./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/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_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/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_054aab6c-35a2-4db8-8ee9-033e0266da59/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 f690bd0b308b8d74e0ee0ea91ab3037911a0ede5caa4981030fbf7d571a3c297 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:48:03,302 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:48:03,413 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:48:03,421 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:48:03,422 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:48:03,468 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:48:03,469 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:48:03,470 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:48:03,471 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:48:03,472 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:48:03,473 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:48:03,473 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:48:03,474 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:48:03,475 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:48:03,475 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:48:03,476 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:48:03,477 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:48:03,478 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:48:03,478 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:48:03,479 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:48:03,480 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:48:03,484 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:48:03,486 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:48:03,486 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:48:03,487 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:48:03,488 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:48:03,488 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:48:03,489 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:48:03,489 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:48:03,490 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:48:03,495 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:48:03,495 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:48:03,498 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:48:03,499 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:48:03,500 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:48:03,501 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:48:03,502 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:48:03,502 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:48:03,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:48:03,503 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:48:03,504 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:48:03,504 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:48:03,505 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:48:03,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:48:03,506 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:48:03,506 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:48:03,507 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:48:03,507 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_054aab6c-35a2-4db8-8ee9-033e0266da59/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f690bd0b308b8d74e0ee0ea91ab3037911a0ede5caa4981030fbf7d571a3c297 [2024-11-09 05:48:03,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:48:03,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:48:03,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:48:03,952 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:48:03,953 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:48:03,956 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/product-lines/email_spec6_product15.cil.c Unable to find full path for "g++" [2024-11-09 05:48:06,905 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:48:07,439 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:48:07,441 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/sv-benchmarks/c/product-lines/email_spec6_product15.cil.c [2024-11-09 05:48:07,475 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/data/8aa70fe5c/f14fc5e9ce804aad841362e1de29109d/FLAG4d00895bd [2024-11-09 05:48:07,501 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/data/8aa70fe5c/f14fc5e9ce804aad841362e1de29109d [2024-11-09 05:48:07,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:48:07,508 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:48:07,511 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:48:07,511 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:48:07,523 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:48:07,524 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:48:07" (1/1) ... [2024-11-09 05:48:07,526 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d971a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:48:07, skipping insertion in model container [2024-11-09 05:48:07,527 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:48:07" (1/1) ... [2024-11-09 05:48:07,645 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:48:08,097 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_054aab6c-35a2-4db8-8ee9-033e0266da59/sv-benchmarks/c/product-lines/email_spec6_product15.cil.c[6819,6832] [2024-11-09 05:48:08,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:48:08,809 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:48:08,828 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2024-11-09 05:48:08,831 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [273] [2024-11-09 05:48:08,831 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [282] [2024-11-09 05:48:08,832 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [582] [2024-11-09 05:48:08,832 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [599] [2024-11-09 05:48:08,833 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1003] [2024-11-09 05:48:08,833 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1107] [2024-11-09 05:48:08,834 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2181] [2024-11-09 05:48:08,834 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptDecrypt_spec.i","") [2219] [2024-11-09 05:48:08,835 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2265] [2024-11-09 05:48:08,835 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2540] [2024-11-09 05:48:08,850 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_054aab6c-35a2-4db8-8ee9-033e0266da59/sv-benchmarks/c/product-lines/email_spec6_product15.cil.c[6819,6832] [2024-11-09 05:48:08,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:48:09,044 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:48:09,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:48:09 WrapperNode [2024-11-09 05:48:09,046 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:48:09,047 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:48:09,048 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:48:09,048 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:48:09,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:48:09" (1/1) ... [2024-11-09 05:48:09,109 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:48:09" (1/1) ... [2024-11-09 05:48:09,177 INFO L138 Inliner]: procedures = 126, calls = 187, calls flagged for inlining = 53, calls inlined = 44, statements flattened = 865 [2024-11-09 05:48:09,177 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:48:09,178 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:48:09,182 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:48:09,182 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:48:09,204 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:48:09" (1/1) ... [2024-11-09 05:48:09,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:48:09" (1/1) ... [2024-11-09 05:48:09,210 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:48:09" (1/1) ... [2024-11-09 05:48:09,216 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:48:09" (1/1) ... [2024-11-09 05:48:09,236 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:48:09" (1/1) ... [2024-11-09 05:48:09,253 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:48:09" (1/1) ... [2024-11-09 05:48:09,263 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:48:09" (1/1) ... [2024-11-09 05:48:09,274 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:48:09" (1/1) ... [2024-11-09 05:48:09,290 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:48:09,292 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:48:09,295 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:48:09,295 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:48:09,296 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:48:09" (1/1) ... [2024-11-09 05:48:09,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:48:09,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:48:09,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:48:09,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:48:09,387 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-09 05:48:09,388 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-09 05:48:09,389 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-09 05:48:09,389 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-09 05:48:09,390 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-09 05:48:09,390 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-09 05:48:09,391 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-09 05:48:09,391 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-09 05:48:09,391 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-09 05:48:09,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-09 05:48:09,392 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-09 05:48:09,393 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-09 05:48:09,393 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-09 05:48:09,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-09 05:48:09,394 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-09 05:48:09,394 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-09 05:48:09,394 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-09 05:48:09,394 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-09 05:48:09,394 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-09 05:48:09,397 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-09 05:48:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:48:09,398 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-09 05:48:09,398 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-09 05:48:09,398 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-09 05:48:09,398 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-09 05:48:09,399 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-09 05:48:09,399 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-09 05:48:09,399 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-09 05:48:09,400 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-09 05:48:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-09 05:48:09,400 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-09 05:48:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-09 05:48:09,400 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-09 05:48:09,401 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-09 05:48:09,401 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-09 05:48:09,401 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-09 05:48:09,401 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-09 05:48:09,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:48:09,402 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-09 05:48:09,402 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-09 05:48:09,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:48:09,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:48:09,706 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:48:09,709 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:48:11,086 INFO L? ?]: Removed 371 outVars from TransFormulas that were not future-live. [2024-11-09 05:48:11,086 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:48:12,027 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:48:12,029 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:48:12,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:48:12 BoogieIcfgContainer [2024-11-09 05:48:12,031 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:48:12,035 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:48:12,035 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:48:12,041 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:48:12,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:48:07" (1/3) ... [2024-11-09 05:48:12,042 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d45f259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:48:12, skipping insertion in model container [2024-11-09 05:48:12,043 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:48:09" (2/3) ... [2024-11-09 05:48:12,044 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d45f259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:48:12, skipping insertion in model container [2024-11-09 05:48:12,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:48:12" (3/3) ... [2024-11-09 05:48:12,049 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product15.cil.c [2024-11-09 05:48:12,085 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:48:12,086 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:48:12,234 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:48:12,249 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;@43448a17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:48:12,250 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:48:12,260 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 96 states have (on average 1.3541666666666667) internal successors, (130), 100 states have internal predecessors, (130), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-09 05:48:12,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 05:48:12,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:48:12,287 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 05:48:12,288 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:48:12,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:48:12,298 INFO L85 PathProgramCache]: Analyzing trace with hash 137544814, now seen corresponding path program 1 times [2024-11-09 05:48:12,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:48:12,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598263524] [2024-11-09 05:48:12,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:12,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:48:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:13,031 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 05:48:13,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:48:13,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598263524] [2024-11-09 05:48:13,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598263524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:48:13,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:48:13,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:48:13,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339903818] [2024-11-09 05:48:13,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:48:13,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:48:13,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:48:13,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:48:13,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:48:13,104 INFO L87 Difference]: Start difference. First operand has 163 states, 96 states have (on average 1.3541666666666667) internal successors, (130), 100 states have internal predecessors, (130), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 05:48:13,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:48:13,312 INFO L93 Difference]: Finished difference Result 243 states and 322 transitions. [2024-11-09 05:48:13,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:48:13,317 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 72 [2024-11-09 05:48:13,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:48:13,343 INFO L225 Difference]: With dead ends: 243 [2024-11-09 05:48:13,343 INFO L226 Difference]: Without dead ends: 160 [2024-11-09 05:48:13,351 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 05:48:13,359 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:48:13,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 189 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:48:13,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-09 05:48:13,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-11-09 05:48:13,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 94 states have (on average 1.3191489361702127) internal successors, (124), 97 states have internal predecessors, (124), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-09 05:48:13,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 215 transitions. [2024-11-09 05:48:13,467 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 215 transitions. Word has length 72 [2024-11-09 05:48:13,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:48:13,470 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 215 transitions. [2024-11-09 05:48:13,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 05:48:13,471 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 215 transitions. [2024-11-09 05:48:13,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-09 05:48:13,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:48:13,478 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, 1] [2024-11-09 05:48:13,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:48:13,479 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:48:13,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:48:13,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1547833800, now seen corresponding path program 1 times [2024-11-09 05:48:13,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:48:13,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563554978] [2024-11-09 05:48:13,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:13,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:48:13,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:13,892 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 05:48:13,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:48:13,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563554978] [2024-11-09 05:48:13,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563554978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:48:13,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:48:13,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:48:13,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901960574] [2024-11-09 05:48:13,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:48:13,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:48:13,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:48:13,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:48:13,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:48:13,902 INFO L87 Difference]: Start difference. First operand 160 states and 215 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 05:48:14,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:48:14,112 INFO L93 Difference]: Finished difference Result 239 states and 310 transitions. [2024-11-09 05:48:14,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:48:14,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 73 [2024-11-09 05:48:14,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:48:14,118 INFO L225 Difference]: With dead ends: 239 [2024-11-09 05:48:14,118 INFO L226 Difference]: Without dead ends: 162 [2024-11-09 05:48:14,125 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 05:48:14,127 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:48:14,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 371 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:48:14,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-09 05:48:14,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-11-09 05:48:14,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 96 states have (on average 1.3125) internal successors, (126), 99 states have internal predecessors, (126), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-09 05:48:14,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 217 transitions. [2024-11-09 05:48:14,166 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 217 transitions. Word has length 73 [2024-11-09 05:48:14,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:48:14,167 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 217 transitions. [2024-11-09 05:48:14,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 05:48:14,168 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 217 transitions. [2024-11-09 05:48:14,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 05:48:14,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:48:14,173 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-09 05:48:14,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:48:14,174 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:48:14,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:48:14,175 INFO L85 PathProgramCache]: Analyzing trace with hash -2060211109, now seen corresponding path program 1 times [2024-11-09 05:48:14,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:48:14,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547530344] [2024-11-09 05:48:14,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:14,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:48:14,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:14,521 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 05:48:14,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:48:14,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547530344] [2024-11-09 05:48:14,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547530344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:48:14,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:48:14,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:48:14,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251769051] [2024-11-09 05:48:14,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:48:14,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:48:14,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:48:14,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:48:14,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:48:14,530 INFO L87 Difference]: Start difference. First operand 162 states and 217 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 05:48:14,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:48:14,780 INFO L93 Difference]: Finished difference Result 354 states and 493 transitions. [2024-11-09 05:48:14,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:48:14,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 78 [2024-11-09 05:48:14,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:48:14,786 INFO L225 Difference]: With dead ends: 354 [2024-11-09 05:48:14,786 INFO L226 Difference]: Without dead ends: 210 [2024-11-09 05:48:14,789 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 05:48:14,791 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 57 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:48:14,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 379 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:48:14,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-09 05:48:14,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 205. [2024-11-09 05:48:14,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 128 states have (on average 1.3984375) internal successors, (179), 131 states have internal predecessors, (179), 57 states have call successors, (57), 19 states have call predecessors, (57), 19 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-09 05:48:14,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 292 transitions. [2024-11-09 05:48:14,828 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 292 transitions. Word has length 78 [2024-11-09 05:48:14,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:48:14,829 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 292 transitions. [2024-11-09 05:48:14,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 05:48:14,830 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 292 transitions. [2024-11-09 05:48:14,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-09 05:48:14,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:48:14,835 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-09 05:48:14,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:48:14,836 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:48:14,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:48:14,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1952377579, now seen corresponding path program 1 times [2024-11-09 05:48:14,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:48:14,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260115502] [2024-11-09 05:48:14,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:14,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:48:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:15,202 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 05:48:15,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:48:15,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260115502] [2024-11-09 05:48:15,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260115502] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:48:15,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688736167] [2024-11-09 05:48:15,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:15,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:48:15,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:48:15,211 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:48:15,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:48:15,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:15,788 INFO L255 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:48:15,800 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:48:15,924 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 05:48:15,928 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:48:16,147 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 05:48:16,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688736167] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:48:16,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [92805738] [2024-11-09 05:48:16,191 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2024-11-09 05:48:16,191 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:48:16,199 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:48:16,209 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:48:16,211 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:48:57,773 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2024-11-09 05:48:58,154 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2024-11-09 05:48:58,382 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:50:08,295 WARN L286 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 454 DAG size of output: 451 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:50:14,397 WARN L286 SmtUtils]: Spent 5.57s on a formula simplification. DAG size of input: 455 DAG size of output: 451 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:50:20,442 WARN L286 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 459 DAG size of output: 455 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:50:25,832 WARN L286 SmtUtils]: Spent 5.06s on a formula simplification that was a NOOP. DAG size: 441 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:50:25,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [92805738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:50:25,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:50:25,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-09 05:50:25,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114505955] [2024-11-09 05:50:25,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:50:25,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 05:50:25,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:50:25,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 05:50:25,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2024-11-09 05:50:25,849 INFO L87 Difference]: Start difference. First operand 205 states and 292 transitions. Second operand has 23 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 14 states have internal predecessors, (40), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2024-11-09 05:50:40,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:50:40,515 INFO L93 Difference]: Finished difference Result 424 states and 620 transitions. [2024-11-09 05:50:40,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 05:50:40,519 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 14 states have internal predecessors, (40), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) Word has length 79 [2024-11-09 05:50:40,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:50:40,522 INFO L225 Difference]: With dead ends: 424 [2024-11-09 05:50:40,523 INFO L226 Difference]: Without dead ends: 237 [2024-11-09 05:50:40,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 92.2s TimeCoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2024-11-09 05:50:40,526 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 25 mSDsluCounter, 1823 mSDsCounter, 0 mSdLazyCounter, 1538 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 1548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:50:40,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 1990 Invalid, 1548 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 1538 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2024-11-09 05:50:40,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-09 05:50:40,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 228. [2024-11-09 05:50:40,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 150 states have (on average 1.4133333333333333) internal successors, (212), 153 states have internal predecessors, (212), 57 states have call successors, (57), 20 states have call predecessors, (57), 20 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-09 05:50:40,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 325 transitions. [2024-11-09 05:50:40,621 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 325 transitions. Word has length 79 [2024-11-09 05:50:40,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:50:40,622 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 325 transitions. [2024-11-09 05:50:40,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 14 states have internal predecessors, (40), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2024-11-09 05:50:40,623 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 325 transitions. [2024-11-09 05:50:40,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 05:50:40,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:50:40,628 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 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] [2024-11-09 05:50:40,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 05:50:40,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:50:40,834 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:50:40,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:50:40,835 INFO L85 PathProgramCache]: Analyzing trace with hash 661221010, now seen corresponding path program 1 times [2024-11-09 05:50:40,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:50:40,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74007630] [2024-11-09 05:50:40,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:50:40,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:50:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:50:41,027 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 05:50:41,028 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:50:41,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74007630] [2024-11-09 05:50:41,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74007630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:50:41,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:50:41,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:50:41,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227049596] [2024-11-09 05:50:41,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:50:41,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:50:41,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:50:41,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:50:41,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:50:41,035 INFO L87 Difference]: Start difference. First operand 228 states and 325 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-09 05:50:41,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:50:41,296 INFO L93 Difference]: Finished difference Result 549 states and 814 transitions. [2024-11-09 05:50:41,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:50:41,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 84 [2024-11-09 05:50:41,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:50:41,302 INFO L225 Difference]: With dead ends: 549 [2024-11-09 05:50:41,302 INFO L226 Difference]: Without dead ends: 345 [2024-11-09 05:50:41,304 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 05:50:41,305 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 55 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:50:41,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 372 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:50:41,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-09 05:50:41,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 340. [2024-11-09 05:50:41,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 237 states have (on average 1.4683544303797469) internal successors, (348), 240 states have internal predecessors, (348), 82 states have call successors, (82), 20 states have call predecessors, (82), 20 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-09 05:50:41,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 511 transitions. [2024-11-09 05:50:41,463 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 511 transitions. Word has length 84 [2024-11-09 05:50:41,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:50:41,464 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 511 transitions. [2024-11-09 05:50:41,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-09 05:50:41,465 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 511 transitions. [2024-11-09 05:50:41,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-09 05:50:41,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:50:41,470 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 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] [2024-11-09 05:50:41,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:50:41,470 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:50:41,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:50:41,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1521704193, now seen corresponding path program 1 times [2024-11-09 05:50:41,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:50:41,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651552641] [2024-11-09 05:50:41,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:50:41,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:50:41,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:50:41,749 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 05:50:41,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:50:41,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651552641] [2024-11-09 05:50:41,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651552641] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:50:41,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458921381] [2024-11-09 05:50:41,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:50:41,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:50:41,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:50:41,753 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:50:41,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:50:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:50:42,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:50:42,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:50:42,317 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 05:50:42,318 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:50:42,470 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 05:50:42,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458921381] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:50:42,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [523984387] [2024-11-09 05:50:42,476 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2024-11-09 05:50:42,476 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:50:42,477 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:50:42,478 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:50:42,478 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:51:37,471 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2024-11-09 05:51:37,691 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 438 for LOIs [2024-11-09 05:51:39,372 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:52:09,403 WARN L286 SmtUtils]: Spent 9.78s on a formula simplification. DAG size of input: 438 DAG size of output: 439 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:52:23,974 WARN L286 SmtUtils]: Spent 14.05s on a formula simplification. DAG size of input: 462 DAG size of output: 458 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:53:18,412 WARN L286 SmtUtils]: Spent 13.48s on a formula simplification. DAG size of input: 455 DAG size of output: 455 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:53:32,786 WARN L286 SmtUtils]: Spent 12.94s on a formula simplification. DAG size of input: 456 DAG size of output: 455 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:53:48,029 WARN L286 SmtUtils]: Spent 13.80s on a formula simplification. DAG size of input: 460 DAG size of output: 459 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:54:04,872 WARN L286 SmtUtils]: Spent 13.64s on a formula simplification. DAG size of input: 460 DAG size of output: 459 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:54:21,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [523984387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:54:21,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:54:21,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-09 05:54:21,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017787666] [2024-11-09 05:54:21,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:54:21,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 05:54:21,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:54:21,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 05:54:21,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2024-11-09 05:54:21,843 INFO L87 Difference]: Start difference. First operand 340 states and 511 transitions. Second operand has 26 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 16 states have internal predecessors, (43), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-11-09 05:54:40,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:54:40,738 INFO L93 Difference]: Finished difference Result 688 states and 1061 transitions. [2024-11-09 05:54:40,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-09 05:54:40,740 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 16 states have internal predecessors, (43), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 85 [2024-11-09 05:54:40,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:54:40,743 INFO L225 Difference]: With dead ends: 688 [2024-11-09 05:54:40,744 INFO L226 Difference]: Without dead ends: 411 [2024-11-09 05:54:40,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 226 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 166.9s TimeCoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-09 05:54:40,746 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 41 mSDsluCounter, 2171 mSDsCounter, 0 mSdLazyCounter, 2176 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 2339 SdHoareTripleChecker+Invalid, 2185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:54:40,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 2339 Invalid, 2185 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2176 Invalid, 0 Unknown, 0 Unchecked, 14.2s Time] [2024-11-09 05:54:40,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-11-09 05:54:40,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 354. [2024-11-09 05:54:40,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 249 states have (on average 1.465863453815261) internal successors, (365), 252 states have internal predecessors, (365), 83 states have call successors, (83), 21 states have call predecessors, (83), 21 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-09 05:54:40,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 530 transitions. [2024-11-09 05:54:40,882 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 530 transitions. Word has length 85 [2024-11-09 05:54:40,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:54:40,882 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 530 transitions. [2024-11-09 05:54:40,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 16 states have internal predecessors, (43), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-11-09 05:54:40,883 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 530 transitions. [2024-11-09 05:54:40,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-09 05:54:40,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:54:40,887 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1] [2024-11-09 05:54:40,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:54:41,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:54:41,088 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:54:41,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:54:41,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1236303953, now seen corresponding path program 1 times [2024-11-09 05:54:41,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:54:41,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974849021] [2024-11-09 05:54:41,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:54:41,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:54:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:54:41,326 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 05:54:41,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:54:41,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974849021] [2024-11-09 05:54:41,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974849021] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:54:41,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142858724] [2024-11-09 05:54:41,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:54:41,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:54:41,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:54:41,331 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:54:41,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:54:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:54:41,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:54:41,841 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:54:41,890 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 05:54:41,891 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:54:41,997 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 05:54:41,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142858724] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:54:41,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1535372050] [2024-11-09 05:54:42,006 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2024-11-09 05:54:42,007 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:54:42,007 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:54:42,008 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:54:42,008 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:56:10,618 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2024-11-09 05:56:10,824 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 484 for LOIs [2024-11-09 05:56:12,108 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 493 for LOIs [2024-11-09 05:56:13,496 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 429 for LOIs [2024-11-09 05:56:13,878 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2024-11-09 05:56:14,032 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:57:19,190 WARN L286 SmtUtils]: Spent 12.60s on a formula simplification. DAG size of input: 513 DAG size of output: 508 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:57:32,615 WARN L286 SmtUtils]: Spent 12.71s on a formula simplification. DAG size of input: 514 DAG size of output: 508 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:57:58,559 WARN L286 SmtUtils]: Spent 5.20s on a formula simplification. DAG size of input: 499 DAG size of output: 495 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:58:04,162 WARN L286 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 493 DAG size of output: 489 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:58:09,642 WARN L286 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 493 DAG size of output: 489 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:58:15,191 WARN L286 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 489 DAG size of output: 485 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:58:31,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1535372050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:31,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:58:31,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-09 05:58:31,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953503556] [2024-11-09 05:58:31,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:31,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-09 05:58:31,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:31,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-09 05:58:31,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 05:58:31,359 INFO L87 Difference]: Start difference. First operand 354 states and 530 transitions. Second operand has 33 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2024-11-09 05:58:51,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:51,507 INFO L93 Difference]: Finished difference Result 713 states and 1096 transitions. [2024-11-09 05:58:51,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-09 05:58:51,509 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) Word has length 88 [2024-11-09 05:58:51,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:51,512 INFO L225 Difference]: With dead ends: 713 [2024-11-09 05:58:51,512 INFO L226 Difference]: Without dead ends: 436 [2024-11-09 05:58:51,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 140.7s TimeCoverageRelationStatistics Valid=121, Invalid=1361, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 05:58:51,514 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 100 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 3197 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 2992 SdHoareTripleChecker+Invalid, 3207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:51,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 2992 Invalid, 3207 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3197 Invalid, 0 Unknown, 0 Unchecked, 16.5s Time] [2024-11-09 05:58:51,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-11-09 05:58:51,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 390. [2024-11-09 05:58:51,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 279 states have (on average 1.4587813620071686) internal successors, (407), 282 states have internal predecessors, (407), 86 states have call successors, (86), 24 states have call predecessors, (86), 24 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-09 05:58:51,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 578 transitions. [2024-11-09 05:58:51,651 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 578 transitions. Word has length 88 [2024-11-09 05:58:51,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:51,651 INFO L471 AbstractCegarLoop]: Abstraction has 390 states and 578 transitions. [2024-11-09 05:58:51,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2024-11-09 05:58:51,652 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 578 transitions. [2024-11-09 05:58:51,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 05:58:51,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:51,654 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1] [2024-11-09 05:58:51,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 05:58:51,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:58:51,859 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:58:51,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:51,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1941856401, now seen corresponding path program 1 times [2024-11-09 05:58:51,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:51,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077652486] [2024-11-09 05:58:51,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:51,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:51,997 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 05:58:51,998 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:51,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077652486] [2024-11-09 05:58:51,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077652486] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:58:51,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684701324] [2024-11-09 05:58:51,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:51,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:58:51,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:58:52,000 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:58:52,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:58:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:52,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:58:52,336 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:58:52,370 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 05:58:52,370 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:58:52,461 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 05:58:52,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684701324] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:58:52,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [639183237] [2024-11-09 05:58:52,465 INFO L159 IcfgInterpreter]: Started Sifa with 74 locations of interest [2024-11-09 05:58:52,465 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:58:52,465 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:58:52,465 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:58:52,466 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:59:37,117 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2024-11-09 05:59:37,288 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2024-11-09 05:59:37,418 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:00:37,026 WARN L286 SmtUtils]: Spent 10.44s on a formula simplification. DAG size of input: 453 DAG size of output: 453 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:00:48,567 WARN L286 SmtUtils]: Spent 10.49s on a formula simplification. DAG size of input: 454 DAG size of output: 453 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:01:00,611 WARN L286 SmtUtils]: Spent 10.83s on a formula simplification. DAG size of input: 458 DAG size of output: 457 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:01:13,404 WARN L286 SmtUtils]: Spent 10.34s on a formula simplification. DAG size of input: 458 DAG size of output: 457 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:01:35,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [639183237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:01:35,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:01:35,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-09 06:01:35,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194014578] [2024-11-09 06:01:35,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:01:35,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 06:01:35,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:01:35,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 06:01:35,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=893, Unknown=0, NotChecked=0, Total=992 [2024-11-09 06:01:35,215 INFO L87 Difference]: Start difference. First operand 390 states and 578 transitions. Second operand has 27 states, 19 states have (on average 2.526315789473684) internal successors, (48), 18 states have internal predecessors, (48), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2024-11-09 06:01:52,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:01:52,201 INFO L93 Difference]: Finished difference Result 715 states and 1087 transitions. [2024-11-09 06:01:52,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 06:01:52,202 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 19 states have (on average 2.526315789473684) internal successors, (48), 18 states have internal predecessors, (48), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) Word has length 87 [2024-11-09 06:01:52,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:01:52,208 INFO L225 Difference]: With dead ends: 715 [2024-11-09 06:01:52,208 INFO L226 Difference]: Without dead ends: 438 [2024-11-09 06:01:52,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 228 SyntacticMatches, 5 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 121.6s TimeCoverageRelationStatistics Valid=104, Invalid=952, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 06:01:52,213 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 17 mSDsluCounter, 2462 mSDsCounter, 0 mSdLazyCounter, 2400 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2621 SdHoareTripleChecker+Invalid, 2409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:01:52,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2621 Invalid, 2409 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2400 Invalid, 0 Unknown, 0 Unchecked, 12.9s Time] [2024-11-09 06:01:52,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-11-09 06:01:52,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 410. [2024-11-09 06:01:52,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 299 states have (on average 1.4615384615384615) internal successors, (437), 302 states have internal predecessors, (437), 86 states have call successors, (86), 24 states have call predecessors, (86), 24 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-09 06:01:52,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 608 transitions. [2024-11-09 06:01:52,407 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 608 transitions. Word has length 87 [2024-11-09 06:01:52,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:01:52,408 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 608 transitions. [2024-11-09 06:01:52,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 19 states have (on average 2.526315789473684) internal successors, (48), 18 states have internal predecessors, (48), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2024-11-09 06:01:52,408 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 608 transitions. [2024-11-09 06:01:52,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 06:01:52,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:01:52,411 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 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] [2024-11-09 06:01:52,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 06:01:52,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:01:52,612 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:01:52,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:01:52,613 INFO L85 PathProgramCache]: Analyzing trace with hash -935030385, now seen corresponding path program 1 times [2024-11-09 06:01:52,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:01:52,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902403414] [2024-11-09 06:01:52,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:52,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:01:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:01:53,509 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 06:01:53,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:01:53,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902403414] [2024-11-09 06:01:53,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902403414] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:01:53,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656109151] [2024-11-09 06:01:53,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:53,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:01:53,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:01:53,512 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:01:53,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054aab6c-35a2-4db8-8ee9-033e0266da59/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 06:01:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:01:53,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 899 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:01:53,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:01:54,044 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 06:01:54,044 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:01:54,179 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 06:01:54,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656109151] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:01:54,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1141485629] [2024-11-09 06:01:54,182 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2024-11-09 06:01:54,182 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:01:54,183 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:01:54,183 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:01:54,183 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs