./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/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_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/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_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/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 ca4739abfecd00b8d2b799ccc2617c6e4b4e221f88b8a7e722070835771a8404 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:16:50,105 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:16:50,185 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:16:50,193 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:16:50,193 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:16:50,216 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:16:50,216 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:16:50,217 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:16:50,217 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:16:50,218 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:16:50,218 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:16:50,218 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:16:50,219 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:16:50,219 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:16:50,220 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:16:50,220 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:16:50,220 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:16:50,221 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:16:50,221 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:16:50,221 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:16:50,222 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:16:50,225 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:16:50,226 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:16:50,226 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:16:50,227 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:16:50,227 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:16:50,227 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:16:50,228 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:16:50,228 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:16:50,228 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:16:50,228 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:16:50,229 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:16:50,229 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:16:50,229 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:16:50,230 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:16:50,230 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:16:50,230 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:16:50,231 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:16:50,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:16:50,232 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:16:50,232 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:16:50,233 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:16:50,234 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:16:50,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:16:50,234 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:16:50,235 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:16:50,235 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:16:50,235 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_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca4739abfecd00b8d2b799ccc2617c6e4b4e221f88b8a7e722070835771a8404 [2024-11-09 05:16:50,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:16:50,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:16:50,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:16:50,539 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:16:50,540 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:16:50,542 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/product-lines/email_spec1_product31.cil.c Unable to find full path for "g++" [2024-11-09 05:16:52,549 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:16:53,008 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:16:53,009 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/sv-benchmarks/c/product-lines/email_spec1_product31.cil.c [2024-11-09 05:16:53,029 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/data/e4bf8ef78/be177a21406f42e5b9745585601f4084/FLAGf453b6373 [2024-11-09 05:16:53,045 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/data/e4bf8ef78/be177a21406f42e5b9745585601f4084 [2024-11-09 05:16:53,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:16:53,049 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:16:53,050 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:16:53,050 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:16:53,058 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:16:53,059 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:16:53" (1/1) ... [2024-11-09 05:16:53,060 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4227d4dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:53, skipping insertion in model container [2024-11-09 05:16:53,063 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:16:53" (1/1) ... [2024-11-09 05:16:53,139 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:16:53,790 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_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/sv-benchmarks/c/product-lines/email_spec1_product31.cil.c[64142,64155] [2024-11-09 05:16:53,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:16:53,811 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:16:53,820 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2024-11-09 05:16:53,821 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [66] [2024-11-09 05:16:53,821 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [108] [2024-11-09 05:16:53,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [489] [2024-11-09 05:16:53,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [855] [2024-11-09 05:16:53,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [992] [2024-11-09 05:16:53,823 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1217] [2024-11-09 05:16:53,823 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1255] [2024-11-09 05:16:53,823 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1537] [2024-11-09 05:16:53,824 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1934] [2024-11-09 05:16:53,824 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3001] [2024-11-09 05:16:53,983 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_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/sv-benchmarks/c/product-lines/email_spec1_product31.cil.c[64142,64155] [2024-11-09 05:16:53,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:16:54,021 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:16:54,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:54 WrapperNode [2024-11-09 05:16:54,022 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:16:54,024 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:16:54,024 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:16:54,024 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:16:54,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:54" (1/1) ... [2024-11-09 05:16:54,054 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:54" (1/1) ... [2024-11-09 05:16:54,127 INFO L138 Inliner]: procedures = 131, calls = 204, calls flagged for inlining = 61, calls inlined = 56, statements flattened = 1028 [2024-11-09 05:16:54,128 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:16:54,132 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:16:54,133 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:16:54,133 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:16:54,148 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:54" (1/1) ... [2024-11-09 05:16:54,149 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:54" (1/1) ... [2024-11-09 05:16:54,158 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:54" (1/1) ... [2024-11-09 05:16:54,162 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:54" (1/1) ... [2024-11-09 05:16:54,191 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:54" (1/1) ... [2024-11-09 05:16:54,206 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:54" (1/1) ... [2024-11-09 05:16:54,214 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:54" (1/1) ... [2024-11-09 05:16:54,224 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:54" (1/1) ... [2024-11-09 05:16:54,233 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:16:54,234 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:16:54,235 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:16:54,235 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:16:54,236 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:54" (1/1) ... [2024-11-09 05:16:54,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:16:54,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:54,270 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:16:54,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:16:54,305 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-09 05:16:54,306 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-09 05:16:54,306 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-09 05:16:54,306 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-09 05:16:54,306 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-09 05:16:54,306 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-09 05:16:54,306 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-09 05:16:54,307 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-09 05:16:54,307 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-09 05:16:54,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-09 05:16:54,307 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-09 05:16:54,307 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-09 05:16:54,307 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-09 05:16:54,307 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-09 05:16:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-09 05:16:54,308 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-09 05:16:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-09 05:16:54,308 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-09 05:16:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-09 05:16:54,308 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-09 05:16:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-09 05:16:54,308 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-09 05:16:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-09 05:16:54,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-09 05:16:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:16:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-09 05:16:54,309 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-09 05:16:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-09 05:16:54,309 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-09 05:16:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-09 05:16:54,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-09 05:16:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-09 05:16:54,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-09 05:16:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-09 05:16:54,310 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-09 05:16:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-09 05:16:54,310 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-09 05:16:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-09 05:16:54,310 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-09 05:16:54,311 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-09 05:16:54,311 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-09 05:16:54,311 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-09 05:16:54,311 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-09 05:16:54,311 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-09 05:16:54,311 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-09 05:16:54,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:16:54,311 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-09 05:16:54,312 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-09 05:16:54,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:16:54,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:16:54,534 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:16:54,536 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:16:55,594 INFO L? ?]: Removed 476 outVars from TransFormulas that were not future-live. [2024-11-09 05:16:55,595 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:16:56,261 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:16:56,261 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:16:56,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:16:56 BoogieIcfgContainer [2024-11-09 05:16:56,262 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:16:56,266 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:16:56,267 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:16:56,270 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:16:56,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:16:53" (1/3) ... [2024-11-09 05:16:56,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@242877d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:16:56, skipping insertion in model container [2024-11-09 05:16:56,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:54" (2/3) ... [2024-11-09 05:16:56,273 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@242877d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:16:56, skipping insertion in model container [2024-11-09 05:16:56,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:16:56" (3/3) ... [2024-11-09 05:16:56,276 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product31.cil.c [2024-11-09 05:16:56,294 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:16:56,295 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:16:56,379 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:16:56,389 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;@64607ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:16:56,389 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:16:56,397 INFO L276 IsEmpty]: Start isEmpty. Operand has 201 states, 117 states have (on average 1.3162393162393162) internal successors, (154), 121 states have internal predecessors, (154), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-09 05:16:56,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 05:16:56,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:56,414 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:56,414 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:16:56,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:56,420 INFO L85 PathProgramCache]: Analyzing trace with hash 314529389, now seen corresponding path program 1 times [2024-11-09 05:16:56,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:56,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39379605] [2024-11-09 05:16:56,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:56,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:56,879 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:16:56,880 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:56,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39379605] [2024-11-09 05:16:56,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39379605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:56,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:56,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:16:56,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662142736] [2024-11-09 05:16:56,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:56,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:16:56,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:56,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:16:56,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:16:56,925 INFO L87 Difference]: Start difference. First operand has 201 states, 117 states have (on average 1.3162393162393162) internal successors, (154), 121 states have internal predecessors, (154), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 05:16:57,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:57,101 INFO L93 Difference]: Finished difference Result 319 states and 422 transitions. [2024-11-09 05:16:57,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:16:57,106 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 64 [2024-11-09 05:16:57,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:57,121 INFO L225 Difference]: With dead ends: 319 [2024-11-09 05:16:57,121 INFO L226 Difference]: Without dead ends: 198 [2024-11-09 05:16:57,126 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 05:16:57,133 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:57,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 232 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:16:57,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-09 05:16:57,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2024-11-09 05:16:57,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 115 states have (on average 1.2869565217391303) internal successors, (148), 118 states have internal predecessors, (148), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-09 05:16:57,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 265 transitions. [2024-11-09 05:16:57,191 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 265 transitions. Word has length 64 [2024-11-09 05:16:57,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:57,193 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 265 transitions. [2024-11-09 05:16:57,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 05:16:57,193 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 265 transitions. [2024-11-09 05:16:57,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 05:16:57,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:57,196 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:57,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:16:57,197 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:16:57,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:57,198 INFO L85 PathProgramCache]: Analyzing trace with hash 176384843, now seen corresponding path program 1 times [2024-11-09 05:16:57,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:57,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123173433] [2024-11-09 05:16:57,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:57,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:57,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:57,410 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:16:57,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:57,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123173433] [2024-11-09 05:16:57,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123173433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:57,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:57,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:16:57,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220185578] [2024-11-09 05:16:57,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:57,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:16:57,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:57,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:16:57,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:57,414 INFO L87 Difference]: Start difference. First operand 198 states and 265 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 05:16:57,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:57,624 INFO L93 Difference]: Finished difference Result 315 states and 410 transitions. [2024-11-09 05:16:57,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:16:57,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2024-11-09 05:16:57,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:57,631 INFO L225 Difference]: With dead ends: 315 [2024-11-09 05:16:57,631 INFO L226 Difference]: Without dead ends: 200 [2024-11-09 05:16:57,633 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 05:16:57,638 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 0 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:57,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 457 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:16:57,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-11-09 05:16:57,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2024-11-09 05:16:57,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 117 states have (on average 1.2820512820512822) internal successors, (150), 120 states have internal predecessors, (150), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-09 05:16:57,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 267 transitions. [2024-11-09 05:16:57,682 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 267 transitions. Word has length 65 [2024-11-09 05:16:57,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:57,683 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 267 transitions. [2024-11-09 05:16:57,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 05:16:57,683 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 267 transitions. [2024-11-09 05:16:57,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 05:16:57,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:57,688 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] [2024-11-09 05:16:57,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:16:57,688 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:16:57,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:57,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1720595033, now seen corresponding path program 1 times [2024-11-09 05:16:57,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:57,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983260981] [2024-11-09 05:16:57,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:57,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:57,900 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:16:57,901 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:57,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983260981] [2024-11-09 05:16:57,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983260981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:57,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:57,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:16:57,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405174093] [2024-11-09 05:16:57,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:57,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:16:57,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:57,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:16:57,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:57,906 INFO L87 Difference]: Start difference. First operand 200 states and 267 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 05:16:58,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:58,073 INFO L93 Difference]: Finished difference Result 430 states and 593 transitions. [2024-11-09 05:16:58,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:16:58,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 70 [2024-11-09 05:16:58,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:58,080 INFO L225 Difference]: With dead ends: 430 [2024-11-09 05:16:58,080 INFO L226 Difference]: Without dead ends: 248 [2024-11-09 05:16:58,081 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 05:16:58,083 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 57 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:58,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 459 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:16:58,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-09 05:16:58,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 243. [2024-11-09 05:16:58,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 149 states have (on average 1.3624161073825503) internal successors, (203), 152 states have internal predecessors, (203), 70 states have call successors, (70), 23 states have call predecessors, (70), 23 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-09 05:16:58,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 342 transitions. [2024-11-09 05:16:58,141 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 342 transitions. Word has length 70 [2024-11-09 05:16:58,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:58,141 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 342 transitions. [2024-11-09 05:16:58,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 05:16:58,143 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 342 transitions. [2024-11-09 05:16:58,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 05:16:58,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:58,150 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:58,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:16:58,150 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:16:58,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:58,151 INFO L85 PathProgramCache]: Analyzing trace with hash 2008738082, now seen corresponding path program 1 times [2024-11-09 05:16:58,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:58,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968283797] [2024-11-09 05:16:58,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:58,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:58,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:58,434 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:16:58,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:58,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968283797] [2024-11-09 05:16:58,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968283797] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:16:58,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866286108] [2024-11-09 05:16:58,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:58,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:58,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:58,439 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:16:58,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:16:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:58,943 INFO L255 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:16:58,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:59,012 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:16:59,012 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:16:59,107 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:16:59,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866286108] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:16:59,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [412293927] [2024-11-09 05:16:59,131 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2024-11-09 05:16:59,132 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:16:59,136 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:16:59,141 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:16:59,142 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:17:32,413 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-09 05:17:32,644 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 240 for LOIs [2024-11-09 05:17:32,894 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:18:37,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [412293927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:18:37,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:18:37,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-09 05:18:37,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793009887] [2024-11-09 05:18:37,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:18:37,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 05:18:37,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:18:37,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 05:18:37,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-09 05:18:37,253 INFO L87 Difference]: Start difference. First operand 243 states and 342 transitions. Second operand has 23 states, 15 states have (on average 2.466666666666667) internal successors, (37), 14 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-09 05:18:47,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:47,945 INFO L93 Difference]: Finished difference Result 500 states and 720 transitions. [2024-11-09 05:18:47,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 05:18:47,946 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 2.466666666666667) internal successors, (37), 14 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 71 [2024-11-09 05:18:47,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:47,949 INFO L225 Difference]: With dead ends: 500 [2024-11-09 05:18:47,950 INFO L226 Difference]: Without dead ends: 275 [2024-11-09 05:18:47,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 67.6s TimeCoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2024-11-09 05:18:47,952 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 25 mSDsluCounter, 2639 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2849 SdHoareTripleChecker+Invalid, 1772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:47,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2849 Invalid, 1772 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2024-11-09 05:18:47,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2024-11-09 05:18:48,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 266. [2024-11-09 05:18:48,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 171 states have (on average 1.3801169590643274) internal successors, (236), 174 states have internal predecessors, (236), 70 states have call successors, (70), 24 states have call predecessors, (70), 24 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-09 05:18:48,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 375 transitions. [2024-11-09 05:18:48,039 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 375 transitions. Word has length 71 [2024-11-09 05:18:48,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:48,041 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 375 transitions. [2024-11-09 05:18:48,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 2.466666666666667) internal successors, (37), 14 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-09 05:18:48,041 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 375 transitions. [2024-11-09 05:18:48,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 05:18:48,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:48,047 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:18:48,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:18:48,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:18:48,248 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:18:48,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:48,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1212951544, now seen corresponding path program 1 times [2024-11-09 05:18:48,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:18:48,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117546432] [2024-11-09 05:18:48,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:48,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:18:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:48,356 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:18:48,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:18:48,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117546432] [2024-11-09 05:18:48,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117546432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:18:48,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:18:48,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:18:48,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579370300] [2024-11-09 05:18:48,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:18:48,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:18:48,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:18:48,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:18:48,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:18:48,359 INFO L87 Difference]: Start difference. First operand 266 states and 375 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-09 05:18:48,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:48,563 INFO L93 Difference]: Finished difference Result 625 states and 914 transitions. [2024-11-09 05:18:48,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:18:48,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 76 [2024-11-09 05:18:48,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:48,567 INFO L225 Difference]: With dead ends: 625 [2024-11-09 05:18:48,567 INFO L226 Difference]: Without dead ends: 383 [2024-11-09 05:18:48,568 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 05:18:48,569 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 55 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:48,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 467 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:18:48,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-09 05:18:48,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 378. [2024-11-09 05:18:48,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 258 states have (on average 1.441860465116279) internal successors, (372), 261 states have internal predecessors, (372), 95 states have call successors, (95), 24 states have call predecessors, (95), 24 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-09 05:18:48,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 561 transitions. [2024-11-09 05:18:48,671 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 561 transitions. Word has length 76 [2024-11-09 05:18:48,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:48,671 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 561 transitions. [2024-11-09 05:18:48,672 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-09 05:18:48,672 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 561 transitions. [2024-11-09 05:18:48,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 05:18:48,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:48,674 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:18:48,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:18:48,675 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:18:48,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:48,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1533790498, now seen corresponding path program 1 times [2024-11-09 05:18:48,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:18:48,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790442792] [2024-11-09 05:18:48,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:48,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:18:48,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:48,864 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:18:48,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:18:48,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790442792] [2024-11-09 05:18:48,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790442792] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:18:48,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925423783] [2024-11-09 05:18:48,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:48,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:18:48,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:18:48,867 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:18:48,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:18:49,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:49,217 INFO L255 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:18:49,221 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:18:49,259 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:18:49,260 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:18:49,356 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:18:49,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925423783] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:18:49,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1652893247] [2024-11-09 05:18:49,360 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2024-11-09 05:18:49,361 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:18:49,361 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:18:49,362 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:18:49,362 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:19:26,795 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-09 05:19:26,923 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 443 for LOIs [2024-11-09 05:19:28,193 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:19:51,375 WARN L286 SmtUtils]: Spent 7.28s on a formula simplification. DAG size of input: 443 DAG size of output: 443 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:20:02,264 WARN L286 SmtUtils]: Spent 10.58s on a formula simplification. DAG size of input: 467 DAG size of output: 462 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:21:00,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1652893247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:21:00,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:21:00,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-09 05:21:00,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022175190] [2024-11-09 05:21:00,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:21:00,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 05:21:00,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:21:00,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 05:21:00,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-09 05:21:00,414 INFO L87 Difference]: Start difference. First operand 378 states and 561 transitions. Second operand has 26 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 16 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-09 05:21:11,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:11,485 INFO L93 Difference]: Finished difference Result 764 states and 1161 transitions. [2024-11-09 05:21:11,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-09 05:21:11,485 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 16 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 77 [2024-11-09 05:21:11,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:11,488 INFO L225 Difference]: With dead ends: 764 [2024-11-09 05:21:11,489 INFO L226 Difference]: Without dead ends: 449 [2024-11-09 05:21:11,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 92.2s TimeCoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-09 05:21:11,491 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 41 mSDsluCounter, 2893 mSDsCounter, 0 mSdLazyCounter, 2305 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 2313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:11,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3100 Invalid, 2313 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2305 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2024-11-09 05:21:11,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-09 05:21:11,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 392. [2024-11-09 05:21:11,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 270 states have (on average 1.4407407407407407) internal successors, (389), 273 states have internal predecessors, (389), 96 states have call successors, (96), 25 states have call predecessors, (96), 25 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-09 05:21:11,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 580 transitions. [2024-11-09 05:21:11,623 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 580 transitions. Word has length 77 [2024-11-09 05:21:11,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:11,624 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 580 transitions. [2024-11-09 05:21:11,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 16 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-09 05:21:11,624 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 580 transitions. [2024-11-09 05:21:11,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 05:21:11,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:11,626 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:21:11,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:21:11,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:21:11,827 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:21:11,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:11,828 INFO L85 PathProgramCache]: Analyzing trace with hash 151351674, now seen corresponding path program 1 times [2024-11-09 05:21:11,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:11,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604428765] [2024-11-09 05:21:11,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:11,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:11,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:12,057 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:21:12,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:21:12,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604428765] [2024-11-09 05:21:12,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604428765] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:21:12,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624760684] [2024-11-09 05:21:12,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:12,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:21:12,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:21:12,061 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:21:12,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:21:12,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:12,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 970 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:21:12,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:21:12,473 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:21:12,473 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:21:12,557 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:21:12,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624760684] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:21:12,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [662103756] [2024-11-09 05:21:12,560 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2024-11-09 05:21:12,560 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:21:12,561 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:21:12,561 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:21:12,561 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:22:28,341 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-09 05:22:28,471 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 489 for LOIs [2024-11-09 05:22:29,436 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 498 for LOIs [2024-11-09 05:22:30,553 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 434 for LOIs [2024-11-09 05:22:30,971 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 240 for LOIs [2024-11-09 05:22:31,136 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:23:25,341 WARN L286 SmtUtils]: Spent 5.60s on a formula simplification. DAG size of input: 519 DAG size of output: 511 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:23:31,147 WARN L286 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 520 DAG size of output: 511 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:23:56,887 WARN L286 SmtUtils]: Spent 5.17s on a formula simplification. DAG size of input: 504 DAG size of output: 500 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:24:07,785 WARN L286 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 498 DAG size of output: 494 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:24:13,574 WARN L286 SmtUtils]: Spent 5.30s on a formula simplification. DAG size of input: 494 DAG size of output: 490 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:24:19,431 WARN L286 SmtUtils]: Spent 5.41s 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 05:24:25,345 WARN L286 SmtUtils]: Spent 5.32s 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 05:24:31,161 WARN L286 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 485 DAG size of output: 481 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:24:31,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [662103756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:24:31,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:24:31,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-09 05:24:31,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400948953] [2024-11-09 05:24:31,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:24:31,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-09 05:24:31,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:24:31,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-09 05:24:31,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 05:24:31,168 INFO L87 Difference]: Start difference. First operand 392 states and 580 transitions. Second operand has 33 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-09 05:24:54,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:24:54,717 INFO L93 Difference]: Finished difference Result 789 states and 1196 transitions. [2024-11-09 05:24:54,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-09 05:24:54,718 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 80 [2024-11-09 05:24:54,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:24:54,721 INFO L225 Difference]: With dead ends: 789 [2024-11-09 05:24:54,721 INFO L226 Difference]: Without dead ends: 474 [2024-11-09 05:24:54,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 123.3s TimeCoverageRelationStatistics Valid=121, Invalid=1361, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 05:24:54,724 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 100 mSDsluCounter, 3600 mSDsCounter, 0 mSdLazyCounter, 3751 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 3807 SdHoareTripleChecker+Invalid, 3761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:24:54,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 3807 Invalid, 3761 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3751 Invalid, 0 Unknown, 0 Unchecked, 19.9s Time] [2024-11-09 05:24:54,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-11-09 05:24:54,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 428. [2024-11-09 05:24:54,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 300 states have (on average 1.4366666666666668) internal successors, (431), 303 states have internal predecessors, (431), 99 states have call successors, (99), 28 states have call predecessors, (99), 28 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-09 05:24:54,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 628 transitions. [2024-11-09 05:24:54,861 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 628 transitions. Word has length 80 [2024-11-09 05:24:54,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:24:54,862 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 628 transitions. [2024-11-09 05:24:54,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-09 05:24:54,862 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 628 transitions. [2024-11-09 05:24:54,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-09 05:24:54,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:24:54,865 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, 1, 1, 1, 1, 1, 1] [2024-11-09 05:24:54,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 05:24:55,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:24:55,065 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:24:55,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:24:55,066 INFO L85 PathProgramCache]: Analyzing trace with hash -2002429747, now seen corresponding path program 1 times [2024-11-09 05:24:55,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:24:55,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130044161] [2024-11-09 05:24:55,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:24:55,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:24:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:24:55,234 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:24:55,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:24:55,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130044161] [2024-11-09 05:24:55,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130044161] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:24:55,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754419122] [2024-11-09 05:24:55,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:24:55,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:24:55,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:24:55,236 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:24:55,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:24:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:24:55,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 909 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:24:55,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:24:55,612 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:24:55,612 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:24:55,696 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:24:55,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754419122] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:24:55,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1383722632] [2024-11-09 05:24:55,700 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-09 05:24:55,700 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:24:55,700 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:24:55,701 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:24:55,701 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:25:39,870 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-09 05:25:39,999 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 240 for LOIs [2024-11-09 05:25:40,170 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:27:03,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1383722632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:27:03,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:27:03,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-09 05:27:03,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175472016] [2024-11-09 05:27:03,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:27:03,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 05:27:03,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:27:03,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 05:27:03,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-09 05:27:03,827 INFO L87 Difference]: Start difference. First operand 428 states and 628 transitions. Second operand has 27 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 18 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-09 05:27:17,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:27:17,136 INFO L93 Difference]: Finished difference Result 791 states and 1187 transitions. [2024-11-09 05:27:17,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 05:27:17,136 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 18 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 79 [2024-11-09 05:27:17,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:27:17,140 INFO L225 Difference]: With dead ends: 791 [2024-11-09 05:27:17,140 INFO L226 Difference]: Without dead ends: 476 [2024-11-09 05:27:17,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 86.9s TimeCoverageRelationStatistics Valid=104, Invalid=952, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 05:27:17,142 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 17 mSDsluCounter, 2727 mSDsCounter, 0 mSdLazyCounter, 2293 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2931 SdHoareTripleChecker+Invalid, 2302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:27:17,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2931 Invalid, 2302 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2293 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2024-11-09 05:27:17,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-11-09 05:27:17,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 448. [2024-11-09 05:27:17,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 320 states have (on average 1.440625) internal successors, (461), 323 states have internal predecessors, (461), 99 states have call successors, (99), 28 states have call predecessors, (99), 28 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-09 05:27:17,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 658 transitions. [2024-11-09 05:27:17,280 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 658 transitions. Word has length 79 [2024-11-09 05:27:17,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:27:17,280 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 658 transitions. [2024-11-09 05:27:17,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 18 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-09 05:27:17,281 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 658 transitions. [2024-11-09 05:27:17,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 05:27:17,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:27:17,283 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:27:17,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 05:27:17,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:27:17,484 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:27:17,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:27:17,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1990619585, now seen corresponding path program 1 times [2024-11-09 05:27:17,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:27:17,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476186878] [2024-11-09 05:27:17,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:27:17,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:27:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:27:17,662 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:27:17,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:27:17,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476186878] [2024-11-09 05:27:17,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476186878] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:27:17,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326551152] [2024-11-09 05:27:17,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:27:17,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:27:17,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:27:17,665 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:27:17,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 05:27:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:27:18,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:27:18,051 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:27:18,086 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:27:18,088 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:27:18,188 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:27:18,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326551152] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:27:18,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1697201445] [2024-11-09 05:27:18,192 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2024-11-09 05:27:18,192 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:27:18,192 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:27:18,193 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:27:18,193 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:27:55,936 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-09 05:27:56,081 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 443 for LOIs [2024-11-09 05:27:57,561 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 271 for LOIs [2024-11-09 05:28:01,098 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 236 for LOIs [2024-11-09 05:28:01,230 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 269 for LOIs [2024-11-09 05:28:10,481 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 228 for LOIs [2024-11-09 05:28:10,671 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 248 for LOIs [2024-11-09 05:28:10,984 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 241 for LOIs [2024-11-09 05:28:11,242 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 230 for LOIs [2024-11-09 05:28:11,359 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:28:37,791 WARN L286 SmtUtils]: Spent 8.14s on a formula simplification. DAG size of input: 443 DAG size of output: 443 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:28:50,088 WARN L286 SmtUtils]: Spent 11.89s on a formula simplification. DAG size of input: 467 DAG size of output: 463 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:30:29,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1697201445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:30:29,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:30:29,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [5, 5, 5] total 59 [2024-11-09 05:30:29,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116687498] [2024-11-09 05:30:29,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:30:29,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-11-09 05:30:29,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:30:29,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-11-09 05:30:29,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=3253, Unknown=0, NotChecked=0, Total=3422 [2024-11-09 05:30:29,868 INFO L87 Difference]: Start difference. First operand 448 states and 658 transitions. Second operand has 54 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 31 states have internal predecessors, (41), 16 states have call successors, (16), 10 states have call predecessors, (16), 8 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 05:30:58,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:30:58,190 INFO L93 Difference]: Finished difference Result 910 states and 1361 transitions. [2024-11-09 05:30:58,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-09 05:30:58,191 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 31 states have internal predecessors, (41), 16 states have call successors, (16), 10 states have call predecessors, (16), 8 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 82 [2024-11-09 05:30:58,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:30:58,195 INFO L225 Difference]: With dead ends: 910 [2024-11-09 05:30:58,195 INFO L226 Difference]: Without dead ends: 555 [2024-11-09 05:30:58,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 190 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 836 ImplicationChecksByTransitivity, 141.7s TimeCoverageRelationStatistics Valid=180, Invalid=3480, Unknown=0, NotChecked=0, Total=3660 [2024-11-09 05:30:58,199 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 114 mSDsluCounter, 5248 mSDsCounter, 0 mSdLazyCounter, 6603 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 5468 SdHoareTripleChecker+Invalid, 6623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 6603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:30:58,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 5468 Invalid, 6623 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [20 Valid, 6603 Invalid, 0 Unknown, 0 Unchecked, 24.5s Time] [2024-11-09 05:30:58,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-09 05:30:58,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 488. [2024-11-09 05:30:58,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 344 states have (on average 1.4127906976744187) internal successors, (486), 347 states have internal predecessors, (486), 108 states have call successors, (108), 37 states have call predecessors, (108), 35 states have return successors, (107), 105 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-09 05:30:58,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 701 transitions. [2024-11-09 05:30:58,485 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 701 transitions. Word has length 82 [2024-11-09 05:30:58,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:30:58,486 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 701 transitions. [2024-11-09 05:30:58,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 31 states have internal predecessors, (41), 16 states have call successors, (16), 10 states have call predecessors, (16), 8 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 05:30:58,487 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 701 transitions. [2024-11-09 05:30:58,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-09 05:30:58,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:30:58,490 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] [2024-11-09 05:30:58,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 05:30:58,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:30:58,691 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:30:58,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:30:58,692 INFO L85 PathProgramCache]: Analyzing trace with hash 922450549, now seen corresponding path program 1 times [2024-11-09 05:30:58,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:30:58,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690200389] [2024-11-09 05:30:58,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:30:58,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:30:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:30:58,886 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:30:58,886 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:30:58,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690200389] [2024-11-09 05:30:58,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690200389] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:30:58,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550631399] [2024-11-09 05:30:58,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:30:58,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:30:58,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:30:58,889 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:30:58,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a7dc26-9dcf-4b00-8e1a-418060f37bc1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 05:30:59,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:30:59,312 INFO L255 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:30:59,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:30:59,358 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:30:59,358 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:30:59,468 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:30:59,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550631399] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:30:59,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1503963761] [2024-11-09 05:30:59,476 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2024-11-09 05:30:59,476 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:30:59,477 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:30:59,477 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:30:59,477 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs