19,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:35:19,283 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:35:19,283 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:35:19,376 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:35:19,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757793593] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:35:19,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1265866501] [2024-11-09 01:35:19,380 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2024-11-09 01:35:19,380 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:35:19,381 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:35:19,381 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:35:19,381 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:35:58,813 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 228 for LOIs [2024-11-09 01:35:58,948 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 227 for LOIs [2024-11-09 01:35:59,087 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:37:29,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1265866501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:37:29,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:37:29,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-09 01:37:29,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131478338] [2024-11-09 01:37:29,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:37:29,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 01:37:29,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:37:29,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 01:37:29,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-09 01:37:29,445 INFO L87 Difference]: Start difference. First operand 397 states and 591 transitions. Second operand has 27 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-09 01:37:39,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:37:39,828 INFO L93 Difference]: Finished difference Result 729 states and 1113 transitions. [2024-11-09 01:37:39,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 01:37:39,829 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 71 [2024-11-09 01:37:39,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:37:39,833 INFO L225 Difference]: With dead ends: 729 [2024-11-09 01:37:39,834 INFO L226 Difference]: Without dead ends: 445 [2024-11-09 01:37:39,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 90.4s TimeCoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-09 01:37:39,836 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 17 mSDsluCounter, 2709 mSDsCounter, 0 mSdLazyCounter, 2218 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2877 SdHoareTripleChecker+Invalid, 2226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:37:39,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2877 Invalid, 2226 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2218 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2024-11-09 01:37:39,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-11-09 01:37:40,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 417. [2024-11-09 01:37:40,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 303 states have (on average 1.4587458745874586) internal successors, (442), 306 states have internal predecessors, (442), 90 states have call successors, (90), 23 states have call predecessors, (90), 23 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-09 01:37:40,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 621 transitions. [2024-11-09 01:37:40,075 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 621 transitions. Word has length 71 [2024-11-09 01:37:40,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:37:40,075 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 621 transitions. [2024-11-09 01:37:40,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-09 01:37:40,076 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 621 transitions. [2024-11-09 01:37:40,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 01:37:40,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:37:40,078 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:37:40,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 01:37:40,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-09 01:37:40,279 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:37:40,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:37:40,280 INFO L85 PathProgramCache]: Analyzing trace with hash 743714843, now seen corresponding path program 1 times [2024-11-09 01:37:40,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:37:40,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316018055] [2024-11-09 01:37:40,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:37:40,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:37:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:37:40,527 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-09 01:37:40,527 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:37:40,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316018055] [2024-11-09 01:37:40,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316018055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:37:40,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:37:40,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:37:40,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500369070] [2024-11-09 01:37:40,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:37:40,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:37:40,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:37:40,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:37:40,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:37:40,530 INFO L87 Difference]: Start difference. First operand 417 states and 621 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 01:37:40,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:37:40,868 INFO L93 Difference]: Finished difference Result 521 states and 746 transitions. [2024-11-09 01:37:40,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:37:40,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 74 [2024-11-09 01:37:40,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:37:40,872 INFO L225 Difference]: With dead ends: 521 [2024-11-09 01:37:40,872 INFO L226 Difference]: Without dead ends: 439 [2024-11-09 01:37:40,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:37:40,875 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 119 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:37:40,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 267 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:37:40,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-09 01:37:41,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2024-11-09 01:37:41,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 315 states have (on average 1.4412698412698413) internal successors, (454), 318 states have internal predecessors, (454), 94 states have call successors, (94), 30 states have call predecessors, (94), 29 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-09 01:37:41,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 641 transitions. [2024-11-09 01:37:41,126 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 641 transitions. Word has length 74 [2024-11-09 01:37:41,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:37:41,126 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 641 transitions. [2024-11-09 01:37:41,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 01:37:41,127 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 641 transitions. [2024-11-09 01:37:41,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-09 01:37:41,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:37:41,131 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:37:41,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 01:37:41,131 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:37:41,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:37:41,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1334917612, now seen corresponding path program 1 times [2024-11-09 01:37:41,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:37:41,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13155540] [2024-11-09 01:37:41,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:37:41,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:37:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:37:41,567 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-09 01:37:41,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:37:41,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13155540] [2024-11-09 01:37:41,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13155540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:37:41,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:37:41,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:37:41,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114904951] [2024-11-09 01:37:41,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:37:41,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:37:41,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:37:41,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:37:41,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:37:41,570 INFO L87 Difference]: Start difference. First operand 439 states and 641 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-09 01:37:42,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:37:42,397 INFO L93 Difference]: Finished difference Result 593 states and 829 transitions. [2024-11-09 01:37:42,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:37:42,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 107 [2024-11-09 01:37:42,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:37:42,402 INFO L225 Difference]: With dead ends: 593 [2024-11-09 01:37:42,403 INFO L226 Difference]: Without dead ends: 469 [2024-11-09 01:37:42,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:37:42,404 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 184 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:37:42,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 417 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 01:37:42,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-11-09 01:37:42,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 466. [2024-11-09 01:37:42,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 329 states have (on average 1.419452887537994) internal successors, (467), 333 states have internal predecessors, (467), 100 states have call successors, (100), 37 states have call predecessors, (100), 36 states have return successors, (99), 98 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-09 01:37:42,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 666 transitions. [2024-11-09 01:37:42,659 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 666 transitions. Word has length 107 [2024-11-09 01:37:42,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:37:42,660 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 666 transitions. [2024-11-09 01:37:42,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-09 01:37:42,661 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 666 transitions. [2024-11-09 01:37:42,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-09 01:37:42,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:37:42,664 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:37:42,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 01:37:42,664 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:37:42,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:37:42,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1103398156, now seen corresponding path program 1 times [2024-11-09 01:37:42,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:37:42,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071450893] [2024-11-09 01:37:42,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:37:42,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:37:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:37:43,657 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 01:37:43,658 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:37:43,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071450893] [2024-11-09 01:37:43,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071450893] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:37:43,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911990036] [2024-11-09 01:37:43,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:37:43,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:37:43,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:37:43,660 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:37:43,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf5aef8-c54e-419f-ac3f-2154f9f9b9d9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 01:37:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:37:44,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:37:44,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:37:44,237 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 01:37:44,238 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:37:44,498 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-09 01:37:44,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911990036] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:37:44,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1028009278] [2024-11-09 01:37:44,504 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2024-11-09 01:37:44,504 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:37:44,505 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:37:44,506 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:37:44,506 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:38:21,118 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 228 for LOIs [2024-11-09 01:38:21,254 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 235 for LOIs [2024-11-09 01:38:21,399 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 248 for LOIs [2024-11-09 01:38:25,856 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 291 for LOIs [2024-11-09 01:38:45,341 INFO L197 IcfgInterpreter]: Interpreting procedure queue with input of size 227 for LOIs [2024-11-09 01:38:45,450 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailFrom with input of size 249 for LOIs [2024-11-09 01:38:45,658 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 296 for LOIs [2024-11-09 01:38:47,298 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 252 for LOIs [2024-11-09 01:38:48,150 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 318 for LOIs [2024-11-09 01:38:49,264 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 224 for LOIs [2024-11-09 01:38:50,011 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:40:17,992 WARN L286 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 334 DAG size of output: 332 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:40:39,804 WARN L286 SmtUtils]: Spent 7.33s on a formula simplification. DAG size of input: 291 DAG size of output: 276 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:40:48,088 WARN L286 SmtUtils]: Spent 7.53s on a formula simplification. DAG size of input: 295 DAG size of output: 280 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:40:53,827 WARN L286 SmtUtils]: Spent 5.09s on a formula simplification. DAG size of input: 296 DAG size of output: 261 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:40:59,572 WARN L286 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 310 DAG size of output: 274 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)